Articoli di riviste: "Gadolinium Anomaly"

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Yayama, H., e A. Tomokiyo. "Electrical resistivity anomaly and specific heat in gadolinium-hydrogen solid solution". Journal of Alloys and Compounds 192, n. 1-2 (febbraio 1993): 185–87. http://dx.doi.org/10.1016/0925-8388(93)90226-d.

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Zhang, Jue, Zhuhong Wang, Qixin Wu, Yanling An, Huipeng Jia e Yuanyi Shen. "Anthropogenic Rare Earth Elements: Gadolinium in a Small Catchment in Guizhou Province, Southwest China". International Journal of Environmental Research and Public Health 16, n. 20 (22 ottobre 2019): 4052. http://dx.doi.org/10.3390/ijerph16204052.

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Rare earth elements (REEs), known as “industrial vitamins”, are widely used in medical treatment, industry, agriculture, etc. However, with the increasing demand for REEs, excess REEs, such as gadolinium (Gd), are considered micropollutants in the environment. In this paper, the distributions of dissolved REEs were analyzed in three small streams, in order to determine the extent and occurrence of Gd anomalies. The shale-normalized REE patterns in the three streams were less smooth with heavy REEs higher than light REEs, for a weak reaction of the heavy REE complexes. A negative Ce (cerium) anomaly and positive samarium (Sm) and europium (Eu) anomalies were observed in the three streams and the negative Ce anomaly was affected by the pH of the alkaline rivers. However, a positive Gd anomaly was found in only a typical urban small stream, Jinzhong. With a population of approximately 60,000, Jinzhong runs by a hospital and through wastewater treatment plants (WWTPs). The concentrations of Gd in Jinzhong ranged from 1.54 to 86.65 ng/L with high anthropogenic Gd proportions (63.64%–98.07%). Anthropogenic Gd showed significant seasonal variations and distinct spatial disparities from upstream to downstream, and it was associated with certain ions such as Cl−. Anthropogenic Gd could be attributed to gadopentetic acid (Gd-DTPA), which is used in magnetic resonance imaging (MRI) in hospitals. This type of Gd was shown to be correlated with municipal wastewater. Due to the high stability and low particulate reactivity in water, anthropogenic Gd has great potential to serve as a tracer to prove the presence of medical wastewater.

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Rozemeijer, J., C. Siderius, M. Verheul e H. Pomarius. "Tracing the spatial propagation of river inlet water into an agricultural polder area using anthropogenic gadolinium". Hydrology and Earth System Sciences Discussions 9, n. 1 (30 gennaio 2012): 1411–34. http://dx.doi.org/10.5194/hessd-9-1411-2012.

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Abstract. The inlet of diverted river water into agricultural areas or nature reserves is a frequently applied management strategy to prevent fresh water shortage. However, the inlet water might have negative consequences for water quality in the receiving water bodies. This study aimed to obtain a spatial image of the inlet water propagation into a hydrological complex polder area. We used anthropogenic gadolinium (Gd-anomaly) as a tracer for diverted river water. A clear reduction in the river water contribution was found from very dry conditions on 5 August 2010 to very wet conditions on 22 October. Despite the large inlet water impact on 5 August, the diverted river water did not propagate up into the small agricultural headwater ditches. Gadolinium proved to be an effective tracer for diverted river water in a polder system. We applied our results to upgrade the interpretation of water quality monitoring data and to validate our integrated nutrient transport models.

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Taha, Birra, Taihui Li, Daniel Boley, Clark C. Chen e Ju Sun. "Detection of Isocitrate Dehydrogenase Mutated Glioblastomas Through Anomaly Detection Analytics". Neurosurgery 89, n. 2 (22 aprile 2021): 323–28. http://dx.doi.org/10.1093/neuros/nyab130.

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Abstract BACKGROUND The rarity of Isocitrate Dehydrogenase mutated (mIDH) glioblastomas relative to wild-type IDH glioblastomas, as well as their distinct tumor physiology, effectively render them “outliers”. Specialized tools are needed to identify these outliers. OBJECTIVE To carefully craft and apply anomaly detection methods to identify mIDH glioblastoma based on radiomic features derived from magnetic resonance imaging. METHODS T1-post gadolinium images for 188 patients and 138 patients were downloaded from The Cancer Imaging Archive's (TCIA) The Cancer Genome Atlas (TCGA) glioblastoma collection, and from the University of Minnesota Medical Center (UMMC), respectively. Anomaly detection methods were tested on glioblastoma image features for the precision of mIDH detection and compared to standard classification methods. RESULTS Using anomaly detection training methods, we were able to detect IDH mutations from features in noncontrast-enhancing regions in glioblastoma with an average precision of 75.0%, 69.9%, and 69.8% using three different models. Anomaly detection methods consistently outperformed traditional two-class classification methods from 2 unique learning models (67.9%, 67.6%). The disparity in performances could not be overcome through newer, popular models such as neural networks (67.4%). CONCLUSION We employed an anomaly detection strategy in the detection of IDH mutation in glioblastoma using preoperative T1 postcontrast imaging. We show these methods outperform traditional two-class classification in the setting of dataset imbalances inherent to IDH mutation prevalence in glioblastoma. We validate our results using an external dataset and highlight new possible avenues for radiogenomic rare event prediction in glioblastoma and beyond.

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Shah, M. D., e B. Want. "Dielectric and conducting behavior of gadolinium–terbium fumarate heptahydrate crystals". Journal of Advanced Dielectrics 05, n. 03 (settembre 2015): 1550020. http://dx.doi.org/10.1142/s2010135x15500204.

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Gadolinium–terbium fumarate heptahydrate crystals were grown in silica gel by using single gel diffusion technique. The crystals were characterized by different physico-chemical techniques of characterization. Powder X-ray diffraction results showed that the grown material is purely crystalline in nature. Elemental analyses suggested the chemical formula of the compound to be Gd Tb [Formula: see text]. Energy dispersive X-ray analysis confirmed the presence of Gd and Tb in the title compound. The dielectric and conductivity studies of the grown compound were carried as function of frequency of applied field and the temperature. The grown material showed a dielectric anomaly which was correlated with its thermal behavior. The ac conductivity of the material showed Jonscher's power law behavior: [Formula: see text], with a temperature-dependent power exponent [Formula: see text]. The conductivity was found to be a function of temperature and frequency.

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Elbaz-Poulichet, Françoise, Jean-Luc Seidel e Clara Othoniel. "Occurrence of an anthropogenic gadolinium anomaly in river and coastal waters of Southern France". Water Research 36, n. 4 (febbraio 2002): 1102–5. http://dx.doi.org/10.1016/s0043-1354(01)00370-0.

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Rozemeijer, J., C. Siderius, M. Verheul e H. Pomarius. "Tracing the spatial propagation of river inlet water into an agricultural polder area using anthropogenic gadolinium". Hydrology and Earth System Sciences 16, n. 8 (2 agosto 2012): 2405–15. http://dx.doi.org/10.5194/hess-16-2405-2012.

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Abstract. Diverting river water into agricultural areas or nature reserves is a frequently applied management strategy to prevent fresh water shortage. However, the river water might have negative consequences for chemical and ecological water quality in the receiving water bodies. This study aimed to obtain a spatial image of the diverted river water propagation into a hydrologically complex polder area, the polder Quarles van Ufford in The Netherlands. We used anthropogenic gadolinium (Gd-anomaly) as a tracer for river water that was diverted into the polder. A clear reduction in the river water contribution was found between very dry conditions on 5 August 2010 and very wet conditions on 22 October. Despite the large river water impact on 5 August, the diverted river water did not propagate up into the small agricultural headwater ditches. Gadolinium proved to be an effective tracer for diverted river water in a polder system. We applied our results to upgrade the interpretation of water quality monitoring data and to validate an integrated nutrient transport model.

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Knappe, Andrea, Peter Möller, Peter Dulski e Asaf Pekdeger. "Positive gadolinium anomaly in surface water and ground water of the urban area Berlin, Germany". Geochemistry 65, n. 2 (maggio 2005): 167–89. http://dx.doi.org/10.1016/j.chemer.2004.08.004.

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Harrowfield, JM, WM Lu, BW Skelton e AH White. "Structural Systematics of Rare Earth Complexes. III. Structural Characterization of Lanthanoid(III) Picrate Hydrates: Gadolinium Picrate Dodecahydrate—an X-Ray-Induced Phase Modification?—and Some General Aspects of the Structural Chemistry of Lanthanoid Picrates". Australian Journal of Chemistry 47, n. 2 (1994): 349. http://dx.doi.org/10.1071/ch9940349.

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In the course of the studies described in Parts I and II, an unusual result was observed in the case of the structure determination of hydrated gadolinium(III) picrate. Midway through data collection, the monoclinic P 21/c phase underwent a phase modification (X-ray-induced?) to a similar cell more nearly resembling that of the La → Pr structure type recorded previously, with no loss of crystal integrity, and with useful data sets being obtained on both forms. Redetermination of the structure with a fresh sample yielded no reproduction of the anomaly. These results are recorded and discussed, together with an overview of the consequences of the data of Parts I-III in relation to those of other literature in the field.

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Inoue, Kazumasa, Masahiro Fukushi, Akira Furukawa, Sarata Kumar Sahoo, Nimelan Veerasamy, Ken Ichimura, Shogo Kasahara et al. "Impact on gadolinium anomaly in river waters in Tokyo related to the increased number of MRI devices in use". Marine Pollution Bulletin 154 (maggio 2020): 111148. http://dx.doi.org/10.1016/j.marpolbul.2020.111148.

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Zhu, Yanbei, Masuki Hoshino, Hiroshi Yamada, Akihide Itoh e Hiroki Haraguchi. "Gadolinium Anomaly in the Distributions of Rare Earth Elements Observed for Coastal Seawater and River Waters around Nagoya City". Bulletin of the Chemical Society of Japan 77, n. 10 (ottobre 2004): 1835–42. http://dx.doi.org/10.1246/bcsj.77.1835.

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McCoy, Amy L., e Paul R. Sheppard. "Riparian Dendrochemistry: Detecting Anthropogenic Gadolinium in Trees along an Effluent-Dominated Desert River". Forests 13, n. 12 (1 dicembre 2022): 2047. http://dx.doi.org/10.3390/f13122047.

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This research documents spatial and temporal patterns of effluent uptake by riparian trees through development of a new and innovative application for dendrochronology, specifically dendrochemistry. The rare-earth element (REE) gadolinium (Gd) is a known micro-pollutant in its anthropogenic form and enters streams from wastewater treatment plants. Anthropogenic Gd was first used in select medical procedures in 1988 and has since been used as a contrast agent for medical imaging. It is naturally flushed from the body following procedures and is subsequently discharged via treatment plants into waterways. Riparian trees that utilize effluent-dominated surface water take up Gd, which then remains in annual growth rings. The year 1988 serves as presence/absence date stamp for Gd in tree rings, thereby making Gd an ideal marker for this dendrochronological study. Results from this study along the Upper Santa Cruz River in southeastern Arizona show levels of Gd in effluent-dominated surface flows to be elevated above the threshold that distinguishes an anthropogenic anomaly from natural GdSN abundance in freshwater, thereby confirming that anthropogenic Gd is present. Gd was found in the growth rings of cottonwood trees (Populus fremontii var. arizonica (Sarg.) Jeps.) that are growing in the floodway adjacent to the effluent-dominated portion of the stream. The presence of Gd in cottonwood annual rings confirms that the trees are utilizing effluent over the course of the growing season. Furthermore, temporal patterns of Gd concentrations in trees directly adjacent to the stream may be reflective of high-frequency changes in surface water quality. Information on the impacts of effluent quality on the chemical composition of tree rings can be a useful monitoring tool to evaluate the spatial and temporal patterns of effluent use in riparian trees and to identify high-frequency changes in surface water quality.

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Suekuni, Hiroshi, Tomoyuki Kido, Yasuhiro Shiraishi, Yoshihiro Takimoto, Kuniaki Hirai, Masashi Nakamura, Yoshiaki Komori, Kenji Ohmoto, Teruhito Mochizuki e Teruhito Kido. "Detecting a subendocardial infarction in a child with coronary anomaly by three-dimensional late gadolinium enhancement MRI using compressed sensing". Radiology Case Reports 16, n. 2 (febbraio 2021): 377–80. http://dx.doi.org/10.1016/j.radcr.2020.11.048.

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Massara, M. "A RARE CASE OF INTERVENTRICULAR SEPTUM DUPLICATION". European Heart Journal Supplements 26, Supplement_2 (aprile 2024): ii193. http://dx.doi.org/10.1093/eurheartjsupp/suae036.462.

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Abstract Case Report A 62–year–old man, history of hypertension. In 2015, there was suspicion of non–compaction cardiomyopathy, and he underwent cardiac MRI at another facility (report not available). The patient reported palpitations and dyspnea with exertion, leading to a follow–up visit. EKG showed sinus rhythm 90/min, nonspecific intraventricular conduction delay and isolated monomorphic ventricular ectopic beats. Echo revealed a mildly dilated left ventricle (end–diastolic volume 88 ml/m), systolic function at the lower limits of normal (EF 53%), and prominent muscular structures near the posterior interventricular septum (SIV), likely related to anomalies of the papillary muscles (prominent and possibly duplicated posterior–medial papillary muscle). There was apical trabecular protrusion, which did not meet the criteria for non–compaction (NC/C ratio in systole approximately 1), with no other significant findings. The cardiac MRI, performed to assess dilated cardiomyopathy, revealed a conspicuous structural abnormality in the septo–papillary region, located medio–apically and paraseptal–endocardial in the left ventricle. This anomaly lacked evident chordae tendineae with the mitral valve leaflets and exhibited synchronous systo–diastolic motion with the left ventricular wall, suggesting septal duplication. The septal thickness was slightly reduced, particularly in the medio–apical region. Additionally, there was hypertrabeculation of the posterior and lateral walls of the left ventricle, exceeding the threshold for non–compaction (NC/C ratio in end–diastole: 2.6 – normal range: <2.3). Left ventricular mass was normal (mass: 173.52 g; mass/body surface area (BSA): 86.58 g/m). Basal septum, medio–apical septum and medio–apical lateral wallshowed hypokinetic contractility. The left ventricle was dilated (end–diastolic diameter: 55.0 mm; end–systolic diameter: 45.3 mm – end–diastolic volume: 230 ml; stroke volume/BSA: 57.6 ml/m² – EF: 51%). Areas of late gadolinium enhancement (LGE) were observed in the anterior medio–basal septum and at the site of the described structural muscular anomaly, both displaying an intramural non–ischemic pattern. Conclusions The described findings suggest a picture of dilated cardiomyopathy and an associated structural septo–papillary anomaly of uncertain diagnostic interpretation (septum duplication with associated non–compacted myocardium? duplicated posterior–medial papillary muscle with associated non–compacted myocardium?).

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Prandi, Francesca Romana, Ali N. Zaidi, Gina LaRocca, Michael Hadley, Maria Riasat, Malcolm O. Anastasius, Pedro R. Moreno et al. "Sudden Cardiac Arrest in an Adult with Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery (ALCAPA): Case Report". International Journal of Environmental Research and Public Health 19, n. 3 (29 gennaio 2022): 1554. http://dx.doi.org/10.3390/ijerph19031554.

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Introduction: Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare coronary artery anomaly that carries 90% mortality in the first year of life when left untreated. The diagnosis of ALCAPA is rare in adulthood, and it includes a broad spectrum of clinical manifestations, including sudden cardiac death (SCD). Case report: We report a rare case of resuscitated sudden cardiac arrest in a 55-year-old female, who was diagnosed with ALCAPA and underwent successful surgical correction and implantable cardioverter defibrillator (ICD) implantation for secondary prevention. Discussion: ALCAPA diagnosis is not confined to childhood, and it represents a rare cause of life-threatening arrhythmias and SCD in the adult population. Surgical correction is recommended, regardless of age, presence of symptoms or inducible myocardial ischemia. Multimodality imaging is crucial for diagnosis, management planning and follow up. Assessment of the risk of recurrent ventricular arrhythmias, despite full revascularization, should be performed in all adults with ALCAPA. Myocardial scar detected via late gadolinium enhancement represents a potential irreversible substrate for ventricular arrhythmias, and it provides additional information to evaluate indication of an ICD for secondary prevention.

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Kamal, Elsharawy, e Ahmed M. Abd El-Fattah. "Transoral, minimally invasive, video-assisted technique for lingual thyroid". Egyptian Journal of Otolaryngology 29, n. 1 (gennaio 2013): 34–37. http://dx.doi.org/10.7123/01.ejo.0000422842.26083.02.

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EnAbstract Introduction Lingual thyroid is a rare developmental congenital anomaly. Symptoms may not develop unless the gland enlarges because of gland hypertrophy or malignancy. When removal is advocated, most proposed techniques are invasive and associated with substantial morbidity. Materials and methods The approval of the Otolaryngology Department Research and Ethics Committee, Mansoura University, to perform an analysis of a new minimally invasive surgical technique for the management of a case of obstructive lingual thyroid gland was obtained before study commencement. Careful preoperative assessment of the diagnosis of the lingual thyroid gland included an 131I scan and an MRI of the head and neck with and without gadolinium. Results A transoral, minimally invasive, video-assisted thyroidectomy, using Harmonic shears, was performed on a 22-year-old man with a longstanding lingual thyroid that had begun to cause dysphagia and upper airway obstruction. The procedural time was 85 min, and the estimated blood loss was 20 cm3. The patient tolerated a regular diet with minimal discomfort and was discharged home within 24 h. Conclusion The combination of the transoral endoscope-guided technique with Harmonic vascular control is considered a surgically minimally invasive satisfactory option in well-trained hands familiar with such tools.

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Epstein, Benjamin, Liam McGuirk, Matthew Krasnow, Sarah Manely, Emily Sayegh, Tara Patale, Javin Schefflein et al. "RF26 | PSAT109 The Prevalence of Abnormalities in Cranial MRIs in Children with Short Stature Prior to Growth Hormone Therapy". Journal of the Endocrine Society 6, Supplement_1 (1 novembre 2022): A646—A647. http://dx.doi.org/10.1210/jendso/bvac150.1337.

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Abstract Background MRIs of the brain in patients with short stature have shown a number of abnormalities. Some of these radiological findings can have clinical significance. Here we have looked at MRI results in such a population. Objective To review the value and significance of the prevalence of all abnormal MRI findings of children with short stature who are to undergo growth hormone therapy (GHT). Materials and methods This study involved a retrospective review of MRI findings in all children prescribed GHT within a pediatric health network's database from Jan 2020 to Aug 2021. Post-gadolinium contrast enhanced brain and pituitary MRIs utilizing 2 mm slices were used to calculate pituitary volume. Pituitary volume was calculated using the ellipsoid formula (LxWxH/2). Pediatric patients diagnosed with non-acquired GHD or ISS, with MRIs having been performed between Jan 2020 and Aug 2021 and having been prescribed GHT by Aug 2021 were included in this study. Patients who experienced other endocrine abnormalities such as SGA, Turner Syndrome, and Noonan Syndrome were excluded. Patients with obstruction of sellar and parasellar religion due to movement artifacts or magnetic interference on their MRIs were also excluded. Results Of one hundred and twelve patients found, eighty one met criteria for inclusion in this study. Of the eighty one MRIs reviewed, twenty eight children, 34.6%, had normal pituitary anatomy and fifty three, 65.4%, had a pituitary abnormality. Out of the fifty three with a pituitary abnormality, forty three subjects, 81.1%, were determined to have a small pituitary volume, including significant pituitary hypoplasia. Ten subjects (18.9%) had an enlarged pituitary volume (pituitary hyperplasia). Of these ten patients who had an enlarged pituitary volume, eight were pubertal (80%). Nine children with a pituitary abnormality (16.9%) had additional structural anomalies on their MRIs. One had a small left frontal developmental venous anomaly. Two had Rathke's cleft cysts. Two had pars intermedia cysts. One had a small right parietal developmental venous anomaly. One had a small left parietal developmental venous anomaly. One had a left cerebellar tonsillar ectopia bordering on chiari malformation (.5 mm away on the coronal plane). One had a small lobulation (semi-bulbous projection) of the anterior pituitary gland, superior and anterior to the infundibular stalk. Conclusion Prevalence of brain abnormalities in children with short stature who are to undergo GHT is significant and warrants MRI evaluations in these subjects. Presentation: Saturday, June 11, 2022 1:00 p.m. - 3:00 p.m., Monday, June 13, 2022 12:58 p.m. - 1:03 p.m.

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Petelet-Giraud, Emmanuelle, Gerard Klaver e Philippe Negrel. "Natural versus anthropogenic sources in the surface- and groundwater dissolved load of the Dommel river (Meuse basin): Constraints by boron and strontium isotopes and gadolinium anomaly". Journal of Hydrology 369, n. 3-4 (maggio 2009): 336–49. http://dx.doi.org/10.1016/j.jhydrol.2009.02.029.

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Pozzati, Eugenio, Anna Federica Marliani, Mino Zucchelli, Maria Pia Foschini, Massimo Dall'Olio e Giuseppe Lanzino. "The neurovascular triad: mixed cavernous, capillary, and venous malformations of the brainstem". Journal of Neurosurgery 107, n. 6 (dicembre 2007): 1113–19. http://dx.doi.org/10.3171/jns-07/12/1113.

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Object The four types of cerebrovascular malformations may sometimes be combined and more often occur in pairs; triads are exceptional. The authors present six patients with the clinicoradiographic profile of mixed vascular malformations of the brainstem, including cavernous malformation (CM), capillary telangiectasia, and developmental venous anomaly (DVA). Methods Five patients (one of whom was a child) suffered from hemorrhage, suggesting that this complex association has a high bleeding potential. Progressive growth, rebleeding, and de novo occurrence of the associated CM were documented in three cases. Magnetic resonance imaging of the brain was obtained in all patients by using one or more of the following modalities: T1-weighted sequences before and after gadolinium administration; T2-weighted sequences; T2-weighted fluid attenuated inversion recovery; T1-weighted fast spin echo; and diffusion weighted, diffusion tensor, and perfusion imaging in three cases. Results Three patients were surgically treated with the intention of excising the hemorrhagic lesion, but only two patients had their malformations successfully removed. In the third case, diffuse pontine telangiectasia precluded the safe excision of the CM. Histological examination demonstrated a blended pathological milieu characterized by coalescent telangiectasia and venules associated with loculated endothelial chambers resembling an immature or de novo CM. Three patients were treated conservatively; recurrent minor hemorrhage occurred in one case. The authors found these malformations to be arranged in two basic relationships: CM inside the telangiectasia and CM in the radicles of the DVA. Stenosis of the main venous collector and dilation of the medullary veins were important findings. Conclusions The pathogenesis of this malformation may be referred to a developmental deviance of the brainstem capillary–venous network associated with transitional vessels and loculated endothelial vascular spaces related to genetic and acquired origins, probably in a restrictive venous outflow milieu.

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Tolpadi, Aniket A., Johanna Luitjens, Felix G. Gassert, Xiaojuan Li, Thomas M. Link, Sharmila Majumdar e Valentina Pedoia. "Synthetic Inflammation Imaging with PatchGAN Deep Learning Networks". Bioengineering 10, n. 5 (25 aprile 2023): 516. http://dx.doi.org/10.3390/bioengineering10050516.

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Background: Gadolinium (Gd)-enhanced Magnetic Resonance Imaging (MRI) is crucial in several applications, including oncology, cardiac imaging, and musculoskeletal inflammatory imaging. One use case is rheumatoid arthritis (RA), a widespread autoimmune condition for which Gd MRI is crucial in imaging synovial joint inflammation, but Gd administration has well-documented safety concerns. As such, algorithms that could synthetically generate post-contrast peripheral joint MR images from non-contrast MR sequences would have immense clinical utility. Moreover, while such algorithms have been investigated for other anatomies, they are largely unexplored for musculoskeletal applications such as RA, and efforts to understand trained models and improve trust in their predictions have been limited in medical imaging. Methods: A dataset of 27 RA patients was used to train algorithms that synthetically generated post-Gd IDEAL wrist coronal T1-weighted scans from pre-contrast scans. UNets and PatchGANs were trained, leveraging an anomaly-weighted L1 loss and global generative adversarial network (GAN) loss for the PatchGAN. Occlusion and uncertainty maps were also generated to understand model performance. Results: UNet synthetic post-contrast images exhibited stronger normalized root mean square error (nRMSE) than PatchGAN in full volumes and the wrist, but PatchGAN outperformed UNet in synovial joints (UNet nRMSEs: volume = 6.29 ± 0.88, wrist = 4.36 ± 0.60, synovial = 26.18 ± 7.45; PatchGAN nRMSEs: volume = 6.72 ± 0.81, wrist = 6.07 ± 1.22, synovial = 23.14 ± 7.37; n = 7). Occlusion maps showed that synovial joints made substantial contributions to PatchGAN and UNet predictions, while uncertainty maps showed that PatchGAN predictions were more confident within those joints. Conclusions: Both pipelines showed promising performance in synthesizing post-contrast images, but PatchGAN performance was stronger and more confident within synovial joints, where an algorithm like this would have maximal clinical utility. Image synthesis approaches are therefore promising for RA and synthetic inflammatory imaging.

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Moussa, Dalia M. El Saeid Mohamed, Hala M. Maghraby e Rawhia T. Hassan. "The role of MRI in the assessment of different causes of epilepsy". Scientific Journal of Al-Azhar Medical Faculty, Girls 5, n. 1 (2021): 182–90. http://dx.doi.org/10.4103/sjamf.sjamf_116_20.

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Background and aim Seizures are one of the most common medical problems affecting children, and epilepsy is the most common chronic neurological condition in children. The aim of this study was to highlight the different causes of epilepsy and to demonstrate and emphasize the usefulness of MRI epilepsy protocol on high-field magnet 3 T as imaging modality in the evaluation of pediatric epilepsy and its value in detecting subtle abnormalities that were commonly missed by previous nondedicated studies. Patients and methods This prospective study was conducted upon 40 pediatric patients diagnosed with epilepsy referred to a private center for MRI evaluation done on high-field magnet 3 T MRI, including the following sequences: three-dimensional T1 coronal (1 mm thick partition) with multi-planar reformat (MPR) on axial and sagittal, three-dimensional sagittal fluid attenuated inversion recovery (FLAIR) (1 or 1.5 mm thick, partition) with MPR on coronal and axial planes, high-resolution two-dimensional coronal T2‐weighted MRI, two-dimensional axial T2 (3 mm thickness), susceptibility weighted image (SWI) sequences (1.5 mm thick partition), and diffusion weighted image (DWI), as well as optional sequences, such as T1 MRI with gadolinium to look for contrast enhancement in the time interval between April 2018 and May 2020. Results The most common cause of epilepsy in our patients was malformation of the cortical development, accounting for 35% (14 patients), followed by neurocutaneous disorder and mesial temporal lobe lesions, each accounting for 25% (10 patients), followed by miscellaneous causes including brain tumors and vascular malformation [arterio-venous fistula (AVF), developmental venous anomaly (DVA), and cavernoma], accounting for 15% (six patients). Conclusion The dedicated MRI epilepsy protocol is a valuable tool in detection and illustration of the MR spectrum of different structural lesions causing pediatric seizures, describing the main MRI features of these disorders.

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Patani, F., P. Tofoni, C. Lofiego, F. Vagnarelli, I. Capodaglio, G. Lombardi, F. Pietrucci, N. Schicchi, P. Esposto Pirani e G. Perna. "C62 CHALLENGING DIAGNOSIS OF A TRIPLE CARDIAC PATHOLOGY: TRANSTHYRETIN AMYLOIDOSIS WITH ASPECTS OF HYPERTROPHIC OBSTRUCTIVE CARDIOMYOPATHY AND ANOMALOUS CORONARY ARTERY". European Heart Journal Supplements 25, Supplement_D (maggio 2023): D26—D27. http://dx.doi.org/10.1093/eurheartjsupp/suad111.061.

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Abstract A 70 years–old man with a history of systemic hypertension and surgically treated bilateral carpal tunnel was referred for dyspnea on exertion for few months. At physical examination a systolic heart murmur exacerbated by Valsalva maneuver was appreciated; no signs of heart failure. EKG with low–voltage QRS is shown in Fig.1A. Blood tests showed elevated NT–proBNP (1434 pg/ml). Transthoracic echo (ETT) revealed hyperdynamic left ventricle (LV) with severe asymmetric hypertrophy (interventricular septum 23 mm, posterior wall 17 mm), ‘granular sparkling’ appearance of myocardium, grade 2 diastolic dysfunction and ‘apical sparing’ pattern at global longitudinal strain (GLS, Fig.1B). Moreover, elongated mitral leaflets, anomalies of mitral sub–valvular apparatus with apically displaced papillary muscles and systolic anterior motion of the mitral valve (SAM) with dynamic outflow tract obstruction (20 mmHg at rest and 90–100 mmHg with Valsalva maneuver) were seen (Fig. 2A–B–C). For ETT suspicion of a coronary artery anomaly (Fig.3A), the patient underwent coronary CT angiography that confirmed a separate origin of left anterior descending artery (LAD) from right coronary sinus with a long mid–proximal intramyocardial bridge (Fig.3B–C). As a part of evaluation of the hypertrophic phenotype, a 99mTC–HDP bone scintigraphy was performed with high–grade of cardiac uptake (Perugini Score 2, Fig.1C). Screening for monoclonal gammopathy and genetic testing for hereditary amyloidosis resulted negative. Cardiac MRI revealed late gadolinium enhancement (LGE) in midwall septum, diffuse endocardial LGE in the LV basal inferior and posterolateral walls (Fig.1D), elevated T1 mapping and ECV (40–42%) and confirmed the asymmetric hypertrophy with apically displaced papillary muscles (Fig.2D) and SAM. These clinical, EKG and imaging features led to a non–invasive diagnosis of wild–type transthyretin cardiac amyloidosis (ATTRwt) with aspects of hypertrophic obstructive cardiomyopathy (HOCM). The patient started a disease–modifying therapy with Tafamidis and, cautiously, Metoprolol tartrate, with good tolerance and relevant reduction of LVOT obstruction at follow–up. Genetic testing for HCM was also performed. In conclusion, in rare cases hypertrophic phenotype may be challenging, showing features overlap between ATTR and HOCM. Multimodality evaluation is crucial for a correct diagnosis, thus identifying the most effective target–therapy for the underlying hypertrophic phenotype.

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Vidiri, A., M. Crecco, R. Floris, R. Mastrostefano, M. Mattioli e S. Squillaci. "Angiomi venosi o «anomalie di sviluppo venoso»". Rivista di Neuroradiologia 9, n. 1 (febbraio 1996): 37–46. http://dx.doi.org/10.1177/197140099600900104.

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Sono stati studiati con RM 29 pazienti con anomalie di drenaggio venoso in condizio-ni basali e dopo Gadolinio-DTPA; 24 sono stati sottoposti anche ad angio-RM. Nella valutazione dei risultati è stato assegnato un punteggio: 0 quando l'anomalia non era evidenziata; 1 per la rappresentazione del solo collettore; 2 per la dimostrazione del collettore e delle vene midollari; 3 per la dimostrazione del collettore, delle vene midollari e del tipo di drenaggio. È stata inoltre considerata la presenza di eventuali angiomi cavernosi associati e l'eventuale correlazione con la sintomatologia. Le sequenze SE Tl pesate dopo Gadolinio-DTPA in doppia dose sono risultate quelle con maggiore accuratezza diagnostica (score 77) sia rispetto alle sequenze basali (T1 score 12, T2 score 31) sia nei 24 pazienti sottoposti anche ad angio-RM (SE T1 dopo Gadolinio score 66, angio-RM score 61). L'angio-RM è risultata utile nell' evidenziare il tipo di drenaggio. In 5 casi l'anomalia di sviluppo venoso era associata ad un angioma cavernoso, in 4 casi le due malformazioni erano in stretto rapporto; solo in due casi però l'angioma cavernoso presentava il tipico aspetto a «pop-corn». In un solo paziente l'anomalia venosa si è presentata come evento emorragico, mentre in un altro caso era in stretto rapporto con un'area di basso segnale in T1 e T2, esito di una pregressa emorragia. Nel 34% i pazienti hanno presentato epilessia senza però una costante correlazione tra sede dell'ano-malia venosa e sede dell'anomalia elettroencefalografica.

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D'Aprile, P., G. R. Grande, C. F. Andreula, G. Tripoli e A. Carella. "Angiomi venosi: Studio Angio-RM con tecnica 2D TOF". Rivista di Neuroradiologia 6, n. 2 (maggio 1993): 173–79. http://dx.doi.org/10.1177/197140099300600207.

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Gli autori descrivono, otto casi di angioma venoso (AV) esaminati con RM ed angiografia a risonanza magnetica con tecnica 2D TOF, sequenze FISP. La buona qualità delle immagini ottenute, ha permesso di definire sempre i caratteri anatomo-patologici della anomalia (sede, estensione, configurazione, ecc.) e si conviene sull'utilità di completare lo studio RM di base con lo studio Angio-RM del circolo venoso: in quattro casi è stato somministrato. Gadolinio-DTPA che ha migliorato sensibilmente la qualità delle immagini. È stata inoltre eseguita una correlazione clinico-radiologica, rilevatasi positiva solo in un caso, a dimostrazione che tale anomalia del circolo venoso, pur essendo congenita, raramente appare sintomatica e generalmente non necessita di alcun approccio terapeutico. In conclusione lo studio del circolo venoso cerebrale con Angio-RM è considerato dagli autori opportuno in tutti i casi in cui l'esame di base RM sia diagnostico o dia il sospetto di anomalia vascolare venosa, per una maggiore accuratezza diagnostica al fine di evitare lo studio con angiografia tradizionale.

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Lapinskas, Tomas, Chiodi Elisabetta, Chrysanthos Grigoratos, Ricardo Ladeiras-Lopes, GJ Fent, E. Abdul Rahman, Jonathan Rodrigues et al. "VIEWING ONLY POSTERS1323Evaluation of right ventricular transverse strain and strain rate in patients with acute ST-segment elevation myocardial infarction: a cardiac magnetic resonance feature tracking study1333Cardiac resynchronization in ischemic heart failure patients: a comparison between therapy guided by cardiac magnetic resonance imaging and 2D-speckle tracking echocardiography1338Cardiac magnetic resonance versus bisphosphonate scintigraphy for diagnosis of cardiac amyloidosis1341Strain relaxation index, a novel tagged MRI-derived diastolic function parameter, is impaired in metabolic syndrome1349Global Longitudinal Strain Predicts Chronic Myocardial Infarction in Patients with Normal Ejection Fraction1352Optimal Dose Of Dobutamine During Low-Dose Dobutamine Stress Echocardiography In Correctly Identify Viable Segments On Cardiovascular Magnetic Resonance1368Absolute wall thickening and left ventricular ejection fraction–a unifying theory of myocardial contraction and heart failure?1376Transient St Elevation in Acs Like Myocarditis1379Patients after Fontan with a “total cavopulmonary connection” Fontan modification develop more collateral flow compared to “old-fashioned” Fontan modifications1387A MRI–derived 3D patient specific model for fibrosis quantification in atrial fibrillation1391Scar burden and survival in patients with ischemic cardiomyopathy and poor LV ejection fraction1392Relation of inflammatory markers with myocardial and microvascular injury in patients with reperfused ST- elevation myocardial infarction1406Equivalence of segmented conventional and fast single-shot late gadolinium enhancement (LGE) techniques for1410Cardiac Mri Appearances of Tuberculosis - A Review of Varied Presentations in India1415Atheroma burden, cardiac remodelling and epicardial fat: A comparison between healthy South Asian and European adults using Whole Body Cardiovascular MR1418Symptomatic Ventricular Arrhythmias: Diagnostic Yield of Cardiac Magnetic Resonance1421CMR assessment of aortic stiffness in asymptomatic low risk patients with type 2 diabetes mellitus1436Shock index as a predictor of myocardial damage and clinical outcome in ST-elevation myocardial infarction1451Combined biomarker testing for the prediction of microvascular obstruction after primary percutaneous coronary intervention for acute ST-segment elevation myocardial infarction1452A novel oscillometric technique compared with cardiac magnetic resonance for the assessment of aortic pulse wave velocity in ST-segment elevation myocardial infarction1456Aorto-pulmonary collaterals evaluated by CMR is associated to reduced “effective” cardiac index late after Fontan palliation1458Evaluation of pulmonary transit time and Pulmonary Blood Volume with first-pass perfusion CMR imaging in adult with repaired Congenital Heart disease1459Prognostic value of the cardiac magnetic resonance as a predictor of improvement in ventricular function after TakoTsubo syndrome1462Diagnostic performance of ECG detection of left atrial enlargement in patients with arterial hypertension relative to the cardiac magnetic resonance gold-standard: impact of obesity1463Utility of cardiac magnetic resonance imaging for diagnosis of cardiac sarcoidosis and prediction of therapeutic effects in patients with complete heart block and implanted magnetic resonance-conditional pacemaker: A multicenter study1467Cardiac magnetic resonance late gadolinium enhancement in patients with genetic dilated cardiomyopathy14712.Left ventricular hypertrophy in hypertensive patients–comparison of Cardiac Magnetic Resonance and Echocardiographic analysis of morphological and functional LV-parameters1472Is Angiographic Perfusion Score assessed in patients with acute myocardial infarction correlated with Cardiac Magnetic Resonance infarct size and N-terminal pro-brain natriuretic peptide in 6-month follow-up1476Cardiac Magnetic Resonance Patterns of Left Ventricular Diastolic Function In Hypertrophic Cardiomyopathy1477Impact of platelet volume on thrombus burden and tissue reperfusion in patients with STEMI treated with primary angioplasty: MRI study1479Right ventricle systolic function assessment and its prognostic implications in cardiac amyloidosis1484Cardiac MRI - an important tool in the evaluation of multsystemic inflamatory diseases. An Erdheim-Chester Disease case report1485Predictive value of cardiac magnetic resonance for future adverse cardiac events in patients with ST-segment elevation myocardial infarction1486Time-to-treatment but not thrombectomy influence infarct size and microvascular obstruction in patients with acute ST-segment elevation myocardial infarction treated with primary coronary intervention1489Primary PCI versus Early Routine Post Fibrinolysis PCI for ST Elevation Myocardial Infarction1490Evaluation of ventricular function in Fontan patients undergoing feature tracking magnetic resonance strain1491Impacts of atrialized right ventricle and left ventricular displacement in Ebstein's anomaly on left ventricular function assessed by cardiovascular MRI1494Final diagnosis for patients presenting with chest pain, electrocardiographic changes or troponin rise and normal coronary arteries: insights from Cardiovascular MRI in our population1495Early Predictive Factors of LV Remodeling after STEMI; Assessment by Coronary Angiogram and Cadiovascular Magnetic Resonance1497The Pathobiologic Mechanisms and the Prognostic Meaning of t wave Inversion in Acute Myocarditis. a Study Performed by Cardiac Magnetic Resonance1501The Influence of Left Atrial Function on Exercise Tolerance in Patients with Heart Failure and Preserved Ejection Fraction: A Cardiac Magnetic Resonance Feature Tracking Study1504Microvascular Obstruction in Patients with Anterior ST-Elevation Myocardial Infarction who Underwent Primary Percutaneous Coronary Intervention: Predictors and Impact on the Left Ventricular Function1508Histological Validation of ECV Quantification by Cardiac Magnetic Resonance T1 Mapping in Cardiac Amyloidosis1513Comparative Evaluation of Flow Quantification Across the Atrioventricular Valve in Patients with Functional Univentricular Heart After Fontan's Surgery and Healthy Controls: Measurement by 4D Flow Magnetic Resonance Imaging and Streamline Visualization1515Does arterial switch for d-transposition of the great arteries alter myocardial deformation of the ventricles?1527Accuracy of T1 Mapping by multi-professional CMR operators to predict myocardial infarct1531Detecting hypertensive heart disease: the additive value of cardiovascular magnetic resonance imaging1534Diagnostic Performance of Cardiac Magnetic Resonance Strain Parameters in Assesment of Myocardial Ischemia1535Relationships between left ventricular filling pressures and longitudinal dysfunction with myocardial fibrosis in uncomplicated hypertensive patients1539Predictive Clinical Factors of Tissue Damage Severity in Reperfused Acute Myocardial Infarction as Visualized by Cardiac Magnetic Resonance1541Which CMR derived parameter predicts better the need of invasive treatment in aortic coarctation?1543Contrast-enhanced magnetic resonance tomography in patients with supraventricular tachyarrhythmias1546Prognostic Value of CMR Imaging Biomarkers on Outcome in Peripheral Arterial Disease: a 6-year Follow-up Pilot Study1549Dobutamine-Stress-CMR in Young Adults after Arterial Switch Operation as Neonates1553Impact of posteromedial papillary muscle infarction on mitral regurgitation after ST-segment elevation myocardial infarction1556Role of cardiac magnetic resonance imaging in assessment of left ventricular hypertrophy1569Using intrinsic Cardiac Shear Waves to measure Myocardial Stiffness: Preliminary results from Patients with Heart failure with preserved Ejection Fraction1571Relationship of cerebrovascular reactivity and MRI pattern of carotid atherosclerotic plaque1577Feasibility study of an MR conditional pedal ergometer for cardiac stress MRI–preliminary results in healthy volunteers and patients with suspected coronary artery disease1581Pulmonary valve replacement for severe pulmonary stenosis has a positive effect on left ventricular remodeling1582The RV after cardiac surgery, more resilient than thought: multiparametric quantification shows altered rather than reduced function1584Usefulness of cardiovascular magnetic resonance to differentate coronary artery disease from non ischemic cardiomyoptathy in patients with heart failure1593What does CMR add to the ESC Risk Prediction Model to Assess the Occurrence of Sudden Cardiac Death in Patients with HCM?1597Detecting Progression of Diffuse Interstitial Fibrosis in Alstrom Syndrome1612Diffuse fibrosis in the ventricles of patients with transposition of great arteries late after atrial switch1631Utility of Cardiac Magnetic Resonance in the diagnosis and stratification of arrhythmic risk in patients with confirmed or suspected ventricular arrhythmias1635Size matters: pulmonary veins geometry by cardiac magnetic resonance imaging in atrial fibrillation patients1642How do the differences in Left Ventricular wall measurements from Echocardiography and CMR in patients with Hypertrophic Cardiomyopathy affect current Sudden Cardiac Death Risk Scores?1651Noninvasive assessment of intracardiac viscous energy loss in Fontan patients from 4D Flow CMR1653Behcet and Myocardial Infarction: A Rare Combination1328Impact of New Cerebral Ischemic Lesions On the Occurrence of Delirium after Transcatheter Aortic Valve Implantation1329Heart T2* assessment to measure iron overload using different software tools in patients with Thalassemia Major1332Hypertrabeculated Left Ventricle at Cardiac Magnetic Resonance Imaging: β-Thalassemia Major vs. Left Ventricular Non -Compaction Disease1335Aortic Regurgitation following Transcatheter Aortic Valve Implantation (TAVI): a CMR Study of two prosthesis designs1336Incremental value of semi-quantitative evaluation of myocardium perfusion with 3T stress cardiac MRI1343Left ventricular morphological quantification with single shot and free-breathing SSFP cine imaging compared with standard breath-hold SSFP cine imaging1344Changes of cardiac iron and function during pregnancy in transfusion-dependent thalassemia patients1346Significant improvement of survival by T2* MRI in thalassemia major1350The impact of trans-catheter aortic valve implantation induced left-bundle branch block on cardiac reverse remodelling1351Value of magnetic resonance myocardial perfusion imaging in patients with indeterminate coronary computed tomography angiography results1353Gender differences in response to Transcatheter Aortic Valve implantation in patients with severe aortic stenosis assessed by feature tracking1354A qualitative assessment of first-pass perfusion bolus timings in the assessment of myocardial ischemia: A magnetic resonance study1355MRI prospective survey on cardiac iron and function and on hepatic iron in non transfusion-dependent thalassemia intermedia patients treated with desferrioxamine or non chelated1358Coronary Calcification Compromises Myocardial Perfusion Irrespective of Luminal Stenosis1359Non–contrast three–dimensional magnetic resonance imaging for pre–procedural assessment of aortic annulus dimensions in patients undergoing transcatheter aortic valve implantation1360“Systolic ventricularization” of the left atrium with bileaflet mitral valve prolapse: impact on quantification of mitral regurgitation1361CMR assessment of left ventricular remodeling 6 months after percutaneous edge-to-edge repair using Mitraclip1363Accuracy of Transthoracic Echocardiography (TTE) in comparison with Cardiac Magnetic Resonance (CMR)1374CMR for myocardial iron overload assessment: a new calibration curve from the MIOT project1381Can Speckle Tracking Imaging Reveal Myocardial Iron Overload in Thalassemia Major? A Combined Echocardiography and Cardiac Magnetic Resonance Study1382Native myocardial T1 mapping in patients with pulmonary hypertension and age matched volunteers1384A Insidious Line Between Thalassemia Intermedia And Left Ventricular Non-Compaction Disease: The Role Of Cardiac Magnetic Resonance1388Pulmonary Artery : Ascending Aorta Diameter - An Important and Easily Measureable Prognostic Parameter1394Novel carotid artery ultrasound index–Extra-media thickness and a well-established cardiac magnetic resonance fat quantification method1403Validation of CMR-derived LVOT diameters against direct in-vivo measurements1409Early myocardial perfusion measured by CMR in acute myocardial infarction treated by primary PCI–a postconditioning study1420Assessment of paravalvular aortic regurgitation after transcatheter aortic valve implantation using cardiac magnetic resonance imaging: a comparative study with echocardiography and angiography1422Left atrial strain measured by feature tracking predicts left ventricular end diastolic filling pressure1426Validation of extracellular volume equation by serial cardiac magnetic resonance imaging measurements in patients with varying hematocrit1427Assessing diastolic function applying Cardiovascular Magnetic Resonance - comparison with the gold standard1475Role of Adenosine Stress Cardiac Mri in the Setting of Chronic Total Occlusion of Coronary Arteries1520Aortic Elasticity Indexes by Magnetic Resonance Predict Progression of Ascending Aorta Dilation1522Combined atrioventricular assessment of diastolic function by cardiac magnetic resonance1537Safety, image quality and clinical utility of cardiac magnetic resonance in patients with antiarrhythmic devices1538Usefulness of cardiac magnetic resonance to predict the need for surgical procedures in patients with mitral regurgitation1550Normal T1, T2, T2* and extracellular volume reference values in healthy volunteers at 3 Tesla cardiac magnetic resonance1551Comprehensive intra-ventricular myocardial deformation strain analysis in healthy volunteers: implications for regional myocardial disease processes1557Elastic properties changes of aorta in patients with dilatation of the ascending aorta evaluated by Magnetic Resonance1558The prevalence of active myocarditis assessed by cardiovascular magnetic resonance in patients with clinically suspected myocarditis1563Quantitative assessment of myocardial scar heterogeneity using texture analysis to risk stratify post–MI patients for ICD insertion1564Gender differences in exercise capacity and LV remodeling in response to pressure overload in aortic stenosis1572Myocardial wall stress as a novel CMR measure to assess cardiac function1573Feature tracking cardiac magnetic resonance to assess LV mechanics in pressure and volume overload1574Safety, feasibility and clinical impact of Cardiovascular Magnetic Resonance in patients with MR-conditional devices1576T1 Mapping at 1-Year Following Aortic Valve Replacement: Baseline Geometry Defines Magnitude of Fibrosis Regression1583Normal values of LV global myocardial mechanics using two and three-dimensional cardiovascular magnetic resonance1585Prediction of infarct transmurality in acute myocardial infarction based on cardiac magnetic resonance deformation analysis1595Measuring invasive blood pressure by catheters guided solely by Cardiovascular Magnetic Resonance by using a new guidewire without the need of a hybrid CMR-fluoroscopy suite1599Influence of active and passive cardiac implants on CMR image quality: results from a consecutive patient series1600Reproducibility of aortic 4D flow measurements in healthy volunteers1601An automatic approach to extract 4D flow hemodynamic markers: application in BAV-affected patients1602Global myocardial mechanics with 2 and 3-Dimensional cardiovascular magnetic resonance feature tracking in patients with myocarditis1603A CMR-based clinician-friendly assessment of in vivo left ventricle hemodynamics1604Reproducibility of left atrial strain using cardiovascular magnetic resonance myocardial feature tracking1605The severity of myocardial infarction in STEMI, determined by transmurality of infarct and infarct characteristics, impacts on myocardial T2 values1606MicroRNA as potential biomarkers of acute myocardial damage following STEMI1607Myocardial blush grade is associated with microvascular obstruction on CMR following STEMI16084D Flow CMR imaging: Comparison of conventional parallel imaging and variable density k-t acceleration1609In-vitro comparison of segmented-gradient-echo versus non-segmented echo planar imaging 4D Flow CMR: validation of flow volume and 3D vortex ring assessment1614Not just 2D but also 4D flow measurements in pulsatile phantom are accurate and reproducible1615Diffusion Tensor Imaging: Comparison of Hypertrophic Cardiomyopathy, Hypertension and Healthy Cohorts1624Impact of myocardial fibrosis measured by cardiac magnetic resonance imaging on reverse left ventricular remodelling after transcatheter aortic valve implantation1625Prosthetic valve regurgitation after transcatheter aortic valve implantation with new-generation devices compared to surgical aortic valve replacement–a cardiac magnetic resonance imaging flow measurement analysis1637Assessment of Aortic and Pulmonary Artery stiffness in Patients with COPD using Cardiac Magnetic Resonance1638Myocardial Mechanics implications using 2D Cardiovascular Magnetic Resonance in Aortic Regurgitation1639Delineation of myocardial infarction & viability by 12 lead ECG vs cardiac magnetic resonance1641Regional variation in native T1 values in normal healthy volunteers?1645Feasibility of myocardial strain assessment using tissue tracking at 3.0T CMR following ST-segment elevation myocardial infarction1648Diagnostic Impact of Cardiac Magnetic Resonance in patients with acute chest pain, troponin elevation and no significant angiographic coronary artery disease". European Heart Journal – Cardiovascular Imaging 17, suppl 1 (maggio 2016): i37—i84. http://dx.doi.org/10.1093/ehjci/jew183.

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Borowiec, Mieczysław, Tetyana Zayarnyuk, Maria Gutowska, Jarosław Więckowski, Andrzej Szewczyk, Vladimir Dyakonov, Eduard Zubov et al. "Magnetic phase transition in KGd(WO4)2 double tungstate". Open Physics 11, n. 3 (1 gennaio 2013). http://dx.doi.org/10.2478/s11534-013-0175-7.

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AbstractInvestigations of the specific heat of the potassium gadolinium double tungstate KGd(WO4)2 have been performed over the temperature range from 0.05 K up to 4 K in zero magnetic field. The λ -type anomaly observed at T = 0.42 K was interpreted as an indication of a second order magnetic phase transition within the Gadolinium sublattice. The critical exponent α was determined from experimental data.

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Kumasaka, Soma, A. Adhipatria P. Kartamihardja, Yuka Kumasaka, Satomi Kameo, Hiroshi Koyama e Yoshito Tsushima. "Anthropogenic gadolinium in the Tone River (Japan): an update showing a 7.7-fold increase from 1996 to 2020". European Radiology Experimental 8, n. 1 (24 maggio 2024). http://dx.doi.org/10.1186/s41747-024-00460-2.

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Abstract Background Anthropogenic gadolinium (Gd), originating from Gd-based contrast agents (GBCAs) used in magnetic resonance imaging (MRI), is widely identified in the aquatic environment with concerns about toxicity and accumulation. We aimed to present new data on anthropogenic Gd in the Tone River, which has the largest drainage area in Japan, and then to compare the current data with those obtained in 1996. Methods The water samples were collected on August 9−10, 2020, at 15 different locations of the Tone River in Japan. The concentrations of the rare earth elements (REEs) were measured by inductively coupled plasma-mass spectrometry and normalized to Post-Archean Australian Shale to construct shale-normalized REE patterns. The degree of Gd-anomaly was defined as the percentage of anthropogenic Gd to the geogenic background and used to compare the water samples from different locations. Pearson’s correlation coefficients were calculated. Results All the samples displayed positive Gd anomalies. The Gd-anomaly ranged from 121 to 6,545% and displayed a repeating decrease-and-increase trend. The Gd-anomaly showed strong positive correlations to the number of hospitals (r = 0.88; p < 0.001) and their MRI units (r = 0.89; p < 0.001). Conclusions Our study revealed notable anomalies of Gd concentrations in river water in Japan, with strong positive correlations to the number of major hospitals and their MRI units. Compared with the previous report in 2000, the Gd-anomaly in Tone River increased from 851% (sampled in 1996) to 6,545%, i.e., 7.7 times, reflecting the increased use of GBCAs in hospitals. Relevance statement Notable Gd concentration anomalies in river water in Japan were observed. This result underlines the importance of more extensive research on anthropogenic gadolinium, and investigations of risks to human health as well as the development of effective removal technologies may be necessary. Key points • All water samples from Tone River displayed positive Gd anomalies. • The Gd anomalies increased to 7.7 times higher over the past 24 years. • Correlations between Gd values and the number of hospitals and MRI units were observed. Graphical Abstract

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Sun, Zhaochen, Tao Chen, Xuefeng Zhu, Jie Geng, Chaofan Sui, Nan Zhang e Lingfei Guo. "Case report of retroperitoneal ectopic pancreas with adrenal adenoma". Frontiers in Surgery 9 (7 settembre 2022). http://dx.doi.org/10.3389/fsurg.2022.935211.

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BackgroundEctopic pancreas is a congenital anomaly in which pancreatic tissue is anatomically separated from the main gland and without vascular or ductal continuity. A case of retroperitoneal ectopic pancreas with adrenal adenoma has never yet been reported.Case PresentationA 54-year-old man presented three masses in the left retroperitoneum, and two of them were resected. The pathologic findings were a retroperitoneal ectopic pancreas with adrenal adenoma.ConclusionWe report an extremely rare case of a retroperitoneal ectopic pancreas and its characterization with dynamic gadolinium-enhanced magnetic resonance imaging (MRI).

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Hirata, Takeru, Satoru Miyawaki, Satoshi Koizumi, Yu Teranishi, Osamu Ishikawa e Nobuhito Saito. "Spontaneous regression of a symptomatic developmental venous anomaly with capillary stain". Interventional Neuroradiology, 4 agosto 2021, 159101992110324. http://dx.doi.org/10.1177/15910199211032470.

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Background Developmental venous anomalies are considered benign lesions; however, they can become symptomatic. A capillary stain, which is an atypical angiographical feature of developmental venous anomalies, is reported to be relevant to symptomatic developmental venous anomalies. Case description A 20-year-old man with no pertinent medical history had an epileptic seizure. Magnetic resonance imaging showed severe focal oedema and gadolinium contrast enhancement in the right precentral gyrus and inferior frontal gyrus adjacent to the Sylvian fissure, indicating venous congestion; these presentations had not been observed on magnetic resonance imaging 8 months before. Digital subtraction angiography revealed a developmental venous anomaly with capillary stain. After conservative treatment, the brain oedema resolved spontaneously and contrast enhancement of the lesion reduced significantly. Conclusion We report a rare case of a symptomatic developmental venous anomaly with unique radiological characteristics and its natural and clinical evolution. Despite the presence of a capillary stain, our patient exhibited temporary exacerbations and spontaneous regression, suggesting that the capillary stain was associated with a reversible condition. This is the first report to detail the spatiotemporal changes of a developmental venous anomaly with capillary stain through imaging, suggesting that regular follow-up imaging is warranted in the management of patients with developmental venous anomalies.

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Aly, Safwat, Mike Seed, Shi-Joon Yoo, Christopher Lam e Lars Grosse-Wortmann. "Myocardial Fibrosis in Pediatric Patients With Ebstein’s Anomaly". Circulation: Cardiovascular Imaging 14, n. 3 (marzo 2021). http://dx.doi.org/10.1161/circimaging.120.011136.

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Background: Left ventricular dysfunction in Ebstein’s anomaly (EA) is associated with higher mortality. The health of the left ventricular myocardium in children and adolescents with EA has not been investigated in detail. Methods: Patients with unrepaired EA who had undergone cardiac magnetic resonance imaging including T1 mapping were retrospectively reviewed. Patients were compared with age- and sex-matched controls. EA severity index was calculated using volumetric measurements at end diastole ([right atrial+atrialized right ventricular volumes]/[functional right ventricular+left atrial+left ventricular volumes]). Global circumferential and radial strain and as well as strain rate were examined using cardiac magnetic resonance feature tracking. Results: Twelve EA patients and an equal number of controls were included. Functional and atrialized right ventricular end-diastolic volumes were 84±15 and 21±13 mL/m 2 , respectively. Late gadolinium enhancement, confined to the right ventricle, was found in 2 patients (16%). Left ventricular native T1 values and extracellular volume fractions were higher in patients compared with controls (1026±47 versus 956±40 ms, P =0.0004 and 28.5±3.4% versus 22.5±2.6%, P <0.001, respectively). Native T1 times correlated inversely with patients’ age, body surface area, and O 2 saturations (r=−0.63, −0.62, and −0.91, respectively; P =0.02, P =0.02, and P <0.0001, respectively). EA severity index ranged between 0.15 and 0.94 and correlated with T1 values (r=0.76, P =0.003). Native T1 correlated with global circumferential strain (r=0.58, P =0.04) but not ejection fraction (EF). EA patients had reduced maximum oxygen uptake (V o 2 max). V o 2 max correlated inversely with T1 values (r=−0.79, P =0.01). Conclusions: Children and adolescents with EA experience an abnormal degree of diffuse myocardial fibrosis. Its association with O 2 saturation points toward a role of hypoxemia in the pathogenesis of fibrosis. Larger and prospective studies are needed to evaluate the value of T1 mapping for risk stratification and monitoring in EA.

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Fernandez-Badillo, Valente, Javier Serrano-Roman, Neftali Eduardo Antonio-Villa, Aldo Cabello-Ganem, Adrian Espejel-Guzman, Laura Victoria Torres-Araujo, Alberto Aranda-Fraustro et al. "Assessment of Left Ventricular Myocardial Fibrosis in Adult Patients With Ebstein Anomaly: A Retrospective Cohort Study Based on Cardiac Magnetic Resonance and Histopathological Samples". Circulation: Cardiovascular Imaging, 8 maggio 2023. http://dx.doi.org/10.1161/circimaging.122.015011.

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BACKGROUND: The association between Ebstein anomaly and myocardial fibrosis, particularly in the left ventricle, has been controversial. We aimed to assess the prevalence of replacement fibrosis with a focus on the left ventricle (LV) using cardiac magnetic resonance (CMR), make a histopathological association between LV fibrosis and CMR findings, and explore whether LV fibrosis is an independent risk factor for cardiovascular disease mortality using a derived risk score. METHODS: We performed a 12-year (2009–2021) retrospective cohort of adult patients with Ebstein anomaly who underwent CMR. The CMR evaluation included a comprehensive assessment of myocardial fibrosis by late gadolinium enhancement (LGE). Four postmortem samples were obtained from our cohort and stained using Masson trichrome to characterize LV fibrosis. We used Cox-regression analysis to identify and derive a prediction score that associated LV fibrosis with cardiovascular disease mortality. RESULTS: We included 57 adults with Ebstein anomaly (52% men; median age, 29.52 [interquartile range, 21.24–39.17] years), of whom 12 died during follow-up. LGE prevalence by CMR was observed in 52.6% in any chamber; LV-LGE in 29.8%. Histopathological findings revealed a mid-wall pattern with predominantly interstitial fibrosis and minimal replacement fibrosis. LV-LGE was associated with increased risk of cardiovascular disease mortality (hazard ratio, 6.02 [95% CI, 1.22–19.91]) attributable to lateral and mid-wall LV segment involvement. Our mortality score achieved an overall good prediction capacity (R 2 , 0.435; C statistic, 0.93; D xy , 0.86). CONCLUSIONS: There is a high prevalence of LV fibrosis replacement in adults with Ebstein anomaly, characterized by specific CMR and histological patterns. Furthermore, LV-LGE fibrosis is an independent predictor of cardiovascular disease mortality, which could be integrated into risk assessment in clinical management.

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Abreu, Ana Elisa Silva, Jacinta Enzweiler, Sueli Yoshinaga-Pereira, Osvaldo Jorge Brito Rupias, Adriana Marques, Miriam Gonçalves Miguel e Joana de Miranda Alencar. "Anthropogenic Gadolinium Anomalies in an Alluvial Plain with On-site Wastewater Treatment Systems in Campinas, SP, Brazil". Geochimica Brasiliensis 38 (21 maggio 2024). http://dx.doi.org/10.21715/gb2358-2812.202438001.

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Gadolinium anomalies have become a well-established marker for the pollution caused by wastewater, but there is not yet a standardized method to estimate the anomaly. Here, we compare four different published equations, distinct threshold values and reference normalizing values to estimate Gd anomalies by applying them to the results of a hydrochemical investigation in an alluvial aquifer with on-site sanitation systems. We measured traditional wastewater markers (such as electric conductivity, NO3_N, NH4–N, Cl-) and REE in groundwater samples collected from hand-dug wells in two seasons. The ratios of Gd normalized measured concentrations to Gd normalized geogenic concentrations (GdSN/Gd*) estimated with the various methods ranged from 0.7 to 2.8. It turned out that the choice of the equation and the threshold value can affect the decisions about anthropogenic pollution’s occurrence (or not). The normalizing values did not play a significant role in the decision. Based on measurement uncertainties and on the interpretation of hydrogeological conditions in the study area, a threshold value of 1.3 for defining anthropogenic Gd anomalies was deemed adequate for the study area. The occurrence of Gd anomalies higher than 1.8 in two wells, one in each season, reinforces the hypothesis that the groundwater is contaminated by the on-site sanitation systems in the study area, as intermittent detection of anthropogenic Gd is a characteristic of this pollution source.

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Radke, R. M., M. Bietenbeck, C. Meier, S. Orwat, H. Baumgartner e A. Yilmaz. "P608Exercise testing and multi-parametric CMR assessment in patients with Ebstein anomaly". European Heart Journal 40, Supplement_1 (1 ottobre 2019). http://dx.doi.org/10.1093/eurheartj/ehz747.0217.

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Abstract Background Ebstein anomaly (EA) is a rare congenital heart disease characterized by an apically displaced tricuspid valve. It is associated with tricuspid valve regurgitation and right heart dilatation leading to significant morbidity. While echocardiography remains the mainstay of routine outpatient cardiac imaging, assessment of right ventricular (RV) anatomy and function is still challenging. Cardiovascular magnetic resonance imaging (CMR) has been shown to be of advantage in these patients being free from acoustic window limitations and offering superior volume quantification. In the present study, parameters obtained from cardiopulmonary exercise testing (CPET) were compared to conventional and novel CMR parameters in patients with EA. Methods In this prospective single centre study, N=17 patients with EA (mean age = 33.8±12.7yrs; N=10 females) underwent clinical assessment, CPET and multi-parametric CMR. Maximal work load (maxWL) and peak oxygen uptake (maxO2) were derived from CPET. CMR studies were performed on a 1.5-T Philips scanner and respective CMR parameters comprised a) anatomical, b) functional and c) myocardial deformation values of both ventricles. Results The majority of patients presented in NYHA class I or II (mean NYHA = 1.6±0.7) and with normal or mildly elevated NT-proBNP values (mean NT-proBNP = 189±158pg/ml). CPET-based maxWL was 147.14±55 watts and maxO2 19.32±5 ml/kg/min. CMR-based mean LVEF was 57.1±6.4% and RVEF was 46.5±11.1%, respectively. Deformation imaging revealed (amongst others) a LV global longitudinal strain (LV-gLS) of −13.7±3.0 and a RV global longitudinal strain (RV-gLS) of −14.7±5.0. Non-ischemic presence of late-gadolinium-enhancement was documented in 36% of our patients. Comprehensive correlation analysis revealed a substantial correlation a) between LV-gLS and NYHA class (r=0.64, p=0.01), but not between RV-gLS and NYHA class (r=0.19, p=0.46), b) between serum NT-proBNP levels and maxO2 (r=−0.53, p=0.03) as well as maxWL (r=−0.63, p=0.02), and c) between LV-EF and LV-gLS (r=−0.64, p=0.01). Conclusion Our preliminary data suggest that serum markers such as NT-proBNP and novel CMR parameters such as LV-gLS – but not RV-gLS - correlate with CPET-derived exercise parameters in patients with EA. The predictive value of these parameters regarding cardiac disease progression in EA has to be evaluated in future follow-up studies.

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Veerappan, S., S. Moharem-Elgamal, J. Luszczak, N. Manghat, S. Lyen e R. Bedair. "P263 Paradoxical embolus causing myocardial infarction in a young adult with congenital heart disease". European Heart Journal - Cardiovascular Imaging 21, Supplement_1 (1 gennaio 2020). http://dx.doi.org/10.1093/ehjci/jez319.123.

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Abstract Case Report A 17 year old girl presented to her local hospital 24 hours after the onset of severe central chest pain that lasted for 30 minutes and spontaneously resolved. Her congenital heart disease background was of Ebstein’s anomaly of the tricuspid valve, coarctation of the aorta and ventricular septal defect (VSD). She underwent surgical repair of the coarctation and PA band at two months of age, followed by VSD closure when she was a year old.. An atrial communication was deliberately left open at the time of this operation and she had a known residual VSD and mild tricuspid regurgitation. Her resting saturations were 97% in air . On admission, she had a significantly raised Troponin T of 24,000ng/L with no significant ST segment elevation. An echocardiogram demonstrated new left ventricular (LV) systolic impairment with an ejection fraction of 33%. She underwent a ‘triple rule out’ cardiac CT scan and subsequently a cardiac MRI. On retrospective review, the CT demonstrated a sizeable atrial communication with left to right shunt, focal tight mid left anterior descending (LAD) artery stenosis aftersecond diagonal branch with mid to apical anterior and anteroseptal hypoperfusion. The MRI demonstrated extensive full thickness late gadolinium enhancement in mid to apical septum extending to the apical cap and apical inferior segment with microvascular obstruction (MVO) in the mid septum with possible VSD patch breakdown. No thrombi was notes on the gadolinium enhancement images. She was transferred to our hospital and underwent an invasive coronary angiogram that demonstrated recanalization of her coronary artery. She remained haemodynamically well throughout the admission. Anticoagulation with a direct acting oral anticoagulant (DOAC) was started alongside ACE-I and Beta blocker therapy. Discharge transthoracic echocardiogram showed flow across the atrial septum, a small residual VSD and mild LV dysfunction with akinesia of mid-to-distal LAD territory and very good function of remaining LV segments. She was discharged home with a plan for elective outpatient admission for a closure of her interatrial communication in a few months once she has recovered. Figure 1 summarises the key aspects of the multimodality imaging in this patient. Discussion Coronary embolus is the underlying cause of 3% of acute coronary syndromes with a small proportion being from a paradoxical embolus from the venous circulation through a right to left shunt across an atrial communication. Ebstein’s anomaly is a rare disorder, accounting for <1% of all congenital heart defects. Right-to-left shunt across the atrial communication is common in this condition due to RA dilatation and increased RA pressures secondary to tricuspid regurgitation. Our case illustrates the importance of having a high index of suspicion in patients with congenital heart disease for this rare complication of paradoxical coronary embolus, especially given the significant morbidity. Abstract P263 Figure 1

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Jappar, I. A., T. T. Naing, A. Schumacher-Maurer, T. Vineet e H. C. Tang. "P1499 A case of missing left ventricular apex". European Heart Journal - Cardiovascular Imaging 21, Supplement_1 (1 gennaio 2020). http://dx.doi.org/10.1093/ehjci/jez319.923.

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Abstract Introduction Isolated left ventricle (LV) apical hypoplasia is a rare congenital anomaly. Echocardiographic diagnosis is challenging if one is not aware of this condition. It can masquerade as LV non-compaction or apical aneurysm. Multimodality imaging with cardiac magnetic resonance (CMR) can be useful to secure the diagnosis. Case description An asymptomatic 18-year-old man, with no significant personal or family medical history, was referred to cardiology clinic due to abnormal electrocardiogram (ECG) during routine cardiac screening. ECG showed right axis deviation and delayed precordial QRS-transition. He had excellent effort tolerance during treadmill exercise test (standard Bruce Protocol stage 6). Ambulatory ECG monitoring was within normal limits. Transthoracic echocardiogram showed a truncated appearance of LV apex with increased apical trabeculation, and bulging right ventricle apex (see image A and B). LV ejection fraction was preserved. The LV appearance was initially thought to be due to foreshortened apical view. A diagnosis of LV non-compaction cardiomyopathy was also inaccurately considered. He was further evaluated with CMR imaging. The study showed a truncated LV apex and apical insertion of the papillary muscles. RV apex was seen wrapping around the LV (see image C and D). Both the LV and RV function were normal. There was no late gadolinium enhancement (LGE). The morphological abnormalities were consistent with the diagnosis of isolated LV apical hypoplasia. Patient continued to be physically active and asymptomatic. Follow up CMR five years later showed similar findings of preserved biventricular functions and no fibrosis on LGE imaging. Discussion We described a rare case of isolated LV apical hypoplasia with longitudinal clinical and cardiac imaging follow up. Initial diagnosis from transthoracic echocardiogram was elusive, and supportive findings from CMR helped to secure the diagnosis. In the literature, the clinical presentation ranges from chest pain syndrome, arrhythmias, heart failure or as incidental finding during cardiac imaging, as in our case. It is commonly diagnosed as nonspecific cardiomyopathy when the clinician is not aware of this condition. Being a rare congenital anomaly, the prognosis is not well established. Our patient remained asymptomatic clinically with preserved biventricular function in his 5 years follow-up. Abstract P1499 Figure. Echo and CMR imaging

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Antonio-Villa, N. E., N. Espinola-Zavaleta, V. Fernandez-Badillo, J. Serrano-Roman, A. Aranda-Fraustro, A. Espejel-Guzman, A. Cabello-Ganem et al. "Assessment of left ventricular myocardial fibrosis in adult patients with Ebstein's anomaly: a retrospective cohort study based on cardiac magnetic resonance and histopathological samples". European Heart Journal 44, Supplement_2 (novembre 2023). http://dx.doi.org/10.1093/eurheartj/ehad655.1909.

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Abstract Background The relationship between Ebstein's Anomaly (EA) and myocardial fibrosis in the left ventricle (LV) has been debated. This study aimed to determine the prevalence of replacement fibrosis in the LV using cardiac magnetic resonance (CMR) imaging and correlate it with histopathological findings. The study also investigated whether LV fibrosis is an independent risk factor for cardiovascular disease (CVD) mortality and developed a risk score for this purpose. Methods We performed a twelve-years (2009-2021) retrospective cohort study of adult patients with EA who underwent CMR. The CMR evaluation included a comprehensive assessment of myocardial fibrosis by late gadolinium enhancement (LGE). Four post-mortem samples were obtained from our cohort and stained using Masson trichrome to characterize LV-fibrosis. We used Cox-Regression analysis to identify and derive a prediction score that associates LV-fibrosis with CVD-mortality. Results We included 57 adults with EA (52% male, median age 29.52, IQR: 21.24-39.17 years). LGE prevalence by CMR was observed in 52.6% (95% CI: 39.9%-66.0%) in any chamber; LGE-LV in 29.8% (95% CI: 19.5%-42.7%). Histopathological findings revealed a mid-wall pattern with predominantly interstitial fibrosis and minimal replacement fibrosis. LV-fibrosis was associated with increased risk for CVD mortality (HR: 6.02, 95% CI: 1.22-19.91) attributable to lateral and mid-wall LV segment involvement. Our mortality score achieved an overall good prediction capacity (C-statistic: 0.93, Dxy= 0.86). Conclusions There is a high prevalence of replacement LV fibrosis in adults with EA, characterized by specific CMR and histological patterns. Furthermore, LV fibrosis is an independent predictor of CVD mortality, which could be integrated into a risk assessment in clinical management.Figure 1.CMR and pathological imagesFigure 1.Kaplan-Meier analysis

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Veeratterapillay, Kuldeepa, Caroline J. Coats, Ruairidh Martin, Bill Chaudhry e Louise Coats. "A Case Report of Complex Congenital Heart Disease Co-existing with Hypertrophic Cardiomyopathy". European Heart Journal - Case Reports, 23 gennaio 2024. http://dx.doi.org/10.1093/ehjcr/ytae038.

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Abstract Background Myocardial abnormalities are sometimes overlooked in congenital heart disease (CHD). The co-existence of hypertrophic cardiomyopathy is so uncommon that it is assumed to be a coincidence rather than an association. Case summary A 24-year-old gentleman, who was previously clinically well following a staged Fontan palliation for single ventricle CHD, was transferred to our centre following an out of hospital cardiac arrest. He had return of spontaneous circulation after a period of cardiopulmonary resuscitation. Initial electrocardiogram showed sinus bradycardia. Computed tomography pulmonary angiography ruled out pulmonary embolism. Transthoracic echocardiography and cardiac magnetic resonance (CMR) demonstrated marked ventricular hypertrophy with no left ventricular outflow tract obstruction. Punctate areas of late gadolinium enhancement were noted in the basal septum and T1 values were consistent with fibrosis. Cardiac catheterisation demonstrated low Fontan pressures and normal coronaries. Ventricular tachycardia rapidly degenerating into ventricular fibrillation was induced during electrophysiological studies. Genetic testing demonstrated a pathogenic cardiac myosin-binding protein C variant consistent with co-existent hypertrophic cardiomyopathy. Bisoprolol was initiated and a subcutaneous implantable cardiac defibrillator implanted four weeks after his initial presentation. Two years on, he remains well with no therapies from his defibrillator. As well as Fontan surveillance, cascade testing, exercise prescription and pre-conception counselling were addressed during follow-up. Discussion In CHD, ventricular hypertrophy may relate to congenital or acquired systemic outflow tract obstruction. Contemporary CMR techniques combined with genetic testing can be useful in differentiating between hypertrophy caused by congenital anomaly versus concurrent cardiomyopathies. Multi-disciplinary expertise is critical for accurate diagnosis and optimal care.

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Landi, Doriana, Francesca Bovis, Alfonso Grimaldi, Pietro Osvaldo Annovazzi, Antonio Bertolotto, Alessia Bianchi, Giovanna Borriello et al. "Exposure to natalizumab throughout pregnancy: effectiveness and safety in an Italian cohort of women with multiple sclerosis". Journal of Neurology, Neurosurgery & Psychiatry, 30 settembre 2022, jnnp—2022–329657. http://dx.doi.org/10.1136/jnnp-2022-329657.

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ObjectiveAssessing the risk of clinical and radiological reactivation during pregnancy and post partum in women with multiple sclerosis (MS) treated with natalizumab (NTZ) throughout pregnancy (LONG_EXP) compared with women interrupting treatment before (NO_EXP) and within >−30 days and ≤90 days from conception (SHORT_EXP), and describing newborns’ outcomes.MethodsMaternal clinical and radiological outcomes and obstetric and fetal outcomes were retrospectively collected and compared among groups (NO_EXP, SHORT_EXP, LONG_EXP). Predictors of clinical and radiological reactivation were investigated through univariable and multivariable analysis.Results170 eligible pregnancies from 163 women referring to 29 Italian MS centres were included. Annualised relapse rate (ARR) was significantly lower in LONG_EXP (n=66, 0.02 (0.001–0.09)) compared with NO_EXP (n=31, 0.43 (0.21–0.75), p=0.002) and SHORT_EXP (n=73, 0.46 (0.30–0.66), p=0.0004) during pregnancy, and in LONG_EXP (0.12 (0.05–0.24)) compared with SHORT_EXP (0.30 (0.17–0.50), p=0.008) during post partum. Gadolinium-enhancing (Gd+) lesions were less frequent in LONG_EXP (n=6/50, 2.00%) compared with NO_EXP (n=9/21, 42.86%) and SHORT_EXP after delivery (n=17/49, 34.69%, p=0.010).Delaying NTZ resumption after delivery significantly increased the risk of relapses (OR=1.29 (95% CI 1.07 to 1.57), p=0.009) and Gd+ lesions (OR=1.49 (95% CI 1.17 to 1.89, p=0.001). Newborns’ weight, length, head circumference and gestational age did not differ among groups after adjusting for confounders. Anaemia was tracked in 4/69 LONG_EXP newborns. Congenital anomaly rate was within the expected range for the untreated MS population.ConclusionsOur findings indicate that in women with MS treated with NTZ before conception, continuation of NTZ throughout pregnancy and its early resumption after delivery mitigate the risk of clinical and radiological reactivation. This approach has no major impact on newborns’ outcomes.

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Ashwath, Ravi, e Deepa Prasad. "Non‐invasive evaluation of anomalous aortic origin of coronary arteries and surgical management". FASEB Journal 30, S1 (aprile 2016). http://dx.doi.org/10.1096/fasebj.30.1_supplement.230.1.

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Advances in imaging of the coronary arteries allow more detailed and accurate information to be assessed to detect anomalies that might prevent a young athlete dying on the field. Normal coronary anatomy includes origin of left coronary artery from left sinus of Valsava, which then divides into left anterior descending artery and left circumflex coronary artery and origin of right coronary artery from the right sinus. Anomalous aortic origin of coronary arteries (AAOCA) is when the coronary arteries arise from opposite sinus or wrong sinus or as single right or left coronary artery. AAOCA is rare with an incidence of about 0.2%. However, it is the second most common cause of sudden cardiac death in young athletes.Most patients are asymptomatic and sudden death could be the initial presentation, which is provoked by myocardial ischemia leading to myocardial infarction and lethal arrhythmia's. The pathological mechanisms attributed to the coronary compression include, intramural/interarterial course, slit‐like orifice, acute angle take‐off, hypoplastic coronary arteries and coronary artery dominance. Anomalous left coronary artery from right sinus is thought to carry a higher risk of sudden death than anomalous right coronary artery.Echocardiography is a useful tool in the initial evaluation of AAOCA but generally needs to be complemented and confirmed by advanced imaging such as computed tomographic angiography (CTA) or magnetic resonance imaging (MRI). The intramural and interarterial course can be easily determined by CTA and in most cases by MRI. A slit like orifice can be visualized by CTA, however with technological advancements in CT, it is possible to obtain dynamic images of the coronary artery origin, which has enabled us to determine the slit like orifice more accurately. MRI has enabled us to identify myocardial viability by using stress perfusion and late Gadolinium enhancement imaging.Accurate delineation of the coronary anatomy and viability is important in the decision making for management and pre‐operative evaluation. There are various surgical options depending on the type of coronary anomaly and presence of additional risk factors.Support or Funding InformationDeepa Prasad M.D. is funded by AAA

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Dalal, Siddharth, Gaurav Kapoor e Elliot Salamon. "Abstract Number: LBA15 Transient Ischemic Attack Uncovering An Absent ICA". Stroke: Vascular and Interventional Neurology 3, S1 (marzo 2023). http://dx.doi.org/10.1161/svin.03.suppl_1.lba15.

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Introduction Absence of the Internal Carotid Artery (ICA) is a rare cerebrovascular anomaly signified by agenesis, aplasia, or hypoplasia of the ICA and its’ bony canal. Agenesis refers to complete absence whereas aplasia refers to some partial remanent of the ICA or the carotid canal however, these terms are often used interchangeably. There are 6 types of ICA agenesis/aplasia of which type A consists of collateral flow supplied to the MCA via the P‐comm and ACA via the A‐comm. The prevalence of such a condition is reported at around .01% of the population. Patients are usually asymptomatic due to robust collaterals but, in some cases, can present with focal neurologic deficits. Here, we present a case of a patient who endured a transient ischemic attack and was subsequently found to have type A Right ICA aplasia on cerebrovascular imaging. Methods Case Report Results A 24‐year‐old Right‐handed Female with no past medical history except for tobacco use presented with transient left arm monoparesis. The patient had received chiropractic treatment involving hyperextension of her neck to the left just prior to symptom onset which transiently caused her left arm to become plegic and she resolved back to her neurologic baseline within 10 minutes. Neurologic exam was normal and non‐contrast head CT was negative however, demonstrated significant hypoplasia of the right carotid canal (Figure 1‐A). Contrast enhanced CT Angiogram of the head and neck demonstrated lack of contrast opacification of the Right Internal Carotid artery with absent Right carotid bulb and opacification of only the Right ECA (Figure 1‐B). MRI of the brain did not demonstrate any acute infarction. Gadolinium enhanced MRA of the Head and Neck confirmed absence of the Right internal carotid (Figure 2‐A) with prominent Right P‐comm and absent Right A1 segment (Figure 2‐B). Due to this variant anatomy, the postulated mechanism of patient’s TIA was thought to be related to transiently decreased cerebral perfusion caused by partial mechanical compression of her vertebral arteries asymmetrically affecting the Right MCA distribution due to sole supply from the Right posterior communicating artery. Conclusions This case illustrates a fascinating variation from normal embryologic angiogenesis and highlights the importance of collateral blood flow through the circle of Willis in patient’s with congenitally absent internal carotid arteries. Particularly, this patient’s presentation demonstrates the risk that vascular compromise of posterior circulation vessels may play in patients with Type A ICA agenesis/aplasia and their subsequent risk of incurring transient ischemic events.

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Admin - JAIM. "Résumés des conférences JRANF 2021". Journal Africain d'Imagerie Médicale (J Afr Imag Méd). Journal Officiel de la Société de Radiologie d’Afrique Noire Francophone (SRANF). 13, n. 3 (17 novembre 2021). http://dx.doi.org/10.55715/jaim.v13i3.240.

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able des matières Résumés. 140 Agenda Formation en Radioprotection JRANF 2021 Ouagadougou. 140 RPF 1 Rappel des unités de doses. 140 RPF 2 Risques déterministes et stochastiques. 140 RPF 3 Mesure pratique des niveaux d’exposition en RX et. 140 RPF 4 Niveaux comparés de doses observés en radiologie diagnostique et interventionnelle, échelle de risques comparés. 140 RPF 5 Rappel des principes de la radioprotection: justification des actes et optimisation. 140 RPF 6 Méthodes d’optimisation en radiologie conventionnelle. 140 RPF 7 Méthodes d’optimisation en tomodensitométrie. 140 RPF 8 Cas particuliers de la femme enceinte, de l’enfant et de la radiologie interventionnelle. 141 RPF 9 Guidelines et Justification des actes en pratique courante. 141 RPF 10 Mission et rôle des PCR dans les services d’imagerie. 141 RPF 11 Notion des NRD et mise en œuvre des NRD en Afrique. 141 FORMATION DES : EPU, CONFERENCES ET ATELIERS. 142 IMAGERIE DE L’HYDROCEPHALIE CHRONIQUE DE L’ADULTE AFRICAIN.. 142 IRM CARDIAQUE. 142 FAISABILITE EN AFRIQUE, INDICATIONS, TECHNIQUE ET RESULTATS. 142 COROSCANNER. 142 FAISABILITE EN AFRIQUE, INDICATIONS, TECHNIQUE ET RESULTATS. 142 SCANNER DE PERFUSION : ENJEUX ET PERSPECTIVES. 143 L'IMAGERIE POSTMORTEM COMME ALTERNATIVE FACE AUX DE RESISTANCES SOCIALES A L'AUTOPSIE 144 INTELLIGENCE ARTIFICIELLE ET IMAGERIE MEDICALE. 144 RADIOLOGIE INTERVENTIONNELLE DU RACHIS : INFILTRATION, BIOPSIE DISCO VERTEBRALE, CIMENTOPLASTIE 144 ECHOGRAPHIE TRANSFRONTANELLAIRE / COMMENT JE LA REALISE ET QUOI RECHERCHER. 145 ATELIER SUR L’IMAGERIE DU ROCHER. 145 CLASSIFICATION O-RADS DES MASSES ANNEXIELLES A L’ECHOGRAPHIE ET A L’IRM... 146 MALFORMATIONS CEREBRALES EN ECHOGRAPHIE ANTENATALE. 146 OCCLUSIONS INTESTINALES DU GRELE DE L’ADULTE. 147 IMAGERIE DES URGENCES TRAUMATIQUES ABDOMINALES. 147 IMAGERIE DES APPENDICITES AIGUES. 148 IMAGERIE DU FOIE ET DES VOIES BILIAIRES. 148 IMAGERIE DES INFECTIONS URINAIRES DE L’ENFANT. 149 IMAGERIE DE LA PATHOLOGIE DES VOIES BILIAIRES. 149 IMAGERIE DE LA PANCREATITE AIGUE. 150 HYPERDENSITE EN VERRE DEPOLI : LESION ELEMENTAIRE TDM DOMINANTE DANS LA PNEUMOPATHIE A COVID 19 MAIS AUSSI DANS D’AUTRES AFFECTIONS. 150 PRESENTATION 2IMEDS SARL. 150 COMMUNICATIONS ORALES. 152 CO.01 : Aspects radiologiques des séquelles de tuberculose pulmonaire de l’adulte à Conakry. 152 CO.02 : Séroprévalence du virus de l’hépatite virale B dans la cohorte des PVVIH suivis dans le service des maladies infectieuses du CHU YO.. 152 CO.03 : Evaluation de la qualité des traitements endodontiques réalisés au Centre Municipal de Santé Bucco-Dentaire de Ouagadougou. 153 CO.04 : Facteurs limitant la prévention de la carie dentaire au niveau des prestataires de soins du premier échelon : enquête au district sanitaire de Dô, Burkina Faso. 153 CO.05 : Profils clinique, diagnostique des patients hospitalisés dans le service de rhumatologie du Centre Hospitalier Universitaire de Bogodogo. 154 CO.06 : Morbidité et mortalité des nouveau-nés réanimés en salle de naissance au Centre Hospitalier Universitaire Régional de Ouahigouya (Burkina Faso). 154 CO.07 : Apport de l’imagerie dans le diagnostic et les facteurs étiologiques de la lithiase urinaire chez l’adulte 155 CO.08 : Les profils de la déficience visuelle au Centre Hospitalier Universitaire Yalgado Ouédraogo : à propos de 501 cas 156 CO.09 : Pression intra-oculaire chez les enfants mélanodermes examinés sous anesthésie générale au Centre Hospitalier Universitaire Yalgado Ouédraogo. 156 CO.10 : Anomalie de la jonction pyélo-uretérale : Aspects diagnostique et thérapeutique au Centre Hospitalier Universitaire SOURO SANOU.. 156 CO.11 : Prise en charge de l’uretère rétro-cave au Centre Hospitalier Universitaire SOURO SANOU : à propos de deux observations. 157 CO.12 : Carcinome occulte de la thyroïde révèle par une métastase fronto-pariétale : à propos d’un cas. 157 CO.13 : Les suppurations rénales et péri rénales au Centre Hospitalier Universitaire SOURO SANOU de Bobo-Dioulasso : aspects diagnostiques et thérapeutiques. 158 CO.14 : Tumeur mixte épithéliale et stromale du rein chez un patient hémodialysé chronique. 158 CO.15 : Facteurs limitant la réalisation de la charge virale chez les PVVIH à l’hôpital de jour du CHU Yalgado OUEDRAOGO 159 CO.16 : Facteurs prédictifs de la mortalité au cours de la fibrillation atriale : suivi de 256 cas. 159 CO.17 : Le port du sac est-il un facteur associé à la lombalgie chez l’enfant ?. 160 CO.18 : Etude des facteurs de récidive au cours des ténosynovites de De Quervain ?. 160 CO.19 : L’arthropathie tabétique : une affection à ne pas oublier. 161 CO.20 : Fracture du rocher au CHU Yalgado Ouédraogo : à propos de 25 cas. 161 CO.21 : Aspect tomodensimètre des spondylolisthésis ; à propos de 48 cas colligés au CHU de Cocody 162 CO.22 : Amputation de membres dans le service d’Orthopédie - Traumatologie du Centre Hospitalier Universitaire Yalgado Ouédraogo : à propos de 113 cas. 162 CO.23 : Profil scanographique et épidémiologique des fractures maxillo-faciales à l’hôpital Sominé Dolo de Mopti (Mali) 163 CO.24 : Fractures du poignet : aspects épidémiologiques, anatomocliniques et thérapeutiques dans le service d’Orthopédie-Traumatologie du CHU-YO de janvier 2015 à décembre 2018 à propos de 357 cas. 164 CO.25 : Tumeurs autour du genou de l’adulte, aspects épidémiologiques, diagnostiques, thérapeutiques et évolutifs au CHU Yalgado Ouédraogo et à l’hôpital protestant Schiphra. 164 CO.26 : Post traitement en tomodensitométrie thoracique diagnostique et thérapeutique : connaissance et pratique dans les hôpitaux de référence en Côte-d’Ivoire. 165 CO.27 : La sclérose mésiotemporale. 165 CO.28 : Syndrome d’interruption de la tige pituitaire, une cause rare d’hypopituitarisme : à propos d’un cas au CNHU-HKM de Cotonou au Bénin. 165 CO.29 : Indications du scanner cérébral chez les patients présentant un traumatisme crânien léger. 166 CO.30 : Evènements nucléaires en pratique hospitalière à Abidjan : état des lieux et prise en soins. 166 CO.31 : Utérus didelphe imperméable chez une jeune femme hypofertile, à Ouagadougou, Burkina Faso 167 CO.32 : Pseudo kystes du pancréas : aspects épidémiologiques, cliniques, thérapeutiques et évolutifs 167 CO.33 : Point de vue des médecins du Burkina Faso sur la télé expertise mobile en cancérologie. 168 CO.34 : Comparaison des niveaux de référence diagnostiques basés sur l’indication à ceux par région anatomique des scanners des adultes à Yaoundé. 168 CO.35 : Optimisation des doses délivrées au scanner multi barets dans les services de radiologie au Burkina Faso. 169 CO.36 : Développement de la dosimétrie biologique et application à des travailleurs médicaux et aux enfants exposes au scanner. 169 CO.37 : Effets secondaires immédiats des produits de contraste iodés au scanner : une étude effectuée à Abidjan (Côte d'ivoire). 170 CO.38 : Connaissances en radioprotection des travailleurs exposés aux rayonnements ionisants en milieu médical en Afrique Francophone Subsaharienne. 170 CO.39 : Problématique du coût et d’accès au scanner multi-détecteur au Cameroun : une étude mixte séquentielle et explicative. 171 CO.40 : Evaluation des doses administrées aux patients adultes en médecine nucléaire en 2020 au Centre Hospitalier Universitaire Yalgado Ouédraogo. 172 CO.41 : Enquête sur l’application de la prescription raisonnée des examens radiographiques standards : cas des CHU de Lomé (Togo). 172 CO.42 : Evaluation de la satisfaction des médecins de la pratique de la radiologie au Togo. 173 CO.43 : Aspects tomodensitométriques et clinico-épidémiologiques de la pneumopathie COVID-19 au CHME le Luxembourg à Bamako (Mali). 173 CO.44 : Sensibilité du scanner dans le diagnostic de la pneumonie à SARS – COV 2 à propos de 229 cas 174 CO.45 : Aspects TDM thoracique initial des patients suspects de Covid-19. 174 CO.46 : Connaissance et pratique des mesures de protection contre la COVID-19 dans le service d’imagerie médicale du Centre Hospitalier Universitaire Départemental Borgou-Alibori (CHUD/B-A). 175 CO.47 : Contribution diagnostique du scanner multi barrette lors de la première vague de Covid 19 ; expérience de la Polyclinique Internationale de Ouagadougou. 175 CO.48 : Imagerie thoracique et PCR positive au cours de la pneumopathie à Covid 19 du Centre d’Isolement du CHU Bogodogo. 176 CO.49 : Titre : Association entre stade clinique et signes scanographiques de la COVID-19 à Hôpital Gynéco-Obstétrique et Pédiatrique de Douala, Cameroun. 176 CO.50 : Titre : Comparaison des caractéristiques de la tomodensitométrie thoracique chez les femmes enceintes, et non enceintes atteintes de COVID-19 à l’Hôpital Gynéco-Obstétrique et Pédiatrique de Douala, Cameroun 177 CO.51 : Aspects épidémiologiques et orientations étiologiques des hypersignaux T2 de la substance blanche cérébrale à Lomé. 178 CO.52 : Aspects du polygone de Willis à l’IRM 3D TOF dans les AVC ischémiques au CHU d’Angré. 178 CO.53 : Aspects épidémiocliniques et IRM des pathologies sellaires et para sellaires à propos de 38 cas colligés au CHU d’Angré. 179 CO.54: Morphologie du processus styloïde de l’os temporal au scanner à Parakou. 179 CO.55: Apport de l’angioscanner des troncs supraoptiques dans le bilan étiologique des accidents vasculaires cérébraux 180 CO.56 : Evaluation de l’interprétation des scanners encéphaliques en urgence neurologique au CHU d’Angré 180 CO.57 : Infiltrations lombaires sous guidage tomodensitométrique dans la prise en charge de la lombosciatalgie à DAKAR (SENEGAL). 181 CO.58: Apport de l’angioscanner dans le diagnostic des pathologies des troncs supra aortiques : à propos de 96 cas colligés à Abidjan. 182 CO.59: Aspects IRM des compressions médullaires dans la région du GBEKE à propos de 20 cas. 182 CO.60 : Profil remnologique des lésions cérébrales au Togo. 183 CO.61 : Etude radioclinique des AVC au Niger. 183 CO.62 : Evaluation de la gestion des rendez-vous et l’expérience patient au service d’imagerie médicale du CHU d’Angré 184 CO.63 : Intérêt de la scintigraphie rénale à l’acide Diéthylènetriamine-penta-acétique marqué au technétium 99 métastable dans l’exploration des reins muets à l’uroscanner. 184 CO.64: Echographie Doppler des vaisseaux de la tête du nerf optique dans le glaucome primitif à angle ouvert du sujet jeune Togolais à propos de 30 cas. 185 CO.65: Activité tomodensitométrique de garde au Centre Hospitalier Universitaire (CHU) de Cocody- Abidjan (RCI) : à propos de 723 cas colliges. 185 CO.66 : Tuberculose orbitaire : une localisation inhabituelle. 186 CO.67: Embolie pulmonaire : analyse des critères de prescriptions et d’interprétations scanographiques à Abidjan 186 CO.68 : Apport de l’échographie doppler dans le diagnostic et la prise en charge des varicocèles ; à propos de 32 cas 187 CO.69 : Chemodectome de la bifurcation carotidienne : à propos de deux cas. 187 CO.70 : Apport de l’écho doppler pénien dans la stratégie diagnostique des dysfonctions érectiles. 188 CO.71 : Aspects IRM de la non compaction du ventricule gauche (NCVG) : à propos de 3 cas et revue de la littérature 188 CO.72: Audit clinique cible de la prise en charge de l’embolie pulmonaire au Centre Hospitalier Universitaire de Tengandogo (CHUT). 189 CO.73 : Évaluation tomodensitométrique de la maladie thrombo-embolique thoracique au centre d’imagerie médicale du CHU de Treichville : à propos de 93 cas. 189 CO.74 : Titre : Aspects scanographiques de l’origine des troncs supra-aortiques à Ouagadougou. 190 CO.75 : Évaluation de la pertinence des demandes et des protocoles de réalisation d’angioscanner pour embolie pulmonaire à Yaoundé. 190 CO.76 : Echo doppler transcrânien chez les drépanocytaires SS à Niamey : Profil vélocimétrique. 191 CO.77 : Aspects échographiques des manifestations abdominales de la drépanocytose chez l’enfant homozygote SS à Niamey. 192 CO.78 : Thème : Carcinome mammaire papillaire intra-kystique du prolongement axillaire observé à l’hôpital moulins/Yzeure. 193 CO.79 : Aspects radiographiques de la tuberculose pulmonaire chez les enfants infectés par le VIH au CHU Souro Sanou de Bobo-Dioulasso, Burkina Faso. 193 CO.80 : Place de l’échographie dans la prise en charge des pathologies pédiatriques en milieu chirurgical 194 CO.81 : La tomosynthèse combinée à la mammographie standard dans le diagnostic des tumeurs mammaires au Centre Hospitalier SUD FRANCILIEN en 2018. 194 CO.82 : Titre : aspects cliniques radiologiques et histologiques d’un kyste épidermique chez une femme 195 CO.83: Titre : plaie crânio-cérébrale pénétrante par une barre de fer chez un enfant. 196 CO.84: La pratique de l’IRM mammaire à Ouagadougou. 196 CO.85 : L’apport de l’IRM du sein dans les écoulements mamelonnaires. 197 CO.86 : Approche diagnostique en imagerie des cancers rénaux pédiatriques au CHU de Treichville. 197 CO.87 : Imagerie du sein de la femme jeune de moins de 35 ans au CHU de Treichville. 198 CO.88 : Aspects épidémio-clinique et IRM de l’endométriose pelvienne à Abidjan. 198 CO.89 : Cancer du sein au Burkina Faso. Et si la bataille se gagnait avant le bloc opératoire et les salles de chimiothérapie ? 199 CO.90 : Corrélation radio-histologique des lésions mammaires à propos de 140 cas à l’unité de sénologie du service de radiodiagnostic et d’imagerie médicale du CHU de Treichville (Abidjan). 199 CO.91 : Apport de l’échographie transfontanellaire dans le diagnostic des pathologies neurologiques néonatale au CHU de BOGODOGO.. 200 CO.92 : L’hystérosalpingographie (HSG) pathologique en pratique quotidienne. 200 CO.93 : Titre : Apport de l’Échographie dans le diagnostic de circulaire du cordon ombilical 201 CO.94 : Corrélation du score TIRADS et l’histologie des nodules thyroïdiens : étude descriptive et revue de la littérature 201 CO.95 : Profil radiologique, épidémiologique et clinique des traumatismes fermés du thorax au CHU Gabriel Touré 202 CO.96 : Aspects radiographiques des lésions ostéo-articulaires de l’ulcère de Buruli dans les régions du centre de la Côte d’Ivoire. 202 Issa KONATE. 203 Adresse email : ikttata6@gmail.com.. 203 CO.97 : Pathologies ostéoarticulaires au service de radiologie CHU Pédiatrique CH. DE GAULLE de Ouagadougou, à propos de singularités étiologiques. 203 CO.98: Biopsie sous tomodensitométrie des lésions disco vertébrales : à propos de 15 cas au CIMR à Abidjan (Côte-d’Ivoire). 203 CO.99 : Apport de l’imagerie par résonance magnétique dans le diagnostic des pathologies du genou à l’Hôpital Saint Camille de Ouagadougou (HOSCO) à propos de 319 cas. 204 CO.100 : Apport de l’Imagerie par Résonance Magnétique dans l’exploration des pathologies du genou à Ouagadougou 204 CO.101: Apport de l’imagerie par résonance magnétique dans les douleurs du compartiment antérieur du genou : à propos de 84 genoux. 205 CO.102 : Profil IRM de la pathologie traumatique de la colonne cervicale au Togo. 206 CO.103 : Ergonomie de poste et troubles musculo-squelettiques chez les radiologues dans la pratique de l’échographie en Côte -d’Ivoire. 206 CO.104 : Aspects TDM des traumatismes du rachis : à propos de 52 cas. 207 Introduction : 207 Les traumatismes du rachis sont graves, mettant en jeu le pronostic vital et fonctionnel. L’objectif de notre étude était de décrire les aspects TDM des traumatismes du rachis. 207 Patients et méthode : 207 Il s’agit d’une étude prospective, transversale, descriptive sur 18 mois incluant 52 patients avec un âge moyen de 38,54 ans. Les AVP représentaient 51,9% des circonstances de survenue. Nous avons comparé les résultats de la radiographie à ceux de la TDM et confronter le degré de recul du mur postérieur à la TDM à l’existence de signes neurologiques. 207 CO.105 : Caractéristiques céphalométriques d’une population burkinabè. 207 CO.106: Les déviations fronto-axiales du genou : Aspects épidémiologiques, cliniques et radiologiques à propos de 350 cas. 208 CO.107 : Aspects échographiques et tomodensitométriques des cancers du pancréas : à propos de 42 cas au CHU Campus de Lomé. 208 CO.108 : Imagerie des urgences abdominales non traumatiques chez l’adulte : 209 Enquête qualitative auprès des médecins du service des urgences à Limbe. 209 CO 109 : Ponction-aspiration de l’abcès hépatique sous guidage échographique au CHU du point G.. 209 Auteurs: A. KONE, Y. KONE, M. CAMARA, M. KONATE, Y. COULIBALY, A. B. COULIBALY, S. SIDIBE. 209 CO.110 : Apport de l’imagerie dans le diagnostic du pseudokyste post traumatique du pancréas chez l’enfant 210 CO.111 : Diagnostic à l’imagerie des occlusions par volvulus du colon pelvien chez l’adulte. 210 CO.112 : Corps étranger intra et extra luminale digestif révélé par une occlusion intestinale aigüe : à propos d’un cas au CHU-YO.. 211 CO 113 : Apport de l’imagerie dans le diagnostic des tumeurs retro péritonéales de l’enfant. 211 CO.114 : Place de la TDM dans le diagnostic étiologique des Cholestases Extra Hépatiques (CEH) à Bouaké 212 CO.115 : Profil IRM du cancer du rectum au Centre Hospitalier d’Angré, Abidjan/Côte-d’Ivoire. 212 CO.116 : Tumeurs bénignes de la vésicule biliaire : un petit rappel sur des pathologies rares et souvent méconnues. 213 CO.117 : Performance diagnostique du Fibroscale pour l’évaluation la fibrose du foie au cours des hépatopathies chroniques. 214 CO.118 : Aspects BILI IRM dans les pathologies des voies biliaires ; à propos de 76 cas colligés à Abidjan 214 CO.119 : GIST rétropéritonéal, une localisation exceptionnelle d’une tumeur rare. A propos d’un cas à Ouagadougou et revue de la littérature. 215 CO.120 : Bilan scanographique de resécabilité des cancers du pancréas : à propos de 30 cas. 215 CO.121 : Apport de l’échographie dans le suivi des personnes vivants avec le virus de l’hépatite B. 216 CO.122 : Anatomie modale et variantes anatomiques du tronc cœliaque à l’angioscanner abdominale 216 CO.123 : Cavernome portal et thrombophilie constitutionnelle : à propos d’un cas de déficit congénital en protéine S et C et une double mutation génétique au Burkina Faso et revue de la littérature. 217 CO.124 : Drainage biliaire externe (DBE) guidé par imagerie : technique et résultats. 217 CO.125 : Aspects tomodensitométriques des cancers coliques à Bouaké à propos de 32 cas. 218 CO.126 : La radiologie interventionnelle en pratique libérale à Dakar. 218 CO.127 : Embolisation d’hémostase par du fil de suture. 219 COMMMUNICATIONS AFFICHEES. 220 POSTERS. 220 01 : Péritonite secondaire à la perforation colique par une arête de poisson. 220 03 : L’utilisation de l’Imagerie par Résonance Magnétique pour vérifier l’âge des footballeurs adolescents lors du tournoi U17 UFOA B 2021. 221 04 : Hernie hiatale du nourrisson : à propos d’un cas. 221 05 : Encéphalite limbique auto-immune : à propos d’un cas. 222 06 : Anévrysme de l’aorte découverte par dysphagie chronique : à propos de un cas. 222 07 : Hémarthrose surinfectée révélatrice d’une hémophilie A modérée. 223 CA.8 : Une pandiaphysite au cours d’une ostéarthromyosite chronique. 223 9 : Apport de l’imagerie en coupes dans le diagnostic du diverticule urétral de la femme : à propos d’un cas révélé par une rétention aiguë d’urine. 224 10 : Balle fongique de la cavité nasale mimant une rhinolithiase. 224 11 : Agénésie de la rotule : à propos de deux cas. 225 12 : L’imagerie médicale dans le bilan diagnostique du syndrome de Klippel Trenaunay : à propos d’un cas 225 13 : Apport de l’imagerie devant une monoarthrite du genou droit révélant une maladie de gaucher type I 226 14 : Le lupus érythémateux systémique de l’enfant : à propos de 3 cas. 226 15 : Neurotoxicité du gadolinium : Que dit la littérature ?. 227 16 : Forme rare du dysraphisme spinal fermé : la diastématomyélie. 228 17 : Tronc aortico-pulmonaire commun chez un enfant de 4 ans. 229 18 : Aspects épidémiologiques, cliniques, thérapeutiques et évolutifs du néphroblastome dans le service d’oncologie pédiatrique du Centre Hospitalier Universitaire Charles de Gaulle : De novembre 2009 au 31 décembre 2020 229 19 : Une récidive d‘AVC sous forme d’un Locked-In Syndrome. 230 20 : Coudure congénitale de verge traitée par la procédure de Nesbitt au CHU Souro Sanou de Bobo-Dioulasso. A propos d’une observation. 230 21 : Spondylodiscite infectieuse : tuberculose et/ou brucellose chez un jeune patient immunocompétent 231 22 : Etude de l’évolution de la consommation des antibiotiques au Centre Hospitalier Universitaire Yalgado Ouédraogo (CHU-YO) de 2015 à 2019. 232 23 : Evaluation des performances de l’Indiko Plus® à l’unité de biochimie du CHU Pédiatrique Charles De Gaulle de Ouagadougou. 232 24 : Apport de l’imagerie médicale dans le diagnostic des lésions osseuses de la drépanocytose chez l’enfant 233 25 : Myxome intra musculaire du grand adducteur de la cuisse : à propos d’un cas. 234 26 : Pseudo-anévrisme post-traumatique d’une branche de la carotide externe gauche. 234 27 : Tumeur bénigne (angiomyolipome) du psoas : à propos d'un cas découvert au Centre Hospitalier et Universitaire de Bouaké et une revue de la littérature. 235 Correspondant : 235 Issa KONATE. 235 Email : ikttata6@gmail.com.. 235 28 : Grossesse abdominale de datation tardive à propos d’un cas. 235 29 : Fracture hépatique et pancréas associée post-traumatique : à propos d’un cas au CHU Tengandogo (Burkina Faso). 235 30 : La maladie de FARH : à propos d’un cas (POSTER). 236 31 :: Aspect échographique du fibromatosis colli : à propos d’une observation à l’hôpital Sominé Dolo de Mopti au Mali 236 32 : Le tératome retro péritonéal d’un nourrisson au CHU Point G.. 237 33 : Incidentalome surrénalien révélant une tuberculose surrénalienne au scanner. 237 34 : Association hydranencéphalie et syndrome de DANDY WALKER une malformation cérébrale rare et mortelle 238 35 : Topographie et morphométrie de l’appendice vermiforme normal chez l’adulte à Ouagadougou : étude scanographique. 238 36 : Un épisode de mal convulsif révélant la maladie de FAHR. 239 37: Fistule carotidocaverneuse directe : Diagnostic et prise en charge endovasculaire à propos d’un cas et revue de la littérature. 239 38 : Chondrosarcome laryngé : à propos de 2 cas. 240 39: Abcès retro pharyngé de l’adulte par ingestion de corps étrangers : à propos de 2 cas au centre hospitalier universitaire régional de Ouahigouya. 240 40 : Tumeur papillaire du sac endolymphatique au niveau du rocher : à propos d’un cas. 241 41 :: Le fibromatosis colli : à propos de deux cas cliniques. 241 42 : Aspects clinique et IRM de l’ischémie médullaire à Lomé : une série de trois cas. 242 43 : Première expérience en radiothérapie sur un accélérateur linéaire Halcyon 2.0 au centre de radiothérapie Muk et Maseb à Kinshasa en pleine pandémie de Covid-19. 242 44 : Syndrome de Casse-Noisette ou Nutcraker syndrome : à propos d’un cas au CNHU-HKM de Cotonou au Bénin 243 45 : Évaluation des TDM thoraciques et de la PCR au cours de la COVID19 à Yaoundé. 243 46 : Bilan analytique des mémoires pour l’obtention du Diplôme d’études spécialisées en radiodiagnostic et imagerie médicale au Burkina Faso. 244 Mot de bienvenue du comité d’organisation JRANF 2021. 245 Comité d’organisation. 246 Résumé du programme. 247 Liste des EPU, des Conférences et des Ateliers. 253

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