Artículos de revistas: "Rupture detection"

1

Charnock, Mark. "Ultrasound Assessment of an Isolated Rupture of the Medial Bundle of a Bifid Distal Biceps Tendon". Journal of Medical Ultrasound 31, n.º 4 (7 de octubre de 2022): 323–26. http://dx.doi.org/10.4103/jmu.jmu_45_22.

Texto completo

Resumen

Abstract This case study describes a patient with a clinically ruptured distal biceps tendon, with ultrasound detecting an isolated rupture of the medial bundle of a bifid distal biceps tendon. A 45-year-old male presented to the accident and emergency department with a week-old history of a right elbow injury. The ultrasound scan demonstrated a hypoechoic, corrugated distal biceps tendon with a tendon stump close to the radial tuberosity insertion in keeping with a rupture. However, a small caliber accessory or bifid distal biceps tendon was also identified and was intact. Typically, distal biceps tendon ruptures occur following a traumatic event with most detected clinically although imaging is required to confirm the diagnosis. Ultrasound is utilized to assess these injuries, and several different techniques or approaches are described in the literature. A combination of these approaches is required to make an accurate diagnosis. Detection of bifid distal biceps tendons is important for patient management, especially if a surgical repair is considered. This case highlights the anatomical variant of a bifid distal biceps tendon, which was ruptured clinically. The ultrasound diagnosis of distal biceps tendon ruptures can be challenging, especially when there is limited tendon retraction. This case also demonstrated the importance of dynamic ultrasound in the assessment of tendon ruptures.

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Xing, Liang, Haibo Long, Rui Bo, Xue Gou, Yan He y Xing Peng. "A Computational Model of Blood D-Dimer, Cystatin C, and CRP Levels Predicts the Risk of Intracranial Aneurysms and their Rupture". Computational Intelligence and Neuroscience 2022 (18 de noviembre de 2022): 1–10. http://dx.doi.org/10.1155/2022/2216509.

Texto completo

Resumen

Objective. The aim of this study is to construct a computational model of blood D-dimer, cystatin C, and CRP levels and to predict the risk of intracranial aneurysms and their rupture. Methods. A total of 69 intracranial aneurysms patients were selected as the case group, including 28 cases in the ruptured group and 41 cases in the unruptured group. Another 64 non-intracranial aneurysm patients were selected as the control group. The detection results of serum D-dimer, cystatin C, and CRP were collected. The logistic regression computational model was used to analyze the occurrence and risk factors of intracranial aneurysms. The receiver operating curves (ROC) of serum D-dimer, cystatin C, and C reactive protein (CRP) levels for predicting intracranial aneurysms and their rupture were drawn, and the area under the curve (AUC), sensitivity, and specificity were calculated. Results. The serum levels of D-dimer, cystatin C, and CRP in patients with intracranial aneurysms were significantly higher than those in the control group and the differences were statistically significant P < 0.05 . The serum levels of D-dimer, cystatin C, and CRP in patients with ruptured intracranial aneurysms were higher than those in patients with unruptured intracranial aneurysms, and the differences were also statistically significant P < 0.05 . The combined detection of serum D-dimer, cystatin C, and CRP levels has a higher AUC (0.9014) for predicting intracranial aneurysms and higher AUC (0.9412) for predicting ruptured intracranial aneurysms than D-dimer (0.7118 and 0.8750, respectively), cystatin C (0.6489 and 0.6180, respectively), and CRP (0.7764 and 0.6551, respectively) independent detection; the combined detection had a sensitivity of 93.75% and 87.80 for predicting the occurrence and rupture of intracranial aneurysms, and the specificity was 68.12% and 92.86%, respectively. Conclusion. The combined detection of serum D-dimer, cystatin C, and CRP levels is a very valuable indicator for predicting the occurrence and rupture of intracranial aneurysms, and combined detection can provide scientific evidence-based guidance for clinical prediction of the occurrence and rupture of intracranial aneurysms.

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Künsch, Christophe, Lukas Fürer, Martin Steppan, Nathalie Schenk, Kathrin Blum, Michael Kaess, Julian Koenig, Klaus Schmeck y Ronan Zimmermann. "Withdrawal ruptures in adolescents with borderline personality disorder psychotherapy are marked by increased speech pauses–can minimal responses be automatically detected?" PLOS ONE 18, n.º 1 (17 de enero de 2023): e0280329. http://dx.doi.org/10.1371/journal.pone.0280329.

Texto completo

Resumen

Alliance ruptures of the withdrawal type are prevalent in adolescents with borderline personality disorder (BPD). Longer speech pauses are negatively perceived by these patients. Safran and Muran’s rupture model is promising but its application is very work intensive. This workload makes research costly and limits clinical usage. We hypothesised that pauses can be used to automatically detect one of the markers of the rupture model i.e. the minimal response marker. Additionally, the association of withdrawal ruptures with pauses was investigated. A total of 516 ruptures occurring in 242 psychotherapy sessions collected in 22 psychotherapies of adolescent patients with BPD and subthreshold BPD were investigated. Trained observers detected ruptures based on video and audio recordings. In contrast, pauses were automatically marked in the audio-recordings of the psychotherapy sessions and automatic speaker diarisation was used to determine the speaker-switching patterns in which the pauses occur. A random forest classifier detected time frames in which ruptures with the minimal response marker occurred based on the quantity of pauses. Performance was very good with an area under the ROC curve of 0.89. Pauses which were both preceded and followed by therapist speech were the most important predictors for minimal response ruptures. Research costs can be reduced by using machine learning techniques instead of manual rating for rupture detection. In combination with other video and audio derived features like movement analysis or automatic facial emotion detection, more complete rupture detection might be possible in the future. These innovative machine learning techniques help to narrow down the mechanisms of change of psychotherapy, here specifically of the therapeutic alliance. They might also be used to technologically augment psychotherapy training and supervision.

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Dupont, Stefan A., Giuseppe Lanzino, Eelco F. M. Wijdicks y Alejandro A. Rabinstein. "The use of clinical and routine imaging data to differentiate between aneurysmal and nonaneurysmal subarachnoid hemorrhage prior to angiography". Journal of Neurosurgery 113, n.º 4 (octubre de 2010): 790–94. http://dx.doi.org/10.3171/2010.4.jns091932.

Texto completo

Resumen

Object In this study, the authors' goal was to minimize false-negative results in the detection of ruptured cerebral aneurysms. Methods The authors retrospectively reviewed the clinical and radiological information in consecutive adult patients admitted with acute subarachnoid hemorrhage (SAH) to their hospital between January 1, 2002, and January 1, 2008. Patients were grouped based on the presence or absence of a ruptured aneurysm, which was detected by catheter angiography. Multivariate logistic regression analysis was used to identify factors predicting detection of aneurysmal rupture by angiography. Results The authors identified 199 patients (121 women [61%]). A ruptured aneurysm was detected in 167 patients (84%). In multivariate analysis, loss of consciousness at the onset of SAH was a strong predictive factor associated with detection of a ruptured aneurysm on subsequent angiography (OR > 100, p = 0.0002). The positive predictive value of loss of consciousness at the onset of SAH for detection of a ruptured aneurysm was 100%. Conclusions Loss of consciousness at the onset of SAH is highly predictive of aneurysm rupture. A negative CT angiography study in these patients may be a false result, and a high-quality catheter angiography should be performed.

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Wada, Kojiro, Hirohiko Arimoto, Hidenori Ohkawa, Toshiki Shirotani, Yohsitaro Matsushita y Takashi Takahara. "Usefulness of Preoperative Three-Dimensional Computed Tomographic Angiography With Two-Dimensional Computed Tomographic Imaging for Rupture Point Detection of Middle Cerebral Artery Aneurysms". Operative Neurosurgery 62, suppl_1 (1 de marzo de 2008): ONS126—ONS133. http://dx.doi.org/10.1227/01.neu.0000317382.45691.1a.

Texto completo

Resumen

Abstract Objective: We report the technique of three-dimensional computed tomographic (CT) angiography with a two-dimensional CT image aiding in the early operation of ruptured middle cerebral artery aneurysms. This combined image allows the prediction of the rupture point in the aneurysm and may reduce the risk of rupture during early clipping surgery. Methods: The findings for 14 patients with 14 middle cerebral artery ruptured aneurysms who underwent subsequent early clipping were analyzed. The average aneurysm size was 8.5 mm, and there were two large and one giant aneurysms. CT examinations were performed by means of a multidetector CT scanner (Aquilion M16; Toshiba Medical Systems, Tokyo, Japan) and reconstructed with a workstation (ZIO M900 QUADRA; Amin Co., Ltd., Tokyo, Japan). We constructed an operating view through three-dimensional CT angiography for a lateral transsylvian approach with a two-dimensional CT image (nonshaded volume-rendering image), which was perpendicular to the direction of the surgical approach. Using this combined image, we predicted the rupture point of the aneurysm and successfully performed clipping surgery through a lateral transsylvian approach. Rupture points were confirmed at the time of surgery. Rupture points of 13 out of 14 aneurysms appeared as we expected, but one differed; all aneurysms were successfully clipped. Thirteen of the 14 patients could be clipped without rupture at surgery, but the remaining patient experienced rupture just after craniotomy. Conclusion: The combination of three-dimensional CT angiography and two-dimensional CT images may help improve the surgical outcome by indicating aneurysmal rupture points, leading to the prevention of rupture.

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

Nenezić, Dragoslav y Igor Kocijancic. "The value of the sagittal-oblique MRI technique for injuries of the anterior cruciate ligament in the knee". Radiology and Oncology 47, n.º 1 (1 de enero de 2013): 19–25. http://dx.doi.org/10.2478/raon-2013-0006.

Texto completo

Resumen

Abstract Background. Complete rupture of the anterior cruciate ligament (ACL) does not represent a diagnostic problem for the standard magnetic resonance (MR) protocol of the knee. Lower accuracy of the standard MR protocol for partial rupture of the ACL can be improved by using additional, dedicated MR techniques. The study goal was to draw a comparison between sagittal-oblique MR technique of ACL imaging versus flexion MR technique of ACL imaging and, versus ACL imaging obtained with standard MR protocol of the knee. Patients and methods. In this prospective study we included 149 patients who were referred to magnetic resonance imaging (MRI) examination due to knee soft tissues trauma during 12 months period. MRI signs of ACL trauma, especially detection of partial tears, number of slices per technique showing the whole ACL, duration of applied additional protocols, and reproducibility of examination were analysed. Results. Accuracy of standard MRI protocol of the knee comparing to both additional techniques is identical in detection of a complete ACL rupture. Presentations of the partial ruptures of ACL using flexion technique and sagittaloblique technique were more sensitive (p<0.001) than presentation using standard MR protocol. There was no statistically significant difference between MRI detection of the ruptured ACL between additional techniques (p> 0.65). Sagittal-oblique technique provides a higher number of MRI slices showing the whole course of the ACL and requires a shorter scan time compared to flexion technique (p<0.001). Conclusions. Both additional techniques (flexion and sagittal-oblique) are just as precise as the standard MR protocol for the evaluation of a complete rupture of the ACL, so they should be used in cases of suspicion of partial rupture of the ACL. Our study showed sagittal-oblique technique was superior, because it did not depend on patient’s ability to exactly repeat the same external rotation if standard MR protocol was used or to repeat exactly the same flexion in flexion MR technique in further MR examinations. Sagittal-oblique technique does not require the patient’s knee to be repositioned, which makes this technique faster. We propose this technique in addition to the standard MR protocol for detection of partial ACL tears.

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Dowden, Richard V. "Detection of Gel Implant Rupture". Plastic and Reconstructive Surgery 91, n.º 3 (marzo de 1993): 548–50. http://dx.doi.org/10.1097/00006534-199303000-00025.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

Ng, Beng Kwang, Pei Shan Lim, Mohamad Nasir Shafiee, Nur Azurah Abdul Ghani, Nor Azlin Mohamed Ismail, Mohd Hashim Omar y Muhammad Abdul Jamil Muhammad Yassin. "Comparison between Amnisure Placental Alpha Microglobulin-1 Rapid Immunoassay and Standard Diagnostic Methods for Detection of Rupture of Membranes". BioMed Research International 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/587438.

Texto completo

Resumen

Objective. To determine the diagnostic accuracy of placental alpha microglobulin-1 assay and standard diagnostic methods for detecting rupture of membrane.Study Design. Prospective diagnostic study, between June 2011 to November 2011 at a tertiary centre. Initial evaluation included both the standard diagnostic methods for rupture of membranes and placental alpha microglobulin-1 immunoassay. The actual rupture of membranes was diagnosed on review of the medical records after delivery (absence of membrane or a positive pad chart).Main Outcome Measures. Placental alpha microglobulin-1 immunoassay and standard diagnostic methods for diagnosis of rupture of membrane.Results. A total of 211 patients were recruited. At initial presentation, 187 patients (88.6%) had ruptured membranes, while 24 patients (11.4%) had intact membranes. Placental alpha microglobulin-1 immunoassay confirmed rupture of membranes at initial presentation with a sensitivity of 95.7% (179 of 187), specificity of 100% (24 of 24), positive predictive value of 100% (179 of 179), and negative predictive value of 75.0% (24 of 32). By comparison, the conventional standard diagnostic methods had a sensitivity of 78.1% (146 of 187), specificity of 100% (24 of 24), positive predictive value of 100% (146 of 146), and negative predictive value of 36.9% (24 of 65) in diagnosing rupture of membrane.Conclusion. Placental alpha-microglobulin-1 immunoassay is a rapid and accurate method for confirming the diagnosis of rupture of membrane. It was superior to conventional standard diagnostic methods (pooling, nitrazine, and ferning), the nitrazine test alone or fern test alone.

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Jukovic, Mirela, Tijana Kokovic, Dragan Nikolic, Dalibor Ilic y Viktor Till. "Lower back pain - silent symptom of chronic infrarenal abdominal aneurysm rupture". Medical review 69, n.º 3-4 (2016): 115–17. http://dx.doi.org/10.2298/mpns1604115j.

Texto completo

Resumen

Introduction. The rupture of infrarenal abdominal aortic aneurysm is a surgical emergency condition with a high rate of mortality before the patients arrive at hospital. The signs and symptoms of abdominal aortic aneurysm rupture into the retroperitoneal cavity are pulsatile mass, abdominal pain, hypotension and shock, but sometimes silent symptoms also hide a dangerous and life threatening condition, such as chronic aneurysm rupture of abdominal aorta into the retroperitoneal cavity. Case Report. We present a patient having had the lower back pain for 4 months, which had been recognized and treated as lumbar ischialgia but which was eventually diagnosed to be chronic infrarenal abdominal aortic aneurysm rupture by computed tomography angiography. The surgical intervention was successful and the patient was discharged from hospital after 6 days without any clinical complications. Preoperative imaging by computed tomography angiography of ruptured abdominal aortic aneurysm is highly sensitive for detection of several specific signs for rupture. This condition leads to urgent vascular surgery.

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Harris, K. M., M. A. Ganott, K. C. Shestak, H. W. Losken y H. Tobon. "Silicone implant rupture: detection with US." Radiology 187, n.º 3 (junio de 1993): 761–68. http://dx.doi.org/10.1148/radiology.187.3.8497626.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

Hsuan-Shang Yen, Hsuan-Shang Yen, Justine Tang Hsuan-Shang Yen, Yi-Lin Chen Justine Tang, Yu-Hsiang Lee Yi-Lin Chen, Su-Cheng Huang Yu-Hsiang Lee, I.-Shiang Tzeng Su-Cheng Huang y Yin-Kuang Chang I-Shiang Tzeng. "Unscarred and Scarred Uterine Rupture in Pregnancy: A Six-case Series in Taipei Tzu-Chi Hospital". 童綜合醫學雜誌 16, S (septiembre de 2022): 028–32. http://dx.doi.org/10.53106/20713592202209160s005.

Texto completo

Resumen

<p>Objectives: This study included six uterine rupture in pregnancy cases over 12 years at Taipei Buddhist Tzu-Chi Hospital. We describe the clinical features and outcomes of rupture of unscarred uteri and scarred uteri following laparoscopic myomectomy. Materials and methods: This case series was conducted by reviewing medical charts at Taipei Tzu-Chi Hospital from May 2005 to October 2017. Of 22,962 women who gave birth, six women with full-thickness disruption of all uterine layers during pregnancy or delivery were enrolled. Results: Three cases had ruptures of unscarred uteri and three cases had in uteri scarring by previous laparoscopic myomectomy. The overall incidence of uterine rupture was 0.026%. In women with scarred uteri, the risk of uterine rupture was 0.21%. All uterine ruptures occurred after gestation for 34 weeks although ruptures occurred slightly earlier in the scarred group. All cases received hysterorrhaphy. One neonatal death occurred in the unscarred group and one intrauterine fetal death was diagnosed at admission in the scarred group. Conclusion: Although uterine rupture is a rare complication, the risk is higher for uteri scarred by cesarean section, abdominal myomectomy, or laparoscopic myomectomy. Comparison of risk after abdominal and laparoscopic surgery remains a topic of debate. Regardless of the transmyometrial surgical approach, surgeons should limit electrosurgery and perform multilayer closure. Additionally, early detection and management not only improves maternal and fetal outcomes, but also preserves patient fertility.</p> <p> </p>

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Jimenez, Joaquin E., Zachary C. Gersey, Jason Wagner, Brian Snelling, Sudheer Ambekar y Eric C. Peterson. "Role of follow-up imaging after resection of brain arteriovenous malformations in pediatric patients: a systematic review of the literature". Journal of Neurosurgery: Pediatrics 19, n.º 2 (febrero de 2017): 149–56. http://dx.doi.org/10.3171/2016.9.peds16235.

Texto completo

Resumen

OBJECTIVE Pediatric patients are at risk for the recurrence of brain arteriovenous malformation (AVM) after resection. While there is general consensus on the importance of follow-up after surgical removal of an AVM, there is a lack of consistency in the duration of that follow-up. The object of this systematic review was to examine the role of follow-up imaging in detecting AVM recurrence early and preventing AVM rupture. METHODS This systematic review was performed using articles obtained through a search of the literature contained in the MeSH database, according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. RESULTS Search results revealed 1052 articles, 13 of which described 31 cases of AVM recurrence meeting the criteria for inclusion in this study. Detection of AVM occurred significantly earlier (mean ± SD, 3.56 ± 3.67 years) in patients with follow-up imaging than in those without (mean 8.86 ± 5.61 years; p = 0.0169). While 13.34% of patients who underwent follow-up imaging presented with rupture of a recurrent AVM, 57.14% of those without follow-up imaging presented with a ruptured recurrence (p = 0.0377). CONCLUSIONS Follow-up imaging has an integral role after AVM resection and is sometimes not performed for a sufficient period, leading to delayed detection of recurrence and an increased likelihood of a ruptured recurrent AVM.

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Gratz, S., G. Köster, T. Behr, R. Vosshenrich, E. Grabbe y W. Becker. "Arthroscintigraphy in Suspected Rotator Cuff Rupture". Nuklearmedizin 37, n.º 08 (1998): 272–78. http://dx.doi.org/10.1055/s-0038-1632348.

Texto completo

Resumen

Summary Aim: In order to evaluate the diagnostic efficiency of arthroscintigraphy in suspected rotator cuff ruptures this new imaging procedure was performed 20 times in 17 patients with clinical signs of a rotator cuff lesion. The scintigraphic results were compared with sonography (n = 20), contrast arthrography (n = 20) and arthroscopy (n = 10) of the shoulder joint. Methods: After performing a standard bone scintigraphy with intravenous application of 300 MBq 99m-Tc-methylene diphosphonate (MDP) for landmarking of the shoulder region arthroscintigraphy was performed after an intraarticular injection of 99m-Tc microcolloid (ALBURES 400 μCi/5 ml). The application was performed either in direct combination with contrast arthrography (n = 10) or ultrasound conducted mixed with a local anesthetic (n = 10). Findings at arthroscopical surgery (n = 10) were used as the gold standard. Results: In case of complete rotator cuff rupture (n = 5), arthroscintigraphy and radiographic arthrography were identical in 5/5. In one patient with advanced degenerative alterations of the shoulder joint radiographic arthrography incorrectly showed a complete rupture which was not seen by arthroscintigraphy and endoscopy. In 3 patients with incomplete rupture, 2/3 results were consistant. A difference was seen in one patient with a rotator cuff, that has been already revised in the past and that suffered of capsulitis and calcification. Conclusion: Arthroscintigraphy is a sensitive technique for detection of rotator cuff ruptures. Because of the lower viscosity of the active compound, small ruptures can be easily detected, offering additional value over radiographic arthrography and ultrasound, especially for evaluation of incomplete cuff ruptures.

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Djoric, Igor, Djordjije Saranovic, Dragan Sagic, Vladimir Jovanovic, Igor Nikolic, Nikola Repac, Aleksandar Janicijevic, Vuk Scepanovic, Vesna Ivanisevic y Goran Tasic. "Diagnostic value of multidetector computed tomographic angiography in early diagnosis of intracranial aneurysms in the anterior communicating artery (ACoA)". Acta chirurgica Iugoslavica 60, n.º 4 (2013): 71–75. http://dx.doi.org/10.2298/aci1304071d.

Texto completo

Resumen

Multidetector computed tomographic angiography (MDCTA) is a non-invasive, highly sophisticated and readily available diagnostic method nowadays gained primacy in the algorithm of the blood vessels of the brain. MDCTA showed the highest sensitivity and specificity for early detection of ruptured intracranial aneurysms. Saccular aneurysm geometry (shape and size), anatomic localization, and patient-dependent factors individually and together determine the risk of rupture of the aneurysm. Unruptured aneurysms in anterior communicating artery showed twice the possibility of rupture than other intracranial aneurysms. Clinical history ACoA aneurysms after rupture is particularly difficult. This justifies the efforts to determine the real risk of these aneurysms when SAH was not found on the native scan endocranium. It is here that the diagnostic value and usefulness of MDCTA examination increases significantly and its true dimension.

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Kim, Jae-Hong, Yun-Gyoung Kim, Keun-Yeong Song, Hyung-Guhn Lim, Jeong-Pil Jeong, Jung-Youp Sung, Angela-Soeun Lee y Heung-Kyu Park. "Exploration of Point-of-Care Ultrasonography for Silicone Breast Implant Rupture Detection and Classification". Medicina 60, n.º 2 (10 de febrero de 2024): 306. http://dx.doi.org/10.3390/medicina60020306.

Texto completo

Resumen

Background and Objectives: The surge in breast-related surgeries in Korea underscores the critical need for an accurate early diagnosis of silicone breast implant-related issues. Complications such as BIA-ALCL and BIA-SCC add complexity to breast health concerns, necessitating vigilant monitoring. Despite advancements, discrepancies persist between ultrasonographic and pathologic classifications of silicone implant ruptures, highlighting a need for enhanced diagnostic tools. This study explores the reliability of ultrasonography in diagnosing silicone breast implant ruptures and determining the extent of silicone migration, specifically with a focus on guiding potential capsulectomy based on pathology. Materials and Methods: A comprehensive review of medical records encompassing 5557 breast implants across 2790 patients who underwent ultrasound-assisted examinations was conducted. Among the screened implants, 8.9% (249 cases) were diagnosed with silicone breast implant rupture through ultrasonography. Subsequently, 89 women underwent revisional surgery, involving capsulectomy. The pathological analysis of 111 periprosthetic capsules from these cases aimed to assess the extent of silicone migration, and the findings were juxtaposed with the existing ultrasonographic rupture classification. Results: The diagnostic agreement between preoperative sonography and postoperative findings reached 100% for silicone breast implant ruptures. All eighty prosthetic capsules exhibiting a snowstorm sign in ultrasonography demonstrated silicone migration to capsules upon pathologic findings. Conclusions: High-resolution ultrasonography emerged as a valuable and reliable imaging modality for diagnosing silicone breast implant ruptures, with a notable ability to ascertain the extent of free silicone migration to capsules. This diagnostic precision is pivotal in informing decisions about potential capsulectomy during revisional surgery. The study advocates for an update to the current binary ultrasonographic classification, suggesting a more nuanced categorization into three types (subcapsular, intracapsular, and extracapsular) based on pathology.

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Funayama, Kazuhisa, Kazuki Tainaka, Akihide Koyama, Rieka Katsuragi-Go, Natsumi Nishikawa-Harada, Ryoko Higuchi, Takashi Aoyama, Hiraku Watanabe, Naoya Takahashi y Hisakazu Takatsuka. "Detection and Morphological Analysis of Micro-Ruptured Cortical Arteries in Subdural Hematoma: Three-Dimensional Visualization Using the Tissue-Clearing Clear, Unobstructed, Brain/Body Imaging Cocktails and Computational Analysis Method". Diagnostics 12, n.º 11 (20 de noviembre de 2022): 2875. http://dx.doi.org/10.3390/diagnostics12112875.

Texto completo

Resumen

One of the causes of bleeding in subdural hematoma is cortical artery rupture, which is difficult to detect at autopsy. Therefore, reports of autopsy cases with this condition are limited and hence, the pathogenesis of subdural hematoma remains unclear. Herein, for the detection and morphological analysis of cortical artery ruptures as the bleeding sources of subdural hematoma, we used the tissue-clearing CUBIC (clear, unobstructed, brain/body imaging cocktails and computational analysis) method with light-sheet fluorescence microscopy and reconstructed the two-dimensional and three-dimensional images. Using the CUBIC method, we could clearly visualize and detect cortical artery ruptures that were missed by conventional methods. Indeed, the CUBIC method enables three-dimensional morphological analysis of cortical arteries including the ruptured area, and the creation of cross-sectional two-dimensional images in any direction, which are similar to histopathological images. This highlights the effectiveness of the CUBIC method for subdural hematoma analysis.

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Hayes, Alison M., Edwards J. Baker, Ian Murdoch y Michael L. Rigby. "Magnetic resonance in the detection and review of aortic aneurysms following surgical repair of aortic coarctation". Cardiology in the Young 3, n.º 1 (enero de 1993): 60–63. http://dx.doi.org/10.1017/s1047951100010659.

Texto completo

Resumen

SummaryFormation of aortic aneurysms is an important and not infrequent sequel of surgical repair of aortic coarctation. Detection is often haphazard and fatal ruptures are reported. We report a series of cases where resonance imaging identified aneurysmal dilatation of the thoracic aorta after either patch aortoplasry or subclavian flap repair of aortic coarctation. In one, rupture of the aneurysm occurred five months following the initial resonance study. Repeat imaging confirmed the clinical suspicion of rupture and successful surgical resection was subsequently performed. Magnetic resonance is a practical and reproducible imaging technique which is particularly valuable in the identification of abnormalities within the thoracic aorta following surgical aortoplasty or interventional procedures for aortic coarctation. As a method of routine surveillance in these groups of patients, it is superior to any alternative technique.

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Heit, Jeremy J., R. Gilberto Gonzalez, David Sabbag, H. Bart Brouwers, Edgar Gerardo Ordonez Rubiano, Pamela W. Schaefer, Joshua A. Hirsch y Javier M. Romero. "Detection and characterization of intracranial aneurysms: a 10-year multidetector CT angiography experience in a large center". Journal of NeuroInterventional Surgery 8, n.º 11 (9 de noviembre de 2015): 1168–72. http://dx.doi.org/10.1136/neurintsurg-2015-012082.

Texto completo

Resumen

BackgroundCT angiography (CTA) is increasingly used for the detection, characterization, and follow-up of intracranial aneurysms. A lower threshold to request a CT angiogram may render a patient population that differs from previous studies primarily evaluated with conventional angiography. Our objective was to broaden our knowledge of the factors associated with aneurysm rupture and patient mortality in this population.MethodsAll CTA studies performed over a 10-year period at a large neurovascular referral center were reviewed for the presence of an intracranial aneurysm. Patient demographics, mortality, CTA indication, aneurysm location, size, and rupture status were recorded.Results2927 patients with aneurysms were identified among 29 003 CTAs. 17% of the aneurysms were ruptured at the time of imaging, 24% of aneurysms were incidentally identified, and multiple aneurysms were identified in 34% of patients. Aneurysms most commonly arose from the supraclinoid internal carotid artery (22%), the middle cerebral artery (18%), and the anterior communicating artery (13%). Male sex, age <50 years, aneurysms >6 mm, and aneurysms arising from the anterior communicating artery, posterior communicating artery, or the posterior circulation were independent predictors of aneurysm rupture. Independent mortality predictors included male sex, posterior circulation aneurysms, intraventricular hemorrhage, and intraparenchymal hemorrhage.ConclusionsThese results indicate that aneurysms detected on CTA that arise from the anterior communicating artery, posterior communicating artery, or the posterior circulation, measure >6 mm in size, occur in men, and in patients aged <50 years are associated with rupture.

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

DAVIDSON, KIM M. "Detection of Premature Rupture of the Membranes". Clinical Obstetrics and Gynecology 34, n.º 4 (diciembre de 1991): 715–22. http://dx.doi.org/10.1097/00003081-199112000-00007.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

Hao, Zhongwei. "Detection of rupture lines for active scanning". Optical Engineering 46, n.º 6 (1 de junio de 2007): 067205. http://dx.doi.org/10.1117/1.2748772.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Lu, Sandra, Glenn A. Rouse y Marie De Lange. "Sonoographic Detection of Silicone Breast Implant Rupture". Journal of Diagnostic Medical Sonography 11, n.º 1 (enero de 1995): 3–8. http://dx.doi.org/10.1177/875647939501100102.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

Funayama, Kazuhisa, Akihide Koyama, Rieka Katsuragi-Go, Takashi Aoyama, Hiraku Watanabe, Naoya Takahashi y Hisakazu Takatsuka. "Bleeding-Source Exploration in Subdural Hematoma: Observational Study on the Usefulness of Postmortem Computed Tomography Angiography". Diagnostics 13, n.º 13 (6 de julio de 2023): 2286. http://dx.doi.org/10.3390/diagnostics13132286.

Texto completo

Resumen

In a few cases, postmortem computed tomography angiography (PMCTA) is effective in postmortem detection of cortical artery rupture causing subdural hematoma (SDH), which is difficult to detect at autopsy. Here, we explore the usefulness and limitations of PMCTA in detecting the sites of cortical arterial rupture for SDH. In 6 of 10 cases, extravascular leakage of contrast material at nine different places enabled PMCTA to identify cortical arterial rupture. PMCTA did not induce destructive arterial artifacts, which often occur during autopsy. We found that, although not in all cases, PMCTA could show the site of cortical arterial rupture causing subdural hematoma in some cases. This technique is beneficial for cases of SDH autopsy, as it can be performed nondestructively and before destructive artifacts from the autopsy occur.

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Bykov, V. P., K. O. Pavlov, E. A. Mordovskii, V. F. Fedoseev, A. P. Korobitsyn, A. A. Beliaev y G. M. Karelskii. "Traumatic diaphragmatic hernias in patients with closed chest and abdominal trauma". Grekov's Bulletin of Surgery 181, n.º 1 (28 de diciembre de 2021): 73–79. http://dx.doi.org/10.24884/0042-4625-2022-181-1-73-79.

Texto completo

Resumen

The OBJECTIVE of the study was the pathomorphological features, diagnosis, and treatment outcomes of diaphragm ruptures in closed trunk trauma.MATERIALS AND METHODS. We prospectively studied diaphragmatic ruptures in 35 hospitalized patients with blunt trunk trauma and diaphragmatic defects in 9 patients with chronic traumatic diaphragmatic hernia, previously not recognized in other hospitals. Damage severity was assessed using the MFS-D (MI) scale; statistical data were processed using the WinPepi program: calculation of the boundaries of 95 % CI of medium and extensive values using the fisher method.RESULTS. Diaphragmatic ruptures were observed in 3.25 % of the victims. Damage to the left side occurred 2.4 times more often than the right side; on the left, they were mainly localized in the lumbar and adjacent costal parts. The average length of the rupture of the right half was 13.5, the left half was 9.8 (2-25) cm. More often, the greater omentum, colon, liver and stomach fell into the pleural cavity. During the first day, 2/3 of diaphragm ruptures were diagnosed, mainly during thoracotomy and laparotomy due to bleeding. Missing a rupture of the left half of the diaphragm was allowed at 6 laparotomies. Mortality rate was 31.4 %, the main causes were acute blood loss, severe brain damage; 2 out of 11 deaths were due to a complicated course of an unrecognized diaphragmatic rupture. All patients with chronic diaphragmatic hernia recovered after surgery.CONCLUSION. Diagnosis of diaphragmatic rupture in severe trunk injury on the first day is difficult, radiation methods: radiography, MSCT, ultrasound are not informative enough. When performing diagnostic studies and abdominal operations, it is necessary to study the diaphragm. Repeated survey radiography and MSCT of the chest during the first three weeks of inpatient treatment of the victim increases the detection of acute traumatic diaphragmatic hernia.

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Lincenberg, Kimberly R., Eric R. Behrman, James S. Bembry y Christine M. Kovac. "Uterine Rupture with Cesarean Scar Heterotopic Pregnancy with Survival of the Intrauterine Twin". Case Reports in Obstetrics and Gynecology 2016 (2016): 1–4. http://dx.doi.org/10.1155/2016/6832094.

Texto completo

Resumen

Background. Heterotopic pregnancy is a multiple gestation with both intrauterine and ectopic fetuses. A cesarean scar ectopic pregnancy is when the fetus has implanted over the previous hysterotomy site. A known complication of cesarean scar ectopic pregnancy is uterine rupture, which can cause great morbidity and mortality. Case. 28-year-old G5P3105 at 10 weeks with a dichorionic diamniotic gestation was found to have a ruptured uterus with expulsion of a cesarean scar ectopic pregnancy and retention of the intrauterine fetus. After uterine repair, the singleton gestation reached viability was delivered by emergent cesarean section for placental abruption. Conclusion. Safe management of cesarean ectopic pregnancy requires early diagnosis by ultrasonography. With early detection, management can focus on preventing maternal morbidity of uterine rupture and life-threatening hemorrhage.

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Dinsmoor, Mara J., Harry P. Dalton, Thomas C. C. Peng, James T. Christmas, Sousan Sayahtaheri-Altaie, Kevin Harvey y J. Peter VanDorsten. "Comparison of Culture and Rapid Enzyme Immunoassay for the Detection of Group B Streptococcus in High-Risk Pregnancies". Infectious Diseases in Obstetrics and Gynecology 2, n.º 3 (1994): 115–19. http://dx.doi.org/10.1155/s1064744994000499.

Texto completo

Resumen

Objective:The purpose of this study was to evaluate the Equate Strep B® test for clinical use in patients at high risk for complications from group B streptococcus (GBS) disease.Methods:Vaginoperineal swabs were obtained from patients with preterm premature rupture of the membranes and/or preterm labor and semiquantitative GBS cultures and Equate® assay were performed.Results:From May 14, 1990, to April 30, 1992, 650 patients were enrolled; 626 had both culture and Equate® results available, of whom 24% were colonized with GBS. The sensitivity, specificity, positive predictive value, and negative predictive value of the rapid assay were 28%, 84%, 35%, and 79%, respectively. Although the prevalence of GBS was higher in patients with ruptured membranes compared with those with intact membranes, rupture of membranes did not affect test sensitivity or specificity.Conclusions:We conclude that the Equate® rapid assay is not a sensitive method of GBS detection in high-risk patients.

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Wilson, Juliana, Matthew Mendes, Marian Betz y Juan Mingo. "Nausea and Dyspnea on Exertion: Left Ventricular Free-wall Rupture". Clinical Practice and Cases in Emergency Medicine 6, n.º 1 (16 de diciembre de 2021): 90–92. http://dx.doi.org/10.5811/cpcem.2021.4.50265.

Texto completo

Resumen

Case Presentation: A 53-year-old female presented to the emergency department with three days of nausea and dyspnea on exertion after using methamphetamine. Initial electrocardiogram revealed an ST-elevation myocardial infarction. While awaiting transfer to the cardiac catheterization lab the patient suffered a witnessed cardiac arrest. During resuscitative efforts an enlarging pericardial effusion on point-of-care ultrasound led to the detection of a left ventricular free-wall rupture (LVFWR). This case illustrates the progression of a left ventricular free-wall rupture using point-of-care ultrasound. Discussion: Left ventricular free-wall rupture has a low incidence rate in the setting of an acute myocardial infarction. Ultrasonography is the tool of choice for detecting a LVFWR.

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Mushenkova, Nataliya V., Volha I. Summerhill, Dongwei Zhang, Elena B. Romanenko, Andrey V. Grechko y Alexander N. Orekhov. "Current Advances in the Diagnostic Imaging of Atherosclerosis: Insights into the Pathophysiology of Vulnerable Plaque". International Journal of Molecular Sciences 21, n.º 8 (23 de abril de 2020): 2992. http://dx.doi.org/10.3390/ijms21082992.

Texto completo

Resumen

Atherosclerosis is a lipoprotein-driven inflammatory disorder leading to a plaque formation at specific sites of the arterial tree. After decades of slow progression, atherosclerotic plaque rupture and formation of thrombi are the major factors responsible for the development of acute coronary syndromes (ACSs). In this regard, the detection of high-risk (vulnerable) plaques is an ultimate goal in the management of atherosclerosis and cardiovascular diseases (CVDs). Vulnerable plaques have specific morphological features that make their detection possible, hence allowing for identification of high-risk patients and the tailoring of therapy. Plaque ruptures predominantly occur amongst lesions characterized as thin-cap fibroatheromas (TCFA). Plaques without a rupture, such as plaque erosions, are also thrombi-forming lesions on the most frequent pathological intimal thickening or fibroatheromas. Many attempts to comprehensively identify vulnerable plaque constituents with different invasive and non-invasive imaging technologies have been made. In this review, advantages and limitations of invasive and non-invasive imaging modalities currently available for the identification of plaque components and morphologic features associated with plaque vulnerability, as well as their clinical diagnostic and prognostic value, were discussed.

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Bode, C. y C. von zur Mühlen. "MRI, the technology for imaging of thrombi and inflammation". Hämostaseologie 35, n.º 03 (2015): 252–62. http://dx.doi.org/10.5482/hamo-14-11-0061.

Texto completo

Resumen

SummaryAtherosclerosis and its sequelae have a major impact on morbidity and mortality. The rupture of an inflamed atherosclerotic plaque is a crucial event, since it can result in acute thrombotic closure of an arterial vessel, resulting e. g. in myocardial infarction or stroke. Not only detection of early plaque rupture with imminent closure is therefore of clinical interest, but also timely detection of vascular inflammation and atherosclerotic plaque progression. However, plaque inflammation or even plaque rupture without vessel occlusion is not reliably detectable by current imaging techniques. Coronary angiography is the gold standard for evaluation of the coronary vessels, but only allows visualization of the vessel lumen without characterizing the important pathophysiology of the vessel wall. Therefore, highly inflamed and rupture prone plaques can be missed, or appear as a minor vessel narrowing. Although currently available techniques such as intravascular ultrasound or optical coherence tomography allow a further characterization of atherosclerotic plaques, it would be desirable to detect plaque inflammation, early plaque rupture or vascular thrombosis by non-invasive techniques such as magnetic resonance imaging (MRI), since they could allow early identification of patients at risk or triage of symptomatic patients.In this manuscript, different strategies for detection of vascular inflammation, plaque-rupture and thrombosis by MRI will be discussed, with a special focus on molecular imaging contrast agents.

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Slesarev, N. Yu. "Hydroacoustic Rupture-Detection System for Major Underwater Pipelines". IOP Conference Series: Earth and Environmental Science 272 (21 de junio de 2019): 022113. http://dx.doi.org/10.1088/1755-1315/272/2/022113.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Lozano, V. y P. Alonso. "Sonographic detection of the distal biceps tendon rupture." Journal of Ultrasound in Medicine 14, n.º 5 (mayo de 1995): 389–91. http://dx.doi.org/10.7863/jum.1995.14.5.389.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

Park, Alan J., James Walsh, Peta S. V. Reddy, Udi Chetty y Anthony C. H. Watson. "The detection of breast implant rupture using ultrasound". British Journal of Plastic Surgery 49, n.º 5 (julio de 1996): 299–301. http://dx.doi.org/10.1016/s0007-1226(96)90158-7.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Caffee, H. H., N. S. Hardt, G. La Torre y H. H. Coffee. "Detection of Breast Implant Rupture with Aspiration Cytology". Plastic and Reconstructive Surgery 95, n.º 7 (junio de 1995): 1145–49. http://dx.doi.org/10.1097/00006534-199506000-00001.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Sanchis, Irina M., Shehbaz Shukoor, Maria V. Irazabal, Charles D. Madsen, Fouad T. Chebib, Marie C. Hogan, Ziad El-Zoghby et al. "Presymptomatic Screening for Intracranial Aneurysms in Patients with Autosomal Dominant Polycystic Kidney Disease". Clinical Journal of the American Society of Nephrology 14, n.º 8 (30 de julio de 2019): 1151–60. http://dx.doi.org/10.2215/cjn.14691218.

Texto completo

Resumen

Background and objectivesIntracranial aneurysm rupture is the most devastating complication of autosomal dominant polycystic kidney disease. Whether selective or widespread intracranial aneurysm screening is indicated remains controversial.Design, setting, participants & measurementsRecords of 3010 patients with autosomal dominant polycystic kidney disease evaluated at the Mayo Clinic between 1989 and 2017 were reviewed. Those who had presymptomatic magnetic resonance angiography screening were included.ResultsNinety-four intracranial aneurysms were diagnosed in 75 of 812 (9%) patients who underwent magnetic resonance angiography screening. Sex, age, race, and genotype were similar in the groups with and without aneurysms; hypertension and history of smoking were more frequent in the aneurysm group. Twenty-nine percent of patients with aneurysms compared with 11% of those without aneurysms had a family history of subarachnoid hemorrhage (P<0.001). Most aneurysms were small (median diameter =4 mm; range, 2–12 mm); 85% were in the anterior circulation. During a total imaging follow-up of 469 patient-years, de novo intracranial aneurysms were detected in five patients; eight intracranial aneurysms grew (median =2 mm; range, 1–3 mm). During a total clinical follow-up of 668 patient-years, seven patients had preemptive clipping or coil embolization; no intracranial aneurysms ruptured. During a total clinical follow-up of 4783 patient-years in 737 patients with no intracranial aneurysm detected on the first magnetic resonance angiography screening, two patients had an intracranial aneurysm rupture (0.04 per 100 person-years; 95% confidence interval, 0 to 0.10). The rate of intracranial aneurysm rupture in large clinical trials of autosomal dominant polycystic kidney disease was 0.04 per 100 patient-years (95% confidence interval, 0.01 to 0.06).ConclusionsIntracranial aneurysms were detected by presymptomatic screening in 9% of patients with autosomal dominant polycystic kidney disease, more frequently in those with familial history of subarachnoid hemorrhage, hypertension, or smoking. None of the patients with and two of the patients without aneurysm detection on screening suffered aneurysmal ruptures. The overall rupture rate in our autosomal dominant polycystic kidney disease cohort was approximately five times higher than that in the general population.

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Lauric, Alexandra, Merih I. Baharoglu y Adel M. Malek. "Size Ratio Performance in Detecting Cerebral Aneurysm Rupture Status Is Insensitive to Small Vessel Removal". Neurosurgery 72, n.º 4 (14 de diciembre de 2012): 547–54. http://dx.doi.org/10.1227/neu.0b013e318282a513.

Texto completo

Resumen

Abstract BACKGROUND: The variable definition of size ratio (SR) for sidewall (SW) vs bifurcation (BIF) aneurysms raises confusion for lesions harboring small branches, such as carotid ophthalmic or posterior communicating locations. These aneurysms are considered SW by many clinicians, but SR methodology classifies them as BIF. OBJECTIVE: To evaluate the effect of ignoring small vessels and SW vs stringent BIF labeling on SR ruptured aneurysm detection performance in borderline aneurysms with small branches, and to reconcile SR-based labeling with clinical SW/BIF classification. METHODS: Catheter rotational angiographic datasets of 134 consecutive aneurysms (60 ruptured) were automatically measured in 3-dimensional. Stringent BIF labeling was applied to clinically labeled aneurysms, with 21 aneurysms switching label from SW to BIF. Parent vessel size was evaluated both taking into account, and ignoring, small vessels. SR was defined accordingly as the ratio between aneurysm and parent vessel sizes. Univariate and multivariate statistics identified significant features. The square of the correlation coefficient (R2) was reported for bivariate analysis of alternative SR calculations. RESULTS: Regardless of SW/BIF labeling method, SR was equally significant in discriminating aneurysm ruptured status (P < .001). Bivariate analysis of alternative SR had a high correlation of R2 = 0.94 on the whole dataset, and R2 = 0.98 on the 21 borderline aneurysms. CONCLUSION: Ignoring small branches from SR calculation maintains rupture status detection performance, while reducing postprocessing complexity and removing labeling ambiguity. Aneurysms adjacent to these vessels can be considered SW for morphometric analysis. It is reasonable to use the clinical SW/BIF labeling when using SR for rupture risk evaluation.

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Osaki, T., J. P. Barbot, R. Kawano, H. Sasaki, O. Français, B. Le Pioufle y S. Takeuchi. "A rupture detection algorithm for the DNA translocation detection though biological nanopore". Procedia Engineering 5 (2010): 796–99. http://dx.doi.org/10.1016/j.proeng.2010.09.228.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Kodera, Yuki. "Real-Time Detection of Rupture Development: Earthquake Early Warning Using P Waves From Growing Ruptures". Geophysical Research Letters 45, n.º 1 (11 de enero de 2018): 156–65. http://dx.doi.org/10.1002/2017gl076118.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Tereshchenko, A. V., N. N. Yudina, Y. A. Sidorova, O. S. Kulikov, A. M. Kodunov y V. V. Firsova. "Retrospective analysis of the results of episcleral filling in the surgical treatment of primary rhegmatogenous retinal detachment". Modern technologies in ophtalmology, n.º 3 (15 de julio de 2021): 171–74. http://dx.doi.org/10.25276/2312-4911-2021-3-171-174.

Texto completo

Resumen

Purpose – to conduct a retrospective analysis of the results of episcleral filling in the surgical treatment of primary rhegmatogenous retinal detachment. Material and methods. Patients diagnosed with rhegmatogenous retinal detachment whom were undergone episcleral filling from 2015 to 2020 at the S. Fyodorov Eye Microsurgery Federal State Institution, the Kaluga Branch, were performed to a detailed retrospective analysis. Additionally, cases were analyzed when, after episcleral filling, the retina did not attach and later vitreoretinal surgery was performed. Results. Episcleral surgery was performed to the 486 eyes, repeated interventions were required to 126 eyes (26%). The presence of peripheral chorioretinal dystrophy of the retina (PCHDR) in paired eyes was found in only 45% of patients. In these patients’ retinal attachment was achieved with only one episcleral filling. In cases of lack of retinal attachment after episcleral surgery, the proportion of the presence of PCHDR in the paired eye was 84%. The superior and temporal segments were the most frequent places of localization of retinal rupture. At the same time, there were retinal ruptures in the upper segment in 30% of patients. The proportion of rupture in the external segment was 32%. The retinal rupture was localized in the upper external segment at 18% of cases. At 20% of cases, retinal ruptures were localized in the lower external and lower segments. Conclusion. The success of episcleral surgery depends on the thoroughness of the diagnosis, the detection of all existing retinal ruptures and their blocking during the surgical treatment. Key words: rhegmatogenous retinal detachment, episcleral filling, intravitreal surgery.

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Bentzon, Jacob Fog, Mat Daemen, Erling Falk, Hector M. Garcia-Garcia, Joerg Herrmann, Imo Hoefer, J. Wouter Jukema et al. "Stabilisation of atherosclerotic plaques". Thrombosis and Haemostasis 106, n.º 07 (2011): 1–19. http://dx.doi.org/10.1160/th10-12-0784.

Texto completo

Resumen

SummaryPlaque rupture and subsequent thrombotic occlusion of the coronary artery account for as many as three quarters of myocardial infarctions. The concept of plaque stabilisation emerged about 20 years ago to explain the discrepancy between the reduction of cardiovascular events in patients receiving lipid lowering therapy and the small decrease seen in angiographic evaluation of atherosclerosis. Since then, the concept of a vulnerable plaque has received a lot of attention in basic and clinical research leading to a better understanding of the pathophysiology of the vulnerable plaque and acute coronary syndromes. From pathological and clinical observations, plaques that have recently ruptured have thin fibrous caps, large lipid cores, exhibit outward remodelling and invasion by vasa vasorum. Ruptured plaques are also focally inflamed and this may be a common denominator of the other pathological features. Plaques with similar characteristics, but which have not yet ruptured, are believed to be vulnerable to rupture. Experimental studies strongly support the validity of anti-inflammatory approaches to promote plaque stability. Unfortunately, reliable non-invasive methods for imaging and detection of such plaques are not yet readily available. There is a strong biological basis and supportive clinical evidence that low-density lipoprotein lowering with statins is useful for the stabilisation of vulnerable plaques. There is also some clinical evidence for the usefulness of antiplatelet agents, beta blockers and renin-angiotensin-aldosterone system inhibitors for plaque stabilisation. Determining the causes of plaque rupture and designing diagnostics and interventions to prevent them are urgent priorities for current basic and clinical research in cardiovascular area.

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

Anaizi, Ahmed y Othman Al-Dabbagh. "Primary Spontaneous Splenic Rupture: A Rare and Life-Threatening Condition". American Journal of Medical Science and Innovation 2, n.º 2 (7 de noviembre de 2023): 175–79. http://dx.doi.org/10.54536/ajmsi.v2i2.2122.

Texto completo

Resumen

This case report outlines the presentation, diagnosis, and management of a 26-year-old male with primary spontaneous splenic rupture, a highly uncommon clinical condition. Primary spontaneous splenic rupture necessitates a high index of suspicion for accurate diagnosis. Diagnostic Imaging, particularly abdominal CT scans, is pivotal in its detection. This case underscores the critical importance of timely recognition and intervention. Clinicians should consider various inflammatory, neoplastic, and infectious etiologies in the differential diagnosis of splenic rupture. Physical examination revealed tenderness and guarding, predominantly in the left upper quadrant and left flank. Laboratory findings indicated an elevated white blood cell count, predominantly polymorphonuclear leukocytes. Contrast-enhanced CT scan showed substantial free fluid in the acute abdomen, with high density observed around the liver and spleen. Exploratory laparotomy confirmed hemoperitoneum and spontaneous splenic rupture. This case report highlights the rarity of primary spontaneous splenic rupture and emphasises the significance of early detection and intervention. Through examination and advanced imaging techniques, clinicians can accurately diagnose and promptly manage this life-threatening condition.

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Prieto-Lage, Iván, Juan Carlos Argibay-González, Adrián Paramés-González, Alexandra Pichel-Represas, Diego Bermúdez-Fernández y Alfonso Gutiérrez-Santiago. "Patterns of Injury in the Spanish Football League Players". International Journal of Environmental Research and Public Health 19, n.º 1 (27 de diciembre de 2021): 252. http://dx.doi.org/10.3390/ijerph19010252.

Texto completo

Resumen

Background: The study of football injuries is a subject that concerns the scientific community. The problem of most of the available research is that it is mainly descriptive. The objective of this study is to discover and analyse the patterns of injury in the Spanish Football League (2016–2017 season). Methods: The sample data consisted of 136 given injuries identified by the official physicians of the football clubs. The analysis was performed by using traditional statistic tests, T-pattern detection and polar coordinate analysis. Results: The analysis revealed several patterns of injury: (a) The defender suffered a rupture of the hamstring muscles after a sprint, (b) knee sprains happened due to a received tackle, (c) fibrillar adductor rupture appeared mostly among defenders and (d) fibrillar ruptures took place mostly throughout the first part. Conclusions: There is a marked shift in the tendency regarding the player who gets more injured, from the midfielder to the defender. The most common injury was fibrillar rupture. The most common scenario in which this injury occurred was that in which the player injured himself after a sprint (24%). A week without competing seems to be insufficient as a prevention mechanism for injuries.

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Nozaki, Toshiki, Masayuki Noda, Toshihiro Ishibashi y Akio Morita. "Ruptured hidden intracranial aneurysm during mechanical thrombectomy: A case report". Surgical Neurology International 11 (16 de diciembre de 2020): 446. http://dx.doi.org/10.25259/sni_789_2020.

Texto completo

Resumen

Background: Acute ischemic stroke (AIS) patients have a higher prevalence of cerebral aneurysm than a healthy reference population. However, it was recently reported that cases of an unknown hidden aneurysm in AIS patients with large-vessel occlusion are rare. We report a rare case of subarachnoid hemorrhage (SAH) during mechanical thrombectomy (MT) using a stent retriever for AIS. Case Description: A 46-year-old patient with the right internal carotid artery terminal occlusion presented with the left-sided hemiparesis, hemispatial neglect, and dysarthria and underwent MT. Initial thrombectomy using a stent retriever and reperfusion catheter was unsuccessful. Angiography just before the second attempt showed SAH. Fortunately, we achieved recanalization of the thrombolysis in cerebral infarction 2b and hemostasis by lowering the blood pressure followed by coil embolization of the ruptured aneurysm. Only a few cases of ruptured aneurysms have been reported during MT using a stent retriever. Stent withdrawal is suspected to cause aneurysm rupture in cases with an unknown hidden middle cerebral artery bifurcation aneurysm. Conclusion: Preinterventional detection of a hidden aneurysm is difficult. Therefore, surgeons must always consider the possibility of a hidden aneurysm rupture in vessels distal to the occlusion site and make adequate preparations for the prompt treatment of ruptured aneurysms after MT.

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Lauric, Alexandra, Merih I. Baharoglu y Adel M. Malek. "Ruptured Status Discrimination Performance of Aspect Ratio, Height/Width, and Bottleneck Factor Is Highly Dependent on Aneurysm Sizing Methodology". Neurosurgery 71, n.º 1 (17 de febrero de 2012): 38–46. http://dx.doi.org/10.1227/neu.0b013e3182503bf9.

Texto completo

Resumen

Abstract BACKGROUND: Numerous size and shape parameters have historically been used to describe cerebral aneurysms and to correlate rupture status. These parameters are often inconsistently defined. OBJECTIVE: To evaluate the impact of definition variation on rupture status detection performance. METHODS: Catheter rotational angiographic data sets of 134 consecutive aneurysms (60 ruptured) were automatically measured in 3 dimensions with a validated algorithm. According to the literature, aneurysm height was assessed as both maximal and orthogonal distances from dome to neck. Maximal and orthogonal widths were defined perpendicular to height definitions. Neck size was evaluated as minimum, maximum, and average diameter of the neck plane. Aspect ratio (AR; height/neck), height/width ratio (HW), and bottleneck factor (BNF; width/neck) were evaluated for alternative definitions of each size variable. Univariate statistics were used to identify significant features and to compute the area under the curve (AUC) of the receiver-operating characteristic. RESULTS: The AR, HW, and BNF showed significant dependence on parameter definition. Statistical significance and performance varied widely, depending on alternative definitions: AR, AUC range of 0.59 to 0.75; HW, AUC range of 0.48 to 0.72; and BNF, AUC range of 0.57 to 0.72. Using maximal height, orthogonal width, and minimum neck resulted in the best AR, HW, and BNF performances. Compared with HW, AR and BNF were less sensitive to alternative definitions. CONCLUSION: Alternative aneurysm size definitions have a significant impact on prediction performance and optimal threshold values. Adoption of standard methodology and sizing nomenclature appears critical to ensure rupture detection performance and reproducibility across studies.

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Nikolenko, V. N., M. V. Sankova, A. D. Khegai, M. V. Oganesyan, N. A. Rizaeva, A. V. Sankov y L. A. Gridin. "Achilles tendon rupture prevention in physical activity and sports: predisposition factors". Sports medicine: research and practice 13, n.º 2 (31 de octubre de 2023): 30–38. http://dx.doi.org/10.47529/2223-2524.2023.2.9.

Texto completo

Resumen

Objective: to summarize all clinically significant factors determining the Achilles tendon predisposition to rupture.Materials and methods: the basis of this scientific-analytical review was the analysis of data from the electronic portals PubMed-NCBI, Google Academy, and “Scientific electronic e-Library.ru”.Results: the presented literature review indicates that injuries and ruptures of the Achilles tendon can be provoked by numerous factors, among which genetic predisposition, individual anatomico-morphological features of the tendon complex structure, initial connective tissue failure, pathological changes in the Achilles tendon structure itself, foot and ankle deformities are of great importance. Men are more susceptible to this injury. Tendon injuries are most common either in 30–40 years, or in the period from 60 to 80 years. Professional athletes and people who lead sedentary lifestyles and do not exercise properly are at risk of Achilles tendon ruptures. Concomitant metabolic disorders and use of some medications also play an important role in the predisposition to this injury. Local corticosteroid injections pose a particular tendon rupture risk. The combination of several established factors significantly increases the likelihood of this emergency.Conclusions: early detection of predisposition to Achilles tendon rupture will allow timely development of effective measures for its prevention in physical training and sports.

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

Bernath, Megan M., Sunu Mathew y Jerry Kovoor. "Craniofacial Trauma and Vascular Injury". Seminars in Interventional Radiology 38, n.º 01 (marzo de 2021): 045–52. http://dx.doi.org/10.1055/s-0041-1724012.

Texto completo

Resumen

AbstractCerebrovascular injury is a potentially devastating outcome following craniofacial trauma. Interventional radiologists play an important role in detecting, grading, and treating the different types of vascular injury. Computed tomography angiography plays a significant role in the detection of these injuries. Carotid-cavernous fistulas, extra-axial hematomas, pseudoaneurysms, and arterial lacerations are rare vessel injuries resulting from craniofacial trauma. If left untreated, these injuries can lead to vessel rupture and hemorrhage into surrounding areas. Acute management of these vessel injuries includes early identification with angiography and treatment with endovascular embolization. Endovascular therapy resolves vessel abnormalities and reduces the risk of vessel rupture and associated complications.

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

Cooper, Matthew A., Fedor N. Dultsev, Victor P. Ostanin y David Klenerman. "Separation and detection of bacteria using rupture event scanning". Analytica Chimica Acta 702, n.º 2 (septiembre de 2011): 233–38. http://dx.doi.org/10.1016/j.aca.2011.06.025.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

Cooper, Matthew A. "Acoustic Detection of Pathogens using Rupture Event Scanning (REVS)". Directions in Science 1 (5 de enero de 2002): 1–2. http://dx.doi.org/10.1100/tsw.2002.68.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Roussis, Periclis, Richard L. Rosemond, Cheryl Glass y Frank H. Boehm. "Pre term premature rupture of membranes: Detection of infection". American Journal of Obstetrics and Gynecology 165, n.º 4 (octubre de 1991): 1099–104. http://dx.doi.org/10.1016/0002-9378(91)90479-b.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Schultz, Colin. "Detection of supershear rupture in 2013 Craig, Alaska, earthquake". Eos, Transactions American Geophysical Union 95, n.º 4 (28 de enero de 2014): 40. http://dx.doi.org/10.1002/2014eo040010.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

Chatelain, Pascal y Dominique Didier. "Detection of myocardial rupture by cine-magnetic resonance imaging". American Journal of Cardiology 73, n.º 13 (mayo de 1994): 1033–35. http://dx.doi.org/10.1016/0002-9149(94)90169-4.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

Feng, Qiu, Bai Yongzhong, Qu Dingrong y Chen Wenwu. "Acoustic mechanism and characteristics of corrosion bubble rupture". Insight - Non-Destructive Testing and Condition Monitoring 64, n.º 2 (1 de febrero de 2022): 99–107. http://dx.doi.org/10.1784/insi.2022.64.2.99.

Texto completo

Resumen

Bubble rupture is one of the main acoustic emission (AE) sources for corrosion detection and the study of its acoustic characteristics is of great significance for corrosion identification. However, the stress state affects the form of bubble rupture, causing different acoustic characteristics. In this paper, the acoustic signal characteristics of two forms of bubble rupture and drag phenomena are investigated and the process of bubble rupture both near to and away from the metal surface is studied, mainly through theoretical calculation, numerical simulation and experimentation. A theoretical model of bubble rupture is established according to the volume of fluid (VOF) method. The finite element method is used to solve the plate displacement at the interface. Stress pulse theory is applied to calculate the AE signal amplitude of the bubble rupture. AE source characteristic parameters of the bubble rupture are then proposed. The experimental results demonstrate that the two forms of characteristics of the AE signals from corrosion bubble rupture are consistent with theoretical calculation and simulation results.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Artículos de revistas sobre el tema "Rupture detection"

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros