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Relevant bibliographies by topics / 360° CzT SPECT camera

Academic literature on the topic '360° CzT SPECT camera'

Author: Grafiati

Published: 7 July 2024

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Contents

Journal articles
Dissertations / Theses
Book chapters
Conference papers

Journal articles on the topic "360° CzT SPECT camera":

1

Piatkova, Yuliya, Pierre Payoux, Caroline Boursier, Manon Bordonne, Veronique Roch, Pierre-Yves Marie, Gabriela Hossu, Laëtitia Imbert, and Antoine Verger. "Prospective Paired Comparison of 123I-FP-CIT SPECT Images Obtained With a 360°-CZT and a Conventional Camera." Clinical Nuclear Medicine 47, no. 1 (January 2022): 14–20. http://dx.doi.org/10.1097/rlu.0000000000003969.

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2

Bordonne, Manon, Pierre-Yves Marie, Laetitia Imbert, and Antoine Verger. "Brain perfusion SPECT acquired using a dedicated brain configuration on a 360° whole-body CZT-camera." Journal of Neuroradiology 47, no. 2 (March 2020): 180–81. http://dx.doi.org/10.1016/j.neurad.2019.11.002.

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3

Chevalier, Elodie, Caroline Boursier, Marine Claudin, Pierre-Yves Marie, and Laetitia Imbert. "Feasibility of 177Lu Therapy Monitoring Using Fast Whole-Body SPECT Recordings Provided by a High-Speed 360° CZT Camera." Clinical Nuclear Medicine 45, no. 11 (June 26, 2020): e493-e494. http://dx.doi.org/10.1097/rlu.0000000000003169.

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4

Melki, Saifeddine, Mohammad Bilal Chawki, Pierre-Yves Marie, Laetitia Imbert, and Antoine Verger. "Augmented planar bone scintigraphy obtained from a whole-body SPECT recording of less than 20 min with a high-sensitivity 360° CZT camera." European Journal of Nuclear Medicine and Molecular Imaging 47, no. 5 (October 12, 2019): 1329–31. http://dx.doi.org/10.1007/s00259-019-04525-y.

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5

Cantoni, Valeria, Roberta Green, Carlo Ricciardi, Roberta Assante, Leandro Donisi, Emilia Zampella, Giuseppe Cesarelli, et al. "Comparing the Prognostic Value of Stress Myocardial Perfusion Imaging by Conventional and Cadmium-Zinc Telluride Single-Photon Emission Computed Tomography through a Machine Learning Approach." Computational and Mathematical Methods in Medicine 2021 (October 16, 2021): 1–8. http://dx.doi.org/10.1155/2021/5288844.

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Abstract:

We compared the prognostic value of myocardial perfusion imaging (MPI) by conventional- (C-) single-photon emission computed tomography (SPECT) and cadmium-zinc-telluride- (CZT-) SPECT in a cohort of patients with suspected or known coronary artery disease (CAD) using machine learning (ML) algorithms. A total of 453 consecutive patients underwent stress MPI by both C-SPECT and CZT-SPECT. The outcome was a composite end point of all-cause death, cardiac death, nonfatal myocardial infarction, or coronary revascularization procedures whichever occurred first. ML analysis performed through the implementation of random forest (RF) and k -nearest neighbors (KNN) algorithms proved that CZT-SPECT has greater accuracy than C-SPECT in detecting CAD. For both algorithms, the sensitivity of CZT-SPECT (96% for RF and 60% for KNN) was greater than that of C-SPECT (88% for RF and 53% for KNN). A preliminary univariate analysis was performed through Mann-Whitney tests separately on the features of each camera in order to understand which ones could distinguish patients who will experience an adverse event from those who will not. Then, a machine learning analysis was performed by using Matlab (v. 2019b). Tree, KNN, support vector machine (SVM), Naïve Bayes, and RF were implemented twice: first, the analysis was performed on the as-is dataset; then, since the dataset was imbalanced (patients experiencing an adverse event were lower than the others), the analysis was performed again after balancing the classes through the Synthetic Minority Oversampling Technique. According to KNN and SVM with and without balancing the classes, the accuracy ( p value = 0.02 and p value = 0.01) and recall ( p value = 0.001 and p value = 0.03) of the CZT-SPECT were greater than those obtained by C-SPECT in a statistically significant way. ML approach showed that although the prognostic value of stress MPI by C-SPECT and CZT-SPECT is comparable, CZT-SPECT seems to have higher accuracy and recall.

6

Bouchareb, Yassine, Afrah AlSaadi, Jawa Zabah, Anjali Jain, Aziza Al-Jabri, Peter Phiri, Jian Qing Shi, Gayathri Delanerolle, and Srinivasa Rao Sirasanagandla. "Technological Advances in SPECT and SPECT/CT Imaging." Diagnostics 14, no. 13 (July 4, 2024): 1431. http://dx.doi.org/10.3390/diagnostics14131431.

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Single photon emission tomography/computed tomography (SPECT/CT) is a mature imaging technology with a dynamic role in the diagnosis and monitoring of a wide array of diseases. This paper reviews the technological advances, clinical impact, and future directions of SPECT and SPECT/CT imaging. The focus of this review is on signal amplifier devices, detector materials, camera head and collimator designs, image reconstruction techniques, and quantitative methods. Bulky photomultiplier tubes (PMTs) are being replaced by position-sensitive PMTs (PSPMTs), avalanche photodiodes (APDs), and silicon PMs to achieve higher detection efficiency and improved energy resolution and spatial resolution. Most recently, new SPECT cameras have been designed for cardiac imaging. The new design involves using specialised collimators in conjunction with conventional sodium iodide detectors (NaI(Tl)) or an L-shaped camera head, which utilises semiconductor detector materials such as CdZnTe (CZT: cadmium–zinc–telluride). The clinical benefits of the new design include shorter scanning times, improved image quality, enhanced patient comfort, reduced claustrophobic effects, and decreased overall size, particularly in specialised clinical centres. These noticeable improvements are also attributed to the implementation of resolution-recovery iterative reconstructions. Immense efforts have been made to establish SPECT and SPECT/CT imaging as quantitative tools by incorporating camera-specific modelling. Moreover, this review includes clinical examples in oncology, neurology, cardiology, musculoskeletal, and infection, demonstrating the impact of these advancements on clinical practice in radiology and molecular imaging departments.

7

Weng, Fenghua, Srijeeta Bagchi, Yunlong Zan, Qiu Huang, and Youngho Seo. "An energy-optimized collimator design for a CZT-based SPECT camera." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 806 (January 2016): 330–39. http://dx.doi.org/10.1016/j.nima.2015.09.115.

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8

Duvall, W. Lane, Lori B. Croft, Tapan Godiwala, Eric Ginsberg, Titus George, and Milena J. Henzlova. "Reduced isotope dose with rapid SPECT MPI imaging: Initial experience with a CZT SPECT camera." Journal of Nuclear Cardiology 17, no. 6 (November 12, 2010): 1009–14. http://dx.doi.org/10.1007/s12350-010-9215-5.

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9

Yoo, Ik Dong, In Young Jo, Geum Cheol Jeong, Yong Kyun Won, Du Shin Jeong, and Sang Mi Lee. "Quantitative Scintigraphy Imaging of Lingual Raynaud’s Phenomenon Using 3-Dimensional-Ring Cadmium-Zinc-Telluride Single-Photon Emission Computed Tomography/Computed Tomography." Tomography 8, no. 4 (August 17, 2022): 2042–48. http://dx.doi.org/10.3390/tomography8040171.

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Abstract:

Perfusion scintigraphy with the acquisition of planar blood flow and pool images of bilateral hands has been used to aid diagnosis and to evaluate treatment response to Raynaud’s phenomenon (decreased blood flow to hand or foot). However, because of the difficulty in imaging the tongue area with a conventional gamma camera, perfusion scintigraphy imaging of patients with lingual Raynaud’s phenomenon has yet to be reported. Here, we report the case of a 59-year-old man with lingual Raynaud’s phenomenon in which blood pool imaging of the tongue was performed using three-dimensional (3D)-ring cadmium-zinc-telluride (CZT) single-photon emission computed tomography/computed tomography (SPECT/CT). During follow-up, the patient’s lingual symptoms had worsened, and follow-up blood pool SPECT/CT images also revealed decreased blood pool uptake of the tongue, showing a decreased blood pool of more than 25% on quantitative analysis. This case suggests that blood pool imaging of the tongue using 3D-ring CZT SPECT/CT has clinical significance in evaluating patients with lingual Raynaud’s phenomenon.

10

Duvall, W. Lane, Lori B. Croft, Eric S. Ginsberg, Andrew J. Einstein, Krista A. Guma, Titus George, and Milena J. Henzlova. "Reduced isotope dose and imaging time with a high-efficiency CZT SPECT camera." Journal of Nuclear Cardiology 18, no. 5 (April 29, 2011): 847–57. http://dx.doi.org/10.1007/s12350-011-9379-7.

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More sources

Dissertations / Theses on the topic "360° CzT SPECT camera":

1

Desmonts, Cedric. "Apport des technologies TEMP et TEP numériques en médecine nucléaire dans le domaine de l’oncologie clinique et préclinique." Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMC429.

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Abstract:

La médecine nucléaire a connu ces dernières années d’importantes évolutions technologiques grâce à l’arrivée de caméras dites numériques, qui reposent sur l’utilisation de détecteurs semi-conducteurs. En tomographie d’émission monophotonique (TEMP), cette technologie a d’abord été introduite sur des caméras CzT dédiées à l’exploration cardiaque. Plus récemment, des caméras CzT 360° à champ de vue étendu ont été développées pour permettre des explorations tomographiques corps entier. De même, les caméras utilisées en tomographie par émission de positon (TEP) ont connu une transition vers des technologies numériques grâce à l’utilisation de nouveaux détecteurs SiPM. Ce travail a permis d’évaluer les performances de ces caméras TEMP et TEP numériques en médecine nucléaire dans le domaine de l’oncologie clinique et préclinique. Nous avons ainsi démontré les gains en sensibilité, en résolution en énergie et en contraste image obtenus à l’aide des caméras CzT 360° par rapport aux caméras de Anger conventionnelles. Il a également été démontré la faisabilité d’utiliser ce type de caméra, initialement développée pour l’homme, pour réaliser de l’imagerie chez le petit animal. Dans un second temps, nous avons évalué sur fantôme les caméras TEP SiPM pour une utilisation en préclinique. Nous avons ainsi mesuré des performances s’approchant de celles obtenues avec des caméras microTEP dédiées, en permettant l’imagerie simultanée de quatre animaux, et montré la possibilité de réaliser de la quantification avec une précision suffisante en oncologie préclinique
In recent years, nuclear medicine has undergone significant technological advances with the introduction of digital cameras based on the use of semiconductor detectors. In single-photon emission computed tomography (SPECT), this technology was first introduced on dedicated cardiac CzT cameras. More recently, 360° CzT cameras with extended field-of-view have been developed to enable whole-body tomographic explorations. Similarly, the cameras used in positron emission tomography (PET) have undergone a transition to digital technologies thanks to the use of new SiPM-based detectors. This work has allowed for the evaluation of the performance of these digital SPECT and PET cameras in nuclear medicine, within the field of clinical and preclinical oncology. We have thus demonstrated the improvements in sensitivity, energy resolution, and image contrast achieved through the use of 360° CzT cameras compared to conventional Anger cameras. Additionally, we demonstrated the feasibility of using this type of camera developed for humans, to perform preclinical imaging in small animals. Furthermore, we have evaluated SiPM-based PET cameras using phantoms for potential preclinical applications. We have thus measured performance approaching that obtained with dedicated microPET cameras, enabling simultaneous imaging of four animals, and demonstrated the ability to perform accurate quantification in preclinical oncology

Book chapters on the topic "360° CzT SPECT camera":

1

de Oliveira Brito, Juliana Brenande, Gary R. Small, Kathryn J. Ascah, R. Glenn Wells, and Terrence D. Ruddy. "Measurement of Myocardial Blood Flow by SPECT." In Nuclear Cardiac Imaging Companion Atlas, 30–31. Oxford University PressNew York, 2024. http://dx.doi.org/10.1093/med/9780197521434.003.0010.

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Abstract Stress MPI with SPECT and PET is widely used for diagnosis and determining prognosis in patients with suspected or known CAD. However, a major limitation of MPI is the use of relative perfusion for diagnosis of obstructive CAD and leads to underestimation of the extent of obstructive CAD. However, MBF and MFR can be measured with PET and provide additional diagnostic and prognostic value over relative PET MPI. Similarly, SPECT measurement of MBF may improve the clinical value of SPECT and greatly increase the availability and use of MBF with MPI. The accuracy of CZT SPECT measurement of MBF has been validated in clinical evaluations in patients undergoing coronary angiography and PET imaging. Reduced global stress MBF and MFR can identify the presence of severe MVD. Regional reductions in stress MBF and MFR have high diagnostic accuracy for specific vessel CAD. Reduced global and regional SPECT MFR can predict reduced global and regional PET MFR. SPECT measurement of MBF has good day-to-day repeatability and interobserver variability. We describe the use of SPECT MBF at the University of Ottawa Heart Institute, including image acquisition and processing and clinical interpretation of test results with case examples. The clinical use of SPECT MBF is in the early stages of implementation. Protocols including radiotracers, camera systems and software need to be standardized. Multicenter studies are necessary to better define the diagnostic value of CZT SPECT MBF for obstructive CAD and the incremental prognostic value of SPECT MBF measurement compared to relative MPI.

2

Brito, Juliana Brenande de Oliveira, Gary R. Small, Kathryn J. Ascah, R. Glenn Wells, and Terrence D. Ruddy. "Measurement of Myocardial Blood Flow by SPECT." In Nuclear Cardiac Imaging, edited by Ami E. Iskandrian and Fadi G. Hage, 208–29. 6th ed. Oxford University PressNew York, 2024. http://dx.doi.org/10.1093/med/9780190095659.003.0010.

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Abstract:

Abstract Stress MPI with SPECT and PET is widely used for diagnosis and determining prognosis in patients with suspected or known CAD. However, a major limitation of MPI is the use of relative perfusion for diagnosis of obstructive CAD and leads to underestimation of the extent of obstructive CAD. However, MBF and MFR can be measured with PET and provide additional diagnostic and prognostic value over relative PET MPI. Similarly, SPECT measurement of MBF may improve the clinical value of SPECT and greatly increase the availability and use of MBF with MPI. The accuracy of CZT SPECT measurement of MBF has been validated in clinical evaluations in patients undergoing coronary angiography and PET imaging. Reduced global stress MBF and MFR can identify the presence of severe MVD. Regional reductions in stress MBF and MFR have high diagnostic accuracy for specific vessel CAD. Reduced global and regional SPECT MFR can predict reduced global and regional PET MFR. SPECT measurement of MBF has good day-to-day repeatability and interobserver variability. We describe the use of SPECT MBF at the University of Ottawa Heart Institute, including image acquisition and processing and clinical interpretation of test results with case examples. The clinical use of SPECT MBF is in the early stages of implementation. Protocols including radiotracers, camera systems and software need to be standardized. Multicenter studies are necessary to better define the diagnostic value of CZT SPECT MBF for obstructive CAD and the incremental prognostic value of SPECT MBF measurement compared to relative MPI.

Conference papers on the topic "360° CzT SPECT camera":

1

Imbert, L., P. Y. Marie, E. Galbrun, S. Poussier, D. Wolf, G. Karcher, and A. Noel. "Initial assessment of the Monte-Carlo simulation of SPECT recording with the new region-centric CZT “DSPECT” camera." In 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference (2012 NSS/MIC). IEEE, 2012. http://dx.doi.org/10.1109/nssmic.2012.6551581.

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