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Funakoshi, Kazuto, Yamane, Tomohiko, Kozawa, Eito, Matsunari, Ichiro. (1403). Improving the image quality of short-time bone SPECT using cadmium-zinc-telluride detectors with SwiftScan. , 13(1), 87-93. doi: 10.22038/aojnmb.2024.76919.1543
Kazuto Funakoshi; Tomohiko Yamane; Eito Kozawa; Ichiro Matsunari. "Improving the image quality of short-time bone SPECT using cadmium-zinc-telluride detectors with SwiftScan". , 13, 1, 1403, 87-93. doi: 10.22038/aojnmb.2024.76919.1543
Funakoshi, Kazuto, Yamane, Tomohiko, Kozawa, Eito, Matsunari, Ichiro. (1403). 'Improving the image quality of short-time bone SPECT using cadmium-zinc-telluride detectors with SwiftScan', , 13(1), pp. 87-93. doi: 10.22038/aojnmb.2024.76919.1543
Funakoshi, Kazuto, Yamane, Tomohiko, Kozawa, Eito, Matsunari, Ichiro. Improving the image quality of short-time bone SPECT using cadmium-zinc-telluride detectors with SwiftScan. , 1403; 13(1): 87-93. doi: 10.22038/aojnmb.2024.76919.1543

Improving the image quality of short-time bone SPECT using cadmium-zinc-telluride detectors with SwiftScan

Asia Oceania Journal of Nuclear Medicine and Biology
مقاله 10، دوره 13، شماره 1، فروردین 2025، صفحه 87-93    اصل مقاله (1.24 M)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22038/aojnmb.2024.76919.1543
نویسندگان
Kazuto Funakoshi* 1؛ Tomohiko Yamane2، 3؛ Eito Kozawa4؛ Ichiro Matsunari5
1Department of Radiation Oncology, Saitama Medical University Hospital, Saitama, Japan
2Department of Molecular Imaging Research, Kobe City Medical Center General Hospital, Hyogo, Japan
3Department of Nuclear Medicine, International Medical Center, Saitama Medical University, Saitama, Japan
4Department of Radiology, Saitama Medical University Hospital, Saitama, Japan
5Department of Nuclear Medicine, Saitama Medical University Hospital, Saitama, Japan
چکیده
Objective(s): This study aimed to evaluate the quality and associated quantitative values of bone single-photon emission computed tomography (SPECT) with and without SwiftScan using a semiconductor camera equipped with a cadmium-zinc-telluride detector.
Methods: Ten patients with bone metastases from prostate cancer who underwent list-mode SPECT/computed tomography using a whole-body semiconductor camera participated in this study. A total of 130 metastatic lesions from 10 patients were analyzed. Standard SPECT images were obtained approximately 3 h later, and the images were constructed with and without SwiftScan.
Results: The visual assessment of 3-dimensional maximum intensity projection images showed that when an image quality score of 4 (good) or better was considered clinically acceptable, it was maintained at 4 or better in the 75% and 50% scans with SwiftScan, whereas only the 75% scan was considered acceptable without SwiftScan. The intraclass correlation coefficient was 0.952 at 5% for the standard time without SwiftScan and 0.990 with SwiftScan. The maximum standardized uptake value (SUVmax) changes were 0 to 9.5 (median 1.1) at 75%, 0.1 to 11.5 (1.65) at 50%, 0 to 15.7 (2.1) at 25%, 0.1 to 33.2 (4.2) at 10%, 0.2 to 8.9 (5.65) at 5% without SwiftScan. On the contrary, the SUVmax changes in absolute value were 0 to 5.4 (median 0.8) at 75%, 0 to 6.5 (1.4) at 50%, 0 to 19.1 (1.7) at 25%, 0 to 24.2 (2.8) at 10%, 0 to 29.9 (2.6) at 5% with SwiftScan. The contrast-to-noise ratios (CNR) were 95.3 at 75%, 88.3 at 50%, 69.2 at 25%, 45.7 at 10%, and 31.6 at 5% without SwiftScan, and 96.9, 91.7, 78.0, 71.6, and 62.0, respectively, using SwiftScan.
Conclusion: With the use of SwiftScan, a 50% reduction in acquisition time was considered acceptable for image quality with reproducible quantitative indices such as SUVmax and CNR.
کلیدواژه‌ها
Short-time bone SPECT/CT؛ CZT semiconductor camera؛ SwiftScan
مراجع
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