[Effect of Whole-body Continuous Scanning Speed of Bone Scintigraphy on the Detectability of Vertebral Lesions].
| Autor: | Kobayashi T; Department of Radiological Technology, Toyokawa City Hospital., Ichikawa H; Department of Radiology, Toyohashi Municipal Hospital., Kato T; Department of Radiology, Toyohashi Municipal Hospital., Nagura H; Department of Radiological Technology, Toyokawa City Hospital., Michino S; Department of Radiological Technology, Toyokawa City Hospital., Misu Y; Department of Radiology, Narita Memorial Hospital., Shimada H; Department of Radiology, Toyohashi Municipal Hospital., Watanabe Y; Department of Radiological Technology, Toyokawa City Hospital. |
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| Jazyk: | japonština |
| Zdroj: | Nihon Hoshasen Gijutsu Gakkai zasshi [Nihon Hoshasen Gijutsu Gakkai Zasshi] 2024 Nov 20; Vol. 80 (11), pp. 1198-1204. Date of Electronic Publication: 2024 Oct 03. |
| DOI: | 10.6009/jjrt.2024-1494 |
| Abstrakt: | Purpose: This study aimed to evaluate the influence of the scanning speed of whole-body scans on the detectability of positive vertebral bone images in bone scintigraphy. Methods: We used SIM 2 bone phantom to obtain planar images equivalent to scanning speeds of 15, 17, and 20 cm/min. Receiver operating characteristic (ROC) analysis to evaluate lesion detectability and average count (Ct)/pixel, contrast ratio, and contrast-to-noise ratio (CNR) of the normal vertebral body and the simulated tumor site were measured. Results: The average area under the ROC curves (AUC) was 0.936, 0.929, and 0.915 at speeds of 15, 17, and 20 cm/min, respectively. The average AUC at 20 cm/min was significantly lower than that at 15 cm/min (p<0.05) . However, no other significant differences were found (p=0.448, 0.139). The average Ct/pixel and CNR decreased at 15, 17, and 20 cm/min. The contrast ratio did not change. Conclusion: The results showed that increasing the scan speed from 15 cm/min to 17 cm/min had no effect on the detection of vertebral lesions. Thus, it is possible to reduce the scan time, albeit slightly. |
| Databáze: | MEDLINE |
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