AI Article Synopsis
- This study investigated how different scanning speeds of whole-body scans affect the ability to detect positive vertebral bone images in bone scintigraphy.
- Using a simulated bone model, researchers tested speeds of 15, 17, and 20 cm/min and analyzed various metrics like lesion detectability and image clarity.
- Results indicated that while the highest scan speed (20 cm/min) reduced lesion detectability compared to the slowest speed (15 cm/min), speeds of 15 and 17 cm/min showed no significant differences, suggesting a slight reduction in scan time is feasible without losing accuracy.
Article Abstract
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 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.
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| http://dx.doi.org/10.6009/jjrt.2024-1494 | DOI Listing |
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