Overall, WBR half-time and half-dose image quality was judged as superior to OSEM image quality in both arms of the study. There was no statistically significant difference between the two SPECT protocols in identifying the extent or severity of perfusion defects.
According to Dr. DePuey, "The results of this study demonstrate that WBR is a powerful means of reducing dose without sacrificing image quality and diagnostic accuracy. I would recommend that all nuclear medicine laboratories adopt some strategy for reducing patient radiation exposure incorporating WBR or others techniques that have proven effective."
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Dr. DePuey notes that new SPECT cameras with multiple focused detectors are another effective dose-reduction solution. "Wide beam reconstruction technology, however, is a software-only solution," he says. "For sites unable to budget for a major hardware acquisition, WBR provides an equally effective, more affordable answer."
About UltraSPECT
UltraSPECT Ltd. is a leading provider of image reconstruction products dedicated to enhancing the performance of gamma cameras and positron emission tomography (PET) scanners.
For more information visit: www.ultraspect.com
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