Abstract:Objective To investigate the imaging manifestations and generation principles of various artifacts in 18F-deoxyglucose (FDG) coincidence imaging. Methods The images of patients examined by 18F-FDG coincidence imaging were retrospectively analyzed and the artifacts of the images were classified according to the generation reasons. Then uncommon physiological 18F-FDG uptakes in clinic were analyzed and summarized. Results Common artifacts included breathing artifacts and various high-density material artifacts as well as injection point leakage and radioactive contamination in vitor. Uncommon physiological uptakes included endometrial uptake and fat intake. Conclusion The imaging manifestations of artifacts in 18F-FDG coincidence images could be classified as "hot zones" and "cold zones" and the mainly imaging manifestations of uncommon physiological uptakes was "hot zones". Uncommon physiological uptakes were mostly related to examination techniques and preparation for examination.
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SU Jian, CAO Yan-xia, SHI Ning. Identification and Analysis of Common Artifacts in 18F-FDG Coincidence Imaging. China Medical Devices, 2014, 29(8): 158-160.
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