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Data-driven respiratory gating was previous developed to extract respiratory information directly from PET listmode data. It was also shown that different regions may contribute differently to the accuracy of the motion signal, affecting the successful rate of this method. The goal of this study is to develop and evaluate methods that automatically determine the optimum regions to acquire respiratory...
Patient motion can cause image blurring effects and mismatch of attenuation maps during a brain scan. To detect and correct patient head movement during a PET scan, external devices are usually used. The goal of this study is to present a method that automatically detects and corrects rigid patient motion in real time, without any additional external device using only the listmode data. Within each...
An important challenge in positron emission tomography (PET) is the development of dedicated small-animal PET (muPET) systems having high sensitivity. In this paper, we investigate the use of an opposing pair of large-area detectors having high detection efficiency and moderate depth-of-interaction resolution in a compact scanner geometry for achieving a high system sensitivity. Substantial resolution...
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