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- W2529428859 abstract "Time-of-flight (TOF) PET imaging enables a more precise localization of an emitted event along a given line-of-response (LOR). The additional temporal information could be used to restrict the effective coincidence window in the scanner to conform to the object being imaged. This can be achieved by truncating the sinogram bins along the TOF direction, keeping only those that contain LORs passing through the object, while further truncation can be done in the transaxial direction. When the region of interest (ROI) is localized and known, TOF sinogram truncation could then be used to exclude data not only outside the patient outline but further inside as well. One specific type of imaging which could substantially benefit from such an approach is dynamic imaging. By truncating the sinograms to conform to a specific ROI which is often needed in dynamic imaging, significant computation benefits could be obtained. Moreover, additional benefits could be realized through reduced propagation of errors specific to dynamic imaging. Using simulated and clinical studies, we investigate the feasibility and benefits of limited FOV imaging from truncated TOF sinograms in dynamic imaging." @default.
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- W2529428859 date "2015-10-01" @default.
- W2529428859 modified "2023-09-23" @default.
- W2529428859 title "Limited field-of-view dynamic PET imaging from truncated time-of-flight sinograms" @default.
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- W2529428859 doi "https://doi.org/10.1109/nssmic.2015.7582114" @default.
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