Edge preserving penalized reconstruction for step-and-shoot and motion compensated positron emission tomography (PET) studies

    公开(公告)号:US12131410B2

    公开(公告)日:2024-10-29

    申请号:US17293958

    申请日:2019-11-15

    IPC分类号: G06T11/00 A61B6/03

    摘要: A non-transitory computer-readable medium stores instructions readable and executable by a workstation (18) including at least one electronic processor (20) to perform an imaging method (100). The method includes: receiving imaging data on a frame by frame basis for frames along an axial direction with neighboring frames overlapping along the axial direction wherein the frames include at least a volume (k) and a succeeding volume (k+1) at least partially overlapping the volume (k) along the axial direction; and generating an image of the volume (k) using an iterative image reconstruction process in which an iteration of the iterative image reconstruction process includes: computing a local penalty function for suppressing noise over the volume (k) including reducing the value of the local penalty function in an overlap region; generating an update image of the volume (k) using imaging data from the volume (k) and further using the local penalty function.