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公开(公告)号：US20230206517A1
公开(公告)日：2023-06-29
申请号：US18175492
申请日：2023-02-27
发明人： Yang ZHANG , Shu LIAO , Liuchun HE , Zilin DENG
CPC分类号： G06T11/005 , G06T7/0012 , G06T2207/10104 , G06T2207/20081
摘要： A system for PET image reconstruction is provided. The system may obtain PET data of a subject. The PET data may be associated with a plurality of coincidence events, which includes scattering events. The system may also generate a preliminary scatter sinogram relating to the scattering events based on the PET data. The system may also generate a target scatter sinogram relating to the scattering events by applying a scatter sinogram generator based on the preliminary scatter sinogram. The target scatter sinogram may have a higher image quality than the preliminary scatter sinogram. The system may further reconstruct a target PET image of the subject based on the PET data and the target scatter sinogram.
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公开(公告)号：US20200342637A1
公开(公告)日：2020-10-29
申请号：US16858803
申请日：2020-04-27
发明人： Yang ZHANG , Shu LIAO , Liuchun HE , Zilin DENG
摘要： A system for PET image reconstruction is provided. The system may obtain PET data of a subject. The PET data may be associated with a plurality of coincidence events, which includes scattering events. The system may also generate a preliminary scatter sinogram relating to the scattering events based on the PET data. The system may also generate a target scatter sinogram relating to the scattering events by applying a scatter sinogram generator based on the preliminary scatter sinogram. The target scatter sinogram may have a higher image quality than the preliminary scatter sinogram. The system may further reconstruct a target PET image of the subject based on the PET data and the target scatter sinogram.
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