2-D Feasibility Study of Joint Reconstruction of Attenuation and Activity in Limited Angle TOF-PET

Marina Vergara,Ahmadreza Rezaei,Georg Schramm,Maria Jose Rodriguez-Alvarez,Jose Maria Benlloch Baviera,Johan Nuyts

IEEE Transactions on Radiation and Plasma Medical Sciences（2021）

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摘要

Several research groups are studying organ-dedicated limited angle positron emission tomography (PET) systems to optimize performance-cost ratio, sensitivity, access to the patient, and/or flexibility. Often open systems are considered, typically consisting of two detector panels of various sizes. Such systems provide incomplete sampling due to limited angular coverage and/or truncation, which lea...

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关键词

Attenuation,Image reconstruction,Positron emission tomography,Imaging,Plasmas,Image resolution,Sensitivity

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