ATTENUATION MAP RECONSTRUCTION FROM TOF PET DATA

摘要

Advantageous methods, systems, and computer-readable media are provided. An attenuation map for an image can be reconstructed with no known sub-region of the attenuation map prior to performing the method. Gradient data of an attenuation sinogram can be estimated, and an algorithm can be performed to reconstruct the attenuation map from the estimated gradient data of the attenuation sinogram.

主权项

1. A method for reconstructing an attenuation map for a positron emission tomography (PET) image, the method comprising:
obtaining time-of-flight (TOF) PET data of the PET image; estimating the gradient of an attenuation sinogram; and determining, by a processor, the attenuation map using the estimated gradient of the attenuation sinogram by performing an algorithm, wherein no sub-region in the attenuation map is known prior to performing the method.