Oblon, McClelland, Maier & Neustadt, L.L.P.
Cylinder source software-positioning method for PET calibration and image quality assurance
A method and system for determining a position of a source including obtaining prompt data and related delayed data from a Positron Emission Tomography (PET) scanner, generating a sinogram from the prompt data, generating crystal efficiency correction factors by performing a normalization calibration based on the obtained delayed data, performing normalization correction on the generated sinogram based on the crystal efficiency correction factors to generate a corrected sinogram, rebinning the corrected sinogram to generate a plurality of two-dimensional sinogram slices, and determining a central axis for each of the plurality of two-dimensional sinogram slices using a center estimation process.
TOSHIBA MEDICAL SYSTEMS CORPORATION
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inventional inventional additional additional
Wenli Xiaofeng Hongwei
Wang Niu Ye