Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Method and device for calculating voxels defining a tube-of-response using a central-ray-filling algorithm
A method and device for calculating voxels defining a tube-of-response (TOR) within a reconstruction space of a Positron Emission Tomography (PET) apparatus having a plurality of crystals, the voxels within the reconstruction space having a predetermined size. The method includes selecting a center on each of two crystals defining a line of response, determining intersected voxels within the reconstruction space that intersect a straight line connecting the centers of the two crystals, calculating neighboring voxels of the intersected voxels, based on an expansion direction and an expansion distance, merging the intersected voxels and the neighboring voxels to form a merged set of voxels, and deleting duplicate voxels in the merged set of voxels to generate the voxels defining the TOR.
Kabushiki Kaisha Toshiba Toshiba Medical Systems Corporation
G
G01T
inventional
Hongwei Wenli
Ye Wang