The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2013
Filed:
Sep. 28, 2009
Derek W. Austin, Knoxville, TN (US);
Mu Chen, Knoxville, TN (US);
Bing Feng, Knoxville, TN (US);
Robert A. Mintzer, Knoxville, TN (US);
Anne M. Smith, Lenoir City, TN (US);
Derek W. Austin, Knoxville, TN (US);
Mu Chen, Knoxville, TN (US);
Bing Feng, Knoxville, TN (US);
Robert A. Mintzer, Knoxville, TN (US);
Anne M. Smith, Lenoir City, TN (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Abstract
A system and method for reconstructing single photon emission computed tomography data acquired with a pinhole collimator includes sub-dividing each voxel in the imaging target object space into sub-voxels and sub-dividing each of the detector bins in the gamma camera detector into sub-bins, connecting the centers of each of the sub-voxels to each of the detector sub-bins through a pinhole provided in the pinhole collimator by ray tracing and for each ray connecting the centers of each of the sub-voxels to each of the detector sub-bins, the transmission probability is calculated by analytically solving the intersections between the ray and the pinhole surfaces. Then, a geometric-response-function of the pinhole collimator is computed which is then convolved with the intrinsic-response-function of the detector to obtain the PSF.