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:
Feb. 15, 2011
Filed:
Sep. 17, 2008
Mu Chen, Knoxville, TN (US);
Vladimir Panin, Knoxville, TN (US);
Michael E. Casey, Louisville, TN (US);
Mu Chen, Knoxville, TN (US);
Vladimir Panin, Knoxville, TN (US);
Michael E. Casey, Louisville, TN (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Abstract
The present invention provides a method for estimating crystal efficiency in a PET detector that takes axial compression into account. It does so via an iterative methodology in which a μ-map is first generated and then is used to obtain a solution for the equation wherein gis a geometric factor for LOR(i,j), εand εare the efficiencies for crystal i and crystal j, and xis the line integral of the source distribution along LOR(i,j). Once efficiencies are determined, they are used to calibrate the PET detector.