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:
Nov. 29, 2016
Filed:
Apr. 16, 2015
Siemens Medical Solutions Usa, Inc, Malvern, PA (US);
Harold E. Rothfuss, Knoxville, TN (US);
Vladimir Y. Panin, Knoxville, TN (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Abstract
A process for operating a PET scanner includes acquiring, at a plurality of detector blocks of the PET scanner, emission data of gamma photons of a first energy level originating from annihilation events associated with radioactivity of a phantom in a field of view of the PET scanner. Based on the emission data, an emission block-pair scattering model is generated. The process includes acquiring counts of gamma photons of a second energy level originating from intrinsic background radiation of scintillator crystals of the detector blocks, without any phantom in the field of view, to provide blank scan data for the second energy level. A sinogram is generated based on the blank scan data for the second energy level. The emission block-pair scattering model is added to a scaled version of the sinogram to yield a composite model.