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. 10, 2015
Filed:
Feb. 15, 2012
Yoshihiro Yamada, Kyoto, JP;
Yoshihiro Yamada, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
When calculating a system matrix (detection probability), adjustment is made by fitting a point spread function (PSF) expressed by a Gauss function to a profile of count values of radiation with respect to a distance from a point source which emits radiation of the same type as the positron-emitting drug, and a distance range of the above PSF is adjusted for each layer in a depth direction of gamma-ray detectors indicating an incident direction in which the radiation strikes. By calculating the system matrix (detection probability) after adjusting the distance range of the function for each layer, improvement can be made in image quality of a reconstructed image.