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. 26, 2019
Filed:
Mar. 25, 2015
The Regents of the University of California, Oakland, CA (US);
Toshiba Medical Systems Corporation, Otawara-shi, JP;
Jinyi Qi, Davis, CA (US);
Jian Zhou, Davis, CA (US);
Hongwei Ye, Kenosha, WI (US);
Wenli Wang, Briarcliff Manor, NY (US);
The Regents of the University of California, Oakland, CA (US);
TOSHIBA MEDICAL SYSTEMS CORPORATION, Otawara-shi, JP;
Abstract
A method of calculating a system matrix for time-of-flight (TOF) list-mode reconstruction of positron-emission tomography (PET) images, the method including determining a TOF geometric projection matrix G including effects of object attenuation; estimating an image-blurring matrix R in image space; obtaining a diagonal matrix D that includes TOF-based normalization factor; and calculating the system matrix H as H=DGR.