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. 19, 2024
Filed:
Jan. 24, 2019
Koninklijke Philips N.v., Eindhoven, NL;
Xiyun Song, San Jose, CA (US);
Jinghan Ye, Livermore, CA (US);
Yanfei Mao, Highland Heights, OH (US);
Chuanyong Bai, Solon, OH (US);
Andriy Andreyev, Willoughby Hills, OH (US);
Gregory Doughty, Beachwood, OH (US);
Leonid Romanov, Mayfield Heights, OH (US);
Zhiqiang Hu, Twinsburg, OH (US);
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
An image reconstruction method includes: determining singles rates of radiation detectors in a frame of imaging data detected by the radiation detectors; determining an energy correction factor (N) for each radiation detector based on an energy spectrum distribution of gamma rays incident on the radiation detector during acquisition of the frame of imaging data; determining a singles live time correction factor for each radiation detector from the singles rate and the energy correction factor; determining a system coincidence live time correction factor from the system singles rate; for each line of response (LOR) connecting pairs of radiation detectors, determining a live time correction factor for the LOR from the determined singles live time correction factors of the pair of radiation detectors connected by the LOR and the determined system coincidence live time correction factor; and reconstructing the frame of imaging data using the determined LOR live time correction factors.