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:
Dec. 07, 2021
Filed:
May. 22, 2017
Tsinghua University, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
Provided are an imaging system and method based on multiple-gamma photon coincidence events. The imaging system includes: a plurality of detector assemblies arranged in a non-parallel manner, a time coincidence module and a computer platform. Each detector assembly includes a collimator and a detector configured to measure time and to detect a multiple-gamma photon coincidence event constituted by a plurality of single-gamma photon events cascade-emitted by a radionuclide within a short time. The method is configured to determine validity of the multiple-gamma photon coincidence event, calculate a plurality of non-parallel projection lines where the decay of the radionuclide takes place, determine a location where the decay of the radionuclide takes place according to the non-parallel projection lines, and obtain a distribution of the radionuclide in the subject according to the location where the decay of the radionuclide takes places.