US 12,213,826 B2
Systems and methods for determining true coincidence events
Jun Li, Shanghai (CN); Wei Zheng, Shanghai (CN); Longzi Yang, Shanghai (CN); and Shitao Liu, Shanghai (CN)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Oct. 14, 2021, as Appl. No. 17/450,837.
Application 17/450,837 is a continuation of application No. PCT/CN2020/084861, filed on Apr. 15, 2020.
Claims priority of application No. 201910299086.5 (CN), filed on Apr. 15, 2019; application No. 201910511146.5 (CN), filed on Jun. 13, 2019; and application No. 201910833121.7 (CN), filed on Sep. 4, 2019.
Prior Publication US 2022/0031272 A1, Feb. 3, 2022
Int. Cl. A61B 6/00 (2024.01); A61B 6/03 (2006.01); A61B 6/42 (2024.01); G04F 10/00 (2006.01); G06T 11/00 (2006.01)
CPC A61B 6/5205 (2013.01) [A61B 6/037 (2013.01); A61B 6/4266 (2013.01); G06T 11/005 (2013.01); G04F 10/005 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device for determining coincidence events in a PET system, comprising:
one or more detector rings; and
one or more coincidence modules, each coincidence module corresponding to one of the one or more detector rings, and the one or more coincidence modules are connected in one-to-one correspondence with the one or more detector rings, respectively, the one or more coincidence modules being configured to determine coincidence events based on single events detected by the one or more detector rings, wherein:
the coincidence events determined by a coincidence module include first coincidence events and second coincidence events, wherein:
a first coincidence event includes two first single events that are corresponding to each other, and
a second coincidence event includes a first single event and a second single event, the first single event being a single event from a detector ring corresponding to the coincidence module and the second single event being a single event from a detector ring not corresponding to the coincidence module.