Title:
SCATTERING EVENT SCREENING METHOD AND DEVICE, AND PET SYSTEM, ELECTRONIC APPARATUS AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/087433
Kind Code:
A1
Abstract:
A scattering event screening method and device, and a PET system, an electronic apparatus and a storage medium. The scattering event screening method comprises: acquiring an absorption depth curve of a detector in a PET system for photons, and dividing, according to the absorption depth curve, the detector into a first area and a second area in a depth direction of the detector; providing a first energy window in the first area, so as to filter scattering events that occur in a scanning target; and providing a plurality of second energy windows in the second area, so as to retain the scattering events that occur in the detector, wherein the plurality of second energy windows are sequentially widened in the depth direction.
Inventors:
LIU LONGPENG (CN)
Application Number:
PCT/CN2021/136588
Publication Date:
May 25, 2023
Filing Date:
December 08, 2021
Export Citation:
Assignee:
WUHAN UNITED IMAGING LIFE SCIENCE INSTR CO LTD (CN)
International Classes:
A61B6/03
Foreign References:
| CN109091158A | 2018-12-28 | |||
| CN109875592A | 2019-06-14 | |||
| CN111505699A | 2020-08-07 | |||
| US20170212251A1 | 2017-07-27 | |||
| US20150289825A1 | 2015-10-15 | |||
| US20200151918A1 | 2020-05-14 |
Other References:
LEE MIN SUN, KANG SEUNG KWAN, LEE JAE SUNG: "Novel inter-crystal scattering event identification method for PET detectors", PHYSICS IN MEDICINE & BIOLOGY, vol. 63, no. 11, 7 June 2018 (2018-06-07), pages 115015, XP093066507, DOI: 10.1088/1361-6560/aabe3a
ZHANG CHUNHUI, SANG ZIRU, WANG XIAOHUI, ZHANG XIANMING, YANG YONGFENG: "The effects of inter-crystal scattering events on the performance of PET detectors", PHYSICS IN MEDICINE & BIOLOGY, vol. 64, no. 20, 10 October 2019 (2019-10-10), pages 205004, XP093066508, DOI: 10.1088/1361-6560/ab44f4
ZHANG CHUNHUI, SANG ZIRU, WANG XIAOHUI, ZHANG XIANMING, YANG YONGFENG: "The effects of inter-crystal scattering events on the performance of PET detectors", PHYSICS IN MEDICINE & BIOLOGY, vol. 64, no. 20, 10 October 2019 (2019-10-10), pages 205004, XP093066508, DOI: 10.1088/1361-6560/ab44f4
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (HANGZHOU) (CN)
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