Scintillation event positioning method and device, PET (positron emission tomography) system and storage medium

• Main Authors: LIU LONGPENG, BI DONGDONG, WANG HONGFENG, LU ZHENRUI, AN SHAOHUI
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEASUREMENT OF NUCLEAR OR X-RADIATION; MEASURING; MEDICAL OR VETERINARY SCIENCE; PHYSICS; SURGERY; TESTING

The invention relates to a flicker event positioning method and device, a PET system, a storage medium and a computer program product. The method comprises the following steps: acquiring corresponding hit position information when gamma photons hit a target crystal array; the hit position information comprises target action depth information and target plane position information; determining a target crystal lookup table corresponding to a crystal layer represented by the target action depth information from a candidate crystal lookup table set corresponding to the target crystal array; each crystal layer of the target crystal array is obtained by dividing the target crystal array into at least two layers along the crystal depth direction; querying a target crystal identifier corresponding to the target plane position information in a target crystal lookup table; a target crystal corresponding to the target crystal identifier is a crystal generating a flicker event in the target crystal array; and positioning