Patent ID: 11875432
Assignee: CANON MEDICAL SYSTEMS CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The apparatus of claim 1, wherein the processing circuitry is further configured to:
detect the first event at a first detector crystal included in the detector crystals, the first event including first time information, first energy information, and first location information,
assign the first event, the first time information, the first energy information, and the first location information to the first cell,
determine, as the time window, a first time window having a predetermined length of time based on the first time information,
determine a first zone assignment including the first detector crystal based on the first location information,
detect the second event at a second detector crystal, the second event including second time information, second energy information, and second location information,
determine, based on the second time information and the second location information, whether the second event is detected within the first time window and within the first zone assignment,
group the second event with the first event in the first cell, the second event being a detected scatter event of the first event, when the second event is determined as detected within the first time window and within the first zone assignment, and
group the second event in the second cell, the second event being a detected primary event, when the second event does not satisfy at least one of the first time window and the first zone assignment.