Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and apparatus to calibrate timing of a detector using multi-channel events
A method and apparatus are provided for positron emission imaging to calibrate timing of a pixelated gamma detector using multi-channel events. The apparatus can include processing circuitry configured to obtain calibration data representing a time and a position at which gamma rays are detected at a plurality of detector elements, and determine which gamma-ray detections of the calibration data correspond to multi-channel detections in which energy of a respective gamma ray is shared and detected by two or more of the plurality of detector elements. Additionally, the processing circuitry can be configured to determine a timing calibration of the plurality of detector elements by optimizing an objective representing agreement between time data of the multi-channel detections in the calibration data and the timing calibration.
CANON MEDICAL SYSTEMS CORPORATION
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inventional inventional inventional
Xiaoli Kent C. Yi
Li Burr Qiang