Patent ID: 9140806
Filing Date: 2015-09-22
Classification: G01T,G04F

Abstract:
1. A method for positron emission tomography (PET) coincidence processing, the method comprising: detecting, with a timing circuit, a first time of a first PET event with a first type of timing measurement; detecting, with the timing circuit, a second time of the first PET event with a second type of timing measurement, the second type different than the first type; determining a difference between the first and second times; comparing the difference with an offset difference; correcting the first time, the second time, or both the first and second times when the difference is greater than the offset difference by at least a threshold amount; and using the corrected first time, second time, or both for the PET coincidence processing, wherein detecting with the first type of timing measurement comprises detecting with constant fraction discrimination and wherein detecting with the second type of timing measurement comprises detecting with second derivative discrimination.