<p>A method of locating an event with a gamma camera (12) of an emission computed tomography (ECT) scanner (10) is provided. The gamma camera (12) includes a matrix of sensors (22) situated to view the event. The sensors (22) have respective outputs that are responsive to the event. The method includes: identifying a first sensor in the matrix that has in response to the event a highest output relative to the other sensors in the matrix (step (B2)); identifying a number of second sensors in the matrix that are closest neighbors to the first sensor (step (B3)); combining into a total output a number of outputs from the identified sensors, the number of outputs being at least one (1) and less than the number of all the identified sensors (step (B4)); and, determining a threshold value which is a percentage of the total output (step (B4)).</p>
申请公布号
WO2004049001(A1)
申请公布日期
2004.06.10
申请号
WO2003IB05123
申请日期
2003.11.12
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;LAURENCE, THOMAS, L.;COOKE, STEVEN, E.