Patent ID: 7825370
Filing Date: 2010-11-02
Classification: G01T

Abstract:
1. A method for calibrating a computed tomography (CT) system, the method comprising: selectively activating each of a plurality of elements of a detector in the CT system; determining for each of the selectively activated elements, a crosstalk effect on elements adjacent to the activated elements, to calibrate the CT system, wherein the selectively activated elements are located in a plurality of different directions that include a first direction, a second direction that is opposite to the first direction, and a third direction that is different from the first and second directions, wherein the second direction is adjacent to the selectively activated elements; and determining a crosstalk corrected x-ray signal corresponding to one of the adjacent elements as a function of a ratio of a difference and a corrected vector intensity, wherein the difference comprises a difference between the corrected vector intensity of one selectively activated element and another corrected vector intensity corresponding to another one of the selectively activated elements.