ULTRASOUND GATING OF CARDIAC CT SCANS

摘要

An ultrasonic imaging system acquires echo signals from an object being imaged such as a moving coronary artery and the cross-correlation between echo signals is employed as an objective measure of relative object location. The method is used in a prescan procedure to determine an optimal gating window to acquire iamge data during a cardiac gated scan, and it is used during the scan as real time gating signal.