In multilayer spiral CT heart and coronary artery imaging, image data are acquired by ECG gating technology when heart beats slowest so as to restrain pulsation pseudo-image.

• 在多层螺旋CT心脏及冠状动脉成像中,利用心电门控制技术在心脏运动最慢的时期采集图像数据,实线抑制心脏运动伪影的目的。