电子束CT结合前置心电图触发提高了时间分辨力,使心脏成像取得进展。多年来作为主要无创性技术应用心脏钙化积分及无创性冠状动脉造影。多层螺旋CT(MSCT)在大容积覆盖,高空间分辨力以及后置心电图门控技术等方面具有优越性。两种技术在冠状动脉钙化积分、冠状动脉造影以及心室和瓣膜功能分析等方面的比较,表明MSCT图像质量更具优越性,已成为无创性心脏成像的首选检验方法,尤其对冠状动脉的评价。 Electron beam CT with pre-electrocardiographic triggering improves time resolution and advances cardiac imaging. Over the years as a major noninvasive technique of heart calcification score and non-invasive coronary angiography. Multi-slice spiral CT (MSCT) is superior in large volume coverage, high spatial resolution and posterior ECG gating. Comparison of the two techniques in coronary artery calcification score, coronary angiography and ventricular and valve function analysis shows that MSCT image quality is more superior and has become the preferred test method for noninvasive cardiac imaging, especially for the evaluation of coronary arteries.