冠状动脉造影是检查诊断冠心病的“金指标”。随着多层螺旋CT的出现,冠心病的无创性检查价值大大提高,其特异性高,有助于排除诊断[1],从而使冠状动脉造影人群比例发生明显变化。本研究探讨多层螺旋CT冠状动脉造影人群比例,旨在提高冠心病无创性检查价值,以减少患者有创检查的痛 Coronary angiography is the “gold index” for examining the diagnosis of coronary heart disease. With the advent of multi-slice spiral CT, the value of noninvasive examination of coronary heart disease is greatly increased, and its specificity is high, which is helpful to rule out the diagnosis [1], thus significantly changing the proportion of coronary angiography patients. This study was to explore the proportion of multislice spiral CT coronary angiography in order to improve the value of noninvasive coronary heart disease in patients with invasive examination to reduce the pain