目的研究超高速螺旋CT(双源CT/MSCT)心脏冠状动脉CTA与造影结果的相对符合率。方法  回顾性分析21例双源CT冠状动脉CTA及造影影像资料，并将二者病变血管狭窄段数相对比。结果  冠状动脉CTA可以较为清晰的显示主干及其较大分支动脉，与造影结果相对比，符合率达91%。结论心脏冠状动脉CTA更易于发现冠状动脉管壁粥样硬化斑块以及由此产生的管腔狭窄。

Objective Research the relative accuracy about the vessels analysis results about ultra-high speed spiral CT(double tubes and 64 layer Computed Tomography) and the angiography of the heart coronary artery. Methods The results of the CTA and angiograph of the heart Coronary artery about 21 cases were retrospectively analyzed. Results The relative accuracy is 91% ; the arterial wall and lumen of the cordis backbone and larger branch artery can display clearly by the CTA of the heart Coronary arterial. Conclusion The results of the CTA and angiograph of the heart Coronary artery have higher correlation and the two methods of the examination can complement each other. Atherosclerotic plaques and mild narrow lumens can be shown more easily by the technology of the heart coronary arterial CTA.