目的　探讨双源CT（DSCT）对先天性冠状动脉畸形（CCA）的诊断价值及临床意义。　方法　对我院DSCT冠状动脉成像资料进行回顾性统计，对其中冠状动脉畸形病例进行统计分析，探讨临床应用价值。　结果　1824例冠状动脉成像中检出CCA共43例（2.36%），其中冠状动脉起源异常24例（1.32%），冠状动脉走行异常18例，均为心肌桥，占CCA总数的41.9%，占总例数的0.99%。冠状动脉起源异常中右冠状动脉起源于左冠状窦9例，左冠状动脉起源于右冠状窦仅1例。　结论　DSCT能够准确地显示冠状动脉畸形，特别是对心肌桥的敏感性高于其他检查方法，对临床诊断和预后评估有重要的应用价值，特别适用于门诊冠脉疾病的“一站式”检查。

Objective　To evaluate the diagnosis value of dual source computed tomography on congenital coronary anomalies (CCA) in adults.　Methods　Retrospective analysis was performed on 1824 cases underwent the dual source CT coronary angiography, and the data of patients suffered from CCA were statistically analyzed, for evaluating clinical value of dual source computed tomography.　Results　A total of 43 cases of CCA were found from 1824 cases who undergoing DSCT, giving the detect rate of 2.3% (43/1824), including anomalies of origin of 24 cases (1.3%, 24/1824), myocardial bridge（MB）of 18 cases (0.99%, 18/1824), and abnormal termination of 1 cases.　Conclusions　DSCT can be used to display of anomalous coronary arteries accurately, especially for the diagnosis and prognosis of CCA for outpatients.