目的 评价双源CT冠状动脉成像 技术对冠状动脉瘘的观察效果，研究其 对冠状动脉瘘的诊断价值。方法 回顾性 分析15例冠状动脉瘘患者双源CT冠状动 脉成像检查结果，原始数据应用MIP、 MPR、CPR、VR后处理技术观察冠状动脉 的形态。结果 15例冠状动脉瘘中，4例 为右冠状动脉-右心室瘘；3例为右冠状 动脉-肺动脉瘘；3例为左冠状动脉-右心 室瘘；5例为左冠状动脉-肺动脉瘘。2例 合并房间隔缺损，1例合并室间隔缺损及 动脉导管未闭，1例合并法乐氏四联征， 1例合并肺动脉瓣狭窄。结论 DSCT冠状 动脉成像可以准确显示冠状动脉瘘的引 流位置及瘘道大小，可观察心内结构及 合并畸形，可作为临床诊断冠状动脉瘘 的一种安全无创的影像学检查方法。

Objective To investigate coronary artery fistulas by dual-source CT angiography (DSCTA). Methods A total of 15 cases of coronary artery fistulas patients underwent DSCTA, and MIP, MPR, CPR, and VR were performed and showed the configuration of anomaly coronary artery. Results A total of 15 cases of coronary artery fistula included right coronary artery- right ventricle fistula(n=4), right coronary arterypulmonary artery fistula(n=3), left coronary artery- right ventricle fistula(n=3), left coronary artery-pulmonary artery fistula(n=5), 2 cases with atrial septal defect, 1 cases with ventricular septal defect and patent ductus arteriosus, 1 cases with tetralogy of Fallot syndrome, 1 case with pulmonary valve stenosis. Conclusion DSCT coronary angiography can show the location and size of the coronary artery fistula and observe the cardiac inner structure and deformity which is very important for operation therapy, DSCT can be the a safe and noninvasive imaging examination method of coronary artery fistula.