目的探究双源CT(DSCT)对冠状 动脉变异的诊断价值。方法 回顾性分析 2016年9月至2017年9月至我院经冠状动 脉DSCT检查诊断为冠状动脉变异的60例 患者的临床资料，其中33例患者行冠状 动脉造影(CAG)检查，分析冠状动脉异常 患者DSCT影像学特征，比较DSCT与CAG诊 断结果。结果 冠状动脉变异的检出率为 5.83%；60例冠状动脉异常患者DSCT诊 断效果良好，冠状动脉异常主要以右冠 状动脉瘘、右侧冠状动脉起自左侧冠状 窦、左主干起源于右冠状窦居多；6例接 受CAG检查的患者无法准确显示血管起源 及走行，DSCT准确显示所有患者变异冠 脉起源、走行及临近血管关系，两种方 法比较差异有统计学意义(P<0.05)。结 论 DSCT可从多角度、全方位显示冠状动 脉变异的结构，明确其开口、走行及其 与周围血管、心脏之间的解剖学关系， 且安全无创，可作为常规检查手段用于 冠状动脉异常的临床筛查。

Objective To explore the value of dual-source CT (DSCT) in the diagnosis of coronary artery anomaly. Methods The clinical data of 60 patients with coronary artery anomaly diagnosed by coronary artery DSCT in the hospital from September 2016 to September 2017 were retrospectively analyzed. Among them, 33 patients underwent coronary angiography (CAG). DSCT imaging findings of patients with coronary artery anomalies were analyzed. The diagnostic results were compared between DSCT and CAG. Results The detection rate of coronary artery anomaly was 5.83%. The diagnosis with DSCT of 60 patients with coronary artery anomalies was good. The coronary artery anomalies mainly included right coronary artery fistula, the right coronary artery to the left coronary sinus and the left main stem from the right coronary sinus. The origin and distribution of vessels in 6 patients who underwent CAG could not be accurately displayed. DSCT accurately showed the origin of coronary artery anomalies and the relationship between distribution and adjacent blood vessels. There were significant differences between the two methods (P<0.05). Conclusion DSCT can display the structure of coronary artery anomalies from multiple angles and directions, clarify the anatomical relationship between the opening, distribution and surrounding vessels and heart. It is safe and non-invasive. It can be used as a routine examination method for clinical screening of coronary artery anomalies.