16排CT在评价冠状动脉先天性异常中的应用价值

The Value of Sixteen-Detector Row Computed Tomographic Angiography For the Evaluation of Anomalous Coronary Arteries

目的:探讨16排计算机断层扫描技术(MSCT)在评价冠状动脉先天性异常中的应用价值。方法:共入选216例进行16排CT造影(CTA)检查的患者,CTA检查通过回顾性心电图门控方法进行。如发现冠状动脉先天性异常,再进行导管介入的冠状动脉造影(CAG)检查证实冠状动脉先天性异常情况。CTA和CAG结果均由两位有经验的医师独立进行评估。结果:在216例CTA检查中,有5例显示冠状动脉先天性异常。在这5例冠状动脉先天性异常中,4例是右冠状动脉(RCA)起源异常,1例是RCA分支圆锥支行走异常。其中,3例RCA开口位于左冠窦,1例RCA开口起源于左前降支(LAD)近端,1例RCA分支圆锥支行走于主动脉和肺动脉之间到达心脏前壁。上述结果经CAG证实。结论:16排CT造影方法能准确地评价冠状动脉先天性异常。

Objective： To evaluate the value of sixteen-detector row computed tomographic angiography（CTA） for the evaluation of anomalous coronary arteries. Method.. This study included consecutive 216 patients who were performed CTA. All CTA procedures were performed with retrospective electrocardiogram gating method. If the anomalous coronary arteries were detected, the results would be confirmed by conventional invasive coronary angiography （CAG）. The results of CTA and CAG were evaluated by two experienced doctors. Result： Of all 216 patients, CTA identified 5 patients with an anomalous coronary artery. Of these 5 cases, the anomalous coronary arteries were RCA or side branch of RCA-Conus. RCA originated from the left sinus of Valsalva in 3 cases; RCA o- riginated from the proximal segment of LAD in 1 case; Conus coursed between the aortic root and pulmonary artery to the anterior wall of the heart in 1 case. The above results were confirmed by CAG. Conclusion： Sixteen-detector row CT angiography（CTA）technology can accurately evaluate anomalous coronary arteries.