Department of Radiodiagnosis and Imaging, Kasturba Medical College, Manipal University, Udupi District, Manipal 576104, Karnataka, India.
Singapore Med J. 2012 Jun;53(6):e125-7.
Coronary artery anomalies are rare, and their incidence varies from 0.6% to 1.3%. Conventional angiography is a commonly used modality for the assessment of coronary artery anomalies, but it may not identify and define the anatomy of anomalous arteries due to the complexity of the course and three-dimensional orientation of the arteries. We present a rare case of duplicated right coronary artery (RCA) with separate ostium on 64-row multidetector computed tomography (MDCT). MDCT is better than conventional angiography in cases where selective catheterisation of either a single artery or ostium during catheter angiography has resulted in missing an important vessel. So far, 13 cases of duplicated RCA have been reported in the literature, and the features on MDCT were described only in three cases.
冠状动脉异常较为罕见，其发病率为 0.6%至 1.3%。传统的血管造影术是评估冠状动脉异常的常用方法，但由于动脉的走行和三维方向复杂，可能无法识别和定义异常动脉的解剖结构。我们报告了一例罕见的右冠状动脉（RCA）双支畸形，64 排多层螺旋 CT（MDCT）显示其开口分开。在选择性导管插入术仅对单个动脉或开口进行导管造影术而导致重要血管漏诊的情况下，MDCT 优于传统血管造影术。迄今为止，文献中已经报道了 13 例 RCA 双支畸形，仅在 3 例中描述了 MDCT 的特征。
