Department of Diagnostic Imaging, Molecular Imaging, Interventional Radiology and Radiation Therapy, Policlinico Tor Vergata, Roma, Italy.
Radiol Med. 2011 Aug;116(5):675-89. doi: 10.1007/s11547-011-0627-3. Epub 2011 Feb 1.
This study retrospectively evaluated the prevalence of anatomical coronary artery variants and congenital anomalies in 3,236 patients imaged with 64-slice computed tomography (CT).
Over a period of 4 years, 3,236 patients underwent CT coronary angiography performed with the standard protocol. We assessed coronary artery dominance, presence of the intermediate branch, presence and number of diagonal and marginal branches and coronary anomalies subdivided into anomalies of origin and course, intrinsic anomalies and termination anomalies.
Coronary dominance was right-sided in 88.1% of patients; the intermediate branch was present in 21.3%, the number of diagonal and marginal branches was one to two in >90%, and the number of coronary anomalies was 224 (89 of origin and course, 129 intrinsic anomalies and six termination anomalies).
Sixty-four-slice CT coronary angiography provides accurate three-dimensional evaluation of the coronary artery tree with correct visualisation of any coronary anomalies, a relatively common finding that had a prevalence of 5.7% in our study population.
本研究回顾性评估了 3236 例行 64 层 CT 冠状动脉成像的患者中解剖性冠状动脉变异和先天性异常的发生率。
在 4 年期间，3236 例行 CT 冠状动脉造影检查，采用标准方案。我们评估了冠状动脉优势、中间支的存在、对角支和边缘支的数量和存在情况，以及冠状动脉异常分为起源和走行异常、内在异常和终止异常。
88.1%的患者冠状动脉优势为右侧；中间支的存在率为 21.3%，>90%的患者对角支和边缘支数量为 1-2 支，冠状动脉异常数量为 224 个（起源和走行异常 89 个，内在异常 129 个，终止异常 6 个）。
64 层 CT 冠状动脉成像可对冠状动脉树进行准确的三维评估，并能正确显示任何冠状动脉异常，这是一种相对常见的发现，在我们的研究人群中，其发生率为 5.7%。
