维厄桑氏动脉环：一种罕见的冠状动脉变异解剖结构。
Vieussens' arterial ring: a rare coronary variant anatomy.
机构信息
Department of Radiology, Doruk Medical Center, Bursa, Turkey.
Department of Cardiology, MedicalPark Hospital, Bursa, Turkey.
出版信息
Diagn Interv Radiol. 2019 Mar;25(2):109-113. doi: 10.5152/dir.2019.17449.
PURPOSE
We aimed to evaluate Vieussens' arterial ring (VAR) variants by consecutive coronary computed tomography (CT) angiography examinations.
METHODS
We retrospectively evaluated the presence of VAR in a total of 3443 consecutive coronary CT angiography examinations performed between November 2010 and January 2015. CT examinations were performed with a 64-row multidetector computed tomography (MDCT) scanner. All CT angiography images were evaluated for the presence and morphologic features of VAR subtypes. VAR variants were classified into four subgroups.
RESULTS
Eleven VAR variations (3.19‰) were identified. Type 1A was the most common VAR type (n=8), followed by Type 2 (n=2) and Type 3 (n=1). Type 1B was not detected.
CONCLUSION
Although VAR variation is less frequently detected with coronary CT angiography than in previously reported anatomic series, coronary CT angiography is quite effective to reveal VAR subtypes and other relevant cardiocoronary anomalies.
目的
通过连续冠状动脉计算机断层扫描（CT）血管造影检查，评估维厄桑氏动脉环（VAR）的变异。
方法
我们回顾性评估了 2010 年 11 月至 2015 年 1 月间共 3443 例连续冠状动脉 CT 血管造影检查中 VAR 的存在情况。CT 检查使用 64 排多层 CT（MDCT）扫描仪进行。所有 CT 血管造影图像均用于评估 VAR 亚型的存在和形态特征。VAR 变异分为四个亚组。
结果
共发现 11 种 VAR 变异（3.19‰）。最常见的 VAR 类型是 1A 型（n=8），其次是 2 型（n=2）和 3 型（n=1）。未检测到 1B 型。
结论
尽管与先前报道的解剖系列相比，冠状动脉 CT 血管造影检查发现 VAR 变异的频率较低，但冠状动脉 CT 血管造影检查对于揭示 VAR 亚型和其他相关心冠状动脉异常非常有效。
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