| 陈艳,许娟,邓文俊,陈浩,黄涛涛.冠状动脉异常起源合并升主动脉壁内走行的CT诊断[J].中国医学影像技术,2016,32(4):513~516 |
| 冠状动脉异常起源合并升主动脉壁内走行的CT诊断 |
| CT angiography of intramural segments in anomalous origin coronary arteries |
| 投稿时间：2015-03-12 修订日期：2015-06-15 |
| DOI：10.13929/j.1003-3289.2016.04.009 |
| 中文关键词: 冠状血管 体层摄影术,X线计算机 异常起源 |
| 英文关键词:Coronary vessels Tomography, X-ray computed Anomalous origin |
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| 中文摘要: |
| 目的 探讨冠状动脉异常起源合并升主动脉壁内走行的CTA特征及其诊断价值.方法 回顾性分析14例冠状动脉异常起源并经外科手术证实为冠状动脉在升主动脉壁内走行(壁内走行组)的患者和50例冠状动脉起源异常无壁内走行(无壁内走行组)的患者资料,观察两组术前CTA图像特点,并与手术结果相对照.结果 壁内走行组CTA正确诊断13例(13/14,92.86%).CTA后处理的MIP血管轴位像显示冠状动脉横截面呈椭圆形,血管高度/宽度均>1.6,平均2.06±0.29;无壁内走行组异常走行血管的高度/宽度均<1.4,平均1.26±0.14,两组高度/宽度差异有统计学意义(t=8.547,P=0.005).壁内走行组右冠状动脉发生率为64.29%(9/14);MIP血管轴位像见冠状动脉与升主动脉共用血管壁5例(5/14,35.71%).结论 血管横断面呈椭圆形是冠状动脉在升主动脉壁内走行的特征.CT可在术前识别壁内走行冠状动脉. |
| 英文摘要: |
| Objective To evaluate CTA characteristics and diagnostic value of anomalous coronary arteries with an intramural segment (intramural coronary artery). Methods There were 14 patients diagnosed by surgery as having an intramural coronary artery and 50 patients diagnosed as without having an intramural coronary artery. CTA images were retrospectively analyzed for the presence of high-risk features by a radiologist blinded to the surgical findings. Results Pre-operative CTA diagnosed 13 patients of intramural coronary artery (13/14, 92.86%). CTA MIP showed an elliptical shaped cross-section throughout the intramural segment of the anomalous vessel. The average vessel height/width ratio for anomalous coronary vessels with an intramural segment was more than 1.6 (mean[2.06±0.29]), and the ratio was less than 1.4 for anomalous vessels without an intramural segment (mean[1.26±0.14]). There were statistical differences was found between the two groups (t=8.547, P=0.005). The intramural segments was the right coronary artery in 9 patients (9/14, 64.29%). MPI anomalous vessel showed coronary artery wall shared with the ascending aorta in 5 cases (5/14, 35.71%). There were statistical differences between two roup (t=8.547, P=0.005). Conclusion CTA can identify intramural segment of anomalous interarterial coronary artery by its elliptical shape. |
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