64层螺旋CT冠状动脉成像在心肌桥和壁冠状动脉诊断中的价值

The Diagnostic Value of 64 CT Angiography in Myocardial Bridge and Mural Coronary Artery

目的探讨64层螺旋CT冠状动脉成像对心肌桥(MB)的诊断及其临床价值。资料与方法1422例患者均行64层CT扫描,所有数据传至工作站进行重组和后处理,观察有无MB,测量MB的长度、厚度、壁冠状动脉狭窄程度等。所有MB病例均行冠状动脉造影(CAG)检查并与CT结果对比。结果共发现104例119段MB,平均长度及厚度分别为(5.0±2.7)mm、(2.0±1.6)mm,壁冠状动脉狭窄程度为(31±17)%。104例MB患者CAG发现42例44段MB,其长度、厚度与CT结果存在明显差异。结论64层CT对MB和壁冠状动脉清晰显示,有特殊的临床价值。

Objective To investigate the diagnostic value of 64 CT angiography in determining Myocardial Bridge（MB） and Mural Coronary Artery （MCA）. Materials and Methods 1422 patients were performed 64 CT angiography. The CTA data were taken by post-process and reconstructed in the work-station. All cases with MB received CAG studies. The length, thickness of MB and the stenosis of MCA were recorded. The results of CT and DSA were compared and analyzed. Results 104 cases with 119 MB segments were found, with mean length （5.0±2.7） mm, mean thickness （2.0±1.6） mm. The mean stenosis rate of MC was （31 ± 17） %. 42 cases with 44 MB segments were found by DSA. The length and thickness of MB had significant deference from CT results. Conclusion CTA can clearly show MB and MCA, and it has important clinic values.