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目的:探讨64层螺旋CT冠状动脉成像对壁冠状动脉心肌桥诊断价值。方法:收集1329例确诊为心肌桥患者的影像资料,分析冠状动脉的心肌桥影像表现及桥前冠状动脉硬化的表现。结果:1329例心肌桥患者壁冠状动脉在心肌内行走一段距离后,又浅露于心肌表面,即表现为“上下台阶”征,前降支合并桥前血管冠状动脉硬化者最多,为448例占33.7%。结论:64层螺旋CT血管造影能准确显示心肌桥形态及桥前前动脉粥样硬化斑块特征。
Objective: To investigate the value of 64-slice spiral CT coronary angiography in the diagnosis of myocardial wall bridge of the coronary artery. Methods: The image data of 1329 patients diagnosed as myocardial bridge were collected, and the myocardial imaging and coronary atherosclerosis in the coronary artery were analyzed. Results: In 1329 cases of myocardial bridge patients, the coronary arteries of coronary arteries were shallowly exposed on the surface of myocardium after they were walked for some distance in the myocardium, showing “up and down steps” sign. The anterior descending coronary artery with coronary artery atherosclerosis was the most Cases accounted for 33.7%. Conclusion: 64-slice spiral CT angiography can accurately display the myocardial bridge morphology and anterior bridge atherosclerotic plaque characteristics.