256层螺旋CT冠状动脉造影在心肌桥检测中的应用  

Demonstration of the Myocardial Bridging by 256-MDCT

作　　者：尹璇[1] 祝瑞江[1] 刘含秋[1] 李克[1] 杨艳梅[1] 张俊海[1] 

机构地区：[1]复旦大学附属华山医院放射科

出　　处：《中国医学计算机成像杂志》2011年第1期37-40,共4页Chinese Computed Medical Imaging

摘　　要：目的:利用256层螺旋CT冠状动脉成像探讨心肌桥的出现率、好发部位。方法:连续收集临床诊断为冠心病且行256层螺旋CT冠状动脉成像的病例251例,回顾性地在线分析冠脉CT血管造影上心肌桥的出现率及其部位。结果:52例患者检出了心肌桥(52/251,20.7%),其中男性20例,女性22例,年龄60.27±11.36岁,共66段心肌桥。其中38例为单一壁冠状动脉,14例为两段受累,分别发生在前降支中段和钝缘支、前降支中段和右侧冠状动脉中段。心肌桥最常见于左前降支中段(48段,72.7%)。结论:心肌桥常见,最常出现于左前降支,特别是左前降支中段,256层螺旋CT有效、无创且清晰地显示了心肌桥。Purpose：Myocardial bridging is a congenital anomaly which is considered as a benign variation.However,this condition is related to many severe complications.The aim of this study is to evaluate the prevalence and the location of myocardial bridging（MB） by using 256-row MDCT coronary CT angiography（CTA）.Methods：256-slice CT coronary imaging was undergone in 251 patients who had clinical suspected coronary heart disease.Their CTA imaging data were analyzed.The prevalence and the location of MB were evaluated.Results：Of the 251 patients, 52（20.7%,mean age 60.92±11.70） patients with a total of 66 coronary segments were found to have MB.Thirty-eight cases had one MB,14 cases had two involved,which were located in the mid segment of the left anterior descending artery（LAD） and obtuse marginal branch,the mid segment of LAD and middle of right coronary artery（RCA）,respectively.MB was frequently located in the mid segment of LAD（72.7%）.Conclusions： MDCT is an effective and noninvasive tool to evaluate MB.The prevalence of MB in our patient group was 20.7%.MB was frequently located in LAD,especially in the mid segment of LAD.

关 键 词：心肌桥 壁冠状动脉 多排螺旋CT 冠状动脉成像 

分 类 号：R816.2[医药卫生—放射医学]