双源CT冠状动脉成像对心肌桥-壁冠状动脉的诊断价值  

Diagnostic value of dual source CT coronary angiography for myocardial bridge mural coronary artery

作　　者：赵星辉[1] 

机构地区：[1]武汉市第一医院放射科,430022

出　　处：《实用医学影像杂志》2016年第3期246-248,共3页Journal of Practical Medical Imaging

摘　　要：目的探讨双源CT(DSCT)对心肌桥(MB)诊断的临床应用价值。方法 325例疑似冠心病患者行DSCT冠状动脉成像,统计MB的检出率,分析MB影像学特点。结果 325例患者中检出MB 63例,均为单支病变,检出率19.3%,表浅型45例,纵深型18例;其中发生于左前降支53处(84%),左回旋支6处(10%),右冠状动脉4处(6%),心肌桥平均厚度为(2.7±1.2)mm,MB平均长度为(17.6±8.1)mm。MB邻近血管粥样硬化率为43%。结论双源CT冠状动脉成像能清晰显示壁冠状动脉与心肌桥的解剖关系,是一种无创、准确诊断MCA-MB的方法。Objective To assess the evaluation of dual-source CT coronary angiography （CTA） in diagnosing myocardial bridges. Methods Dual-source CT coronary artery imaging was performed in 325 patients suspected of coronary artery disease （CAD） for evaluation of the efficacy of dual-source CT in MCA-MB diagnosis. Results CTA detected 63 cases and a total of 325 myocardial bridges, the rate was 19.3% （63/325）. Forty-five were incomplete MB and 18 were complete MB. Fifty-three located in the middle left anterior descending artery, 6 （10%） MBs were in the CX;4 MBs was in the right coronary artery. The mean length and thickness of myocaidial bridge were （17.6±8.1）mm and （2.7±1.2）mm, respectively. The incidence of atherosclerosis of MCA-MB adjacent vessels was 43%. Conclusion Dual-source CT coronary artery imaging can display exactly anatomy relationship of mural coronary artery and my-ocardial structure with high detection rate, and can be taken as an non-invasion and accurate diagnosis method for myocardial bridge.

关 键 词：心肌桥 体层摄影术 螺旋计算机 心脏成像技术 

分 类 号：R816.2[医药卫生—放射医学] R541[医药卫生—临床医学]