多排CT冠状动脉成像评价单纯心肌桥-壁冠状动脉与左心功能的相关性  

Evaluation of Multislice CT Coronary Artery Angiography in the Correlation Between Simple Myocardial Bridge Mural Coronary Artery and Left Ventricular Function

作　　者：崔志新[1] 王胜林[1] 陆海容 范志奎[3] 王淑贤[1] 

机构地区：[1]承德医学院附属医院影像科,河北承德067000 [2]解放军266医院放射科 [3]承德钢铁集团有限公司职工医院

出　　处：《临床放射学杂志》2012年第5期654-657,共4页Journal of Clinical Radiology

摘　　要：目的利用多排螺旋CT冠状动脉成像准确评估左心功能及左前降支心肌桥-壁冠状动脉(myocardialbridge-mural coronary artery,MB-MCA)情况,并探讨二者的相关性。资料与方法回顾性分析78例单纯性左前降支MB-MCA(无冠状动脉粥样硬化)患者资料,观察并测量左前降支MB深度、MCA长度及MCA横截面积,计算MB指数、MCA缩窄率并与左心功能指标进行对比分析。结果多排CT能对左前降支各项参数进行准确测量,经统计学分析,左前降支MB厚度、MB指数(MCA长度与MB厚度的乘积)与左心室射血分数(EF)呈负相关;MCA缩窄率与EF呈正相关。结论多排CT能准确评价MB-MCA,且左前降支MCA缩窄率、MB厚度及MB指数与左心功能有一定相关性。Objective To evaluate the correlation between left ventricular function and myocardial bridge mural coronary artery（MB MCA） of left anterior descending coronary artery by multislice CT coronary artery angiography.Materials and Methods78 patients with simple myocardial bridge mural coronary artery without coronary atherosclerosis were analyzed retrospectively,the length of MCA and the thickness of MB,the cross section area of MCA were measured and myocardial bridging index and mural coronary arteriarctia ratio were calculated and undertaken contrastive analysis with left ventricular ejection fraction.ResultsAll parameters were accurately measured with multislice CT,the left ventricular ejection fraction was negative correlated with left descending artery myocardial bridge＇s thickness and myocardial bridging index,and positive correlated with mural coronary arteriarctia ratio.ConclusionMyocardial bridge mural coronary artery（MB MCA） could be accurately assessed with multislice CT,and there is correlation between left anterior descending coronary artery arteriarctia ratio,thickness of MB,myocardial bridging index and left ventricular function.

关 键 词：体层摄影术 X线计算机 心肌桥-壁冠状动脉 心肌桥指数 动脉缩窄率 射血分数 

分 类 号：R816.2[医药卫生—放射医学]