64层螺旋CT冠状动脉造影时心肌桥的检出率及临床价值  

Detection and its clinical value of myocardial bridging with 64-slice spiral CT coronary angiography

作　　者：刘辉[1] 黄美萍[1] 梁长虹[1] 郑君慧[1] 巫梓斌[1] 

机构地区：[1]广东省人民医院影像医学部放射科,广东广州510080

出　　处：《南方医科大学学报》2009年第2期236-238,共3页Journal of Southern Medical University

基　　金：广东省科技计划项目(2006B36030026);广州市科技计划项目(2006Z3_E0241);广东省医学科技项目(A2006030)

摘　　要：目的评估64层螺旋CT(64-MDCT)冠状动脉造影时心肌桥的检出率及临床价值。方法回顾性分析2005年7月～2006年12月共3011例临床疑有冠心病患者的64-MDCT冠状动脉造影检查资料。结果MDCT共检出心肌桥174例,检出率为5.8%。其中168例(96.6%)为单发心肌桥,6例(3.4%)为多发心肌桥。前降支最多见,为167例(96.0%)。心肌桥长5～120mm,平均长度30.5mm。壁冠状动脉深度为1.3～2.8mm,平均厚度2.3mm。单存表现为心肌桥79例(45.4%),心肌桥合并冠状动脉粥样硬化及狭窄95例(54.6%)。结论MDCT是一种诊断心肌桥的可靠、无创性方法,可直接测量心肌桥长度、壁冠状动脉深度,同时能检出合并其他的冠脉和心脏病变,为临床治疗计划的制定提供有益的帮助。Objective To evaluate the detection rate of myocardial bridging by 64-slice spiral CT coronary angiography. Methods The data of 3011 patients with suspected coronary artery disease undergoing 64-slice spiral CT coronary angiography were collected and analyzed retrospectively. Results A total of 174 cases （5.8%） with myocardial bridging were detected by 64-sfice spiral CT coronary angiography, among which 168 （96.6%） had single foci of involvement and 6 （3.4%） had were multiple foci. Involvement of the left anterior descending coronary artery （LAD） was detected in 167 out of the 174 cases （96.0%）. The length of the myocardial bridge varied between 5 and 120 rnm （mean of 30.5 mm）, and the depth of the tunneled artery ranged between 1.3 and 2.8 mm （mean 2.3 mm）. Seventy-nine of the cases （45.4%） had uncomplicated myocardial bridging and 95 （54.6%） had myocardial bridging complicated by coronary atherosclerosis. Conclusion Multi-slice spiral CT coronary angiography is a reliable and noninvasive modality for diagnosis of myocardial bridging to allow direct measurement of the length and depth of the myocardial bridge and detection of concurrent coronary and cardiac lesions.

关 键 词：体层摄影术 X线计算机 心肌桥 冠状动脉造影 冠状动脉疾病 

分 类 号：R816.2[医药卫生—放射医学] R541.4[医药卫生—临床医学]