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右冠状动脉起始部-主动脉夹角变异的64层螺旋CT诊断价值 被引量:6

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摘要 目的:探讨64层多螺旋CT(64-multistage CT,MSCT)对右冠状动脉(right coronary artery,RCA)起始部-主动脉夹角变异的诊断价值。方法:收集我院2012年7月至2014年4月72例行64-MSCT冠状动脉CT造影(multistage CT angiography,MSCTA),诊断为右冠状动脉起始部-主动脉夹角变异患者,对原始图像行多平面重组、最大密度投影、曲面重建、容积再现等后处理重建,测量RCA起始部主动脉夹角,分析夹角变小的形态学特征,观察RCA斑块情况。结果:72例患者根据夹角变异的不同,可分为3类,第1类45例,表现为RCA开口处狭窄,紧贴主动脉行走;第2类14例,表现为右冠状动脉起源于右冠状动脉窦,起始部紧贴冠状动脉窦壁,呈急转角式走行;第3类13例,表现为RCA起源于左冠状动脉窦,并呈埋藏式走行于主动脉与肺动脉-右室流出道之间。MSCTA显示72例患者右冠状动脉起始部-主动脉夹角均不同程度变锐且行程异常;其中60例RCA存在斑块。结论:64-MSCTA能清楚显示右冠状动脉起始部-主动脉夹角及右冠状动脉起始部形态学特征;该夹角变小很可能与冠脉斑块的形成有密切关系;也很可能是形成这种心源性猝死高风险的一个因素。观察该夹角的大小对临床诊治有重要的指导意义。
出处 《实用医学杂志》 CAS 北大核心 2015年第10期1667-1669,共3页 The Journal of Practical Medicine
基金 湛江市科技计划项目(编号:2013B01215)
作者简介 通信作者:夏俊 E—mail:850943861@qq.com
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