256-MSCT对先天性心脏病婴儿心脏成像的冠状动脉检出情况  

Value of 256-MSCT in Displaying Coronary Artery in Infants with Congenital Heart Disease

作　　者：崔燕海[1] 黄美萍[1] 杨向太[1] 刘辉[1] 梁长虹[1] 

机构地区：[1]广东省人民医院暨广东省医学科学院放射科,广州510080

出　　处：《临床放射学杂志》2012年第8期1149-1152,共4页Journal of Clinical Radiology

基　　金：广东省科技支撑计划基金资助项目(编号:2009B030801257)

摘　　要：目的探讨256-MSCT对复杂性先天性心脏病婴儿(1岁内)心脏成像时的冠状动脉检出情况。方法从789例行256-MSCT检查的<1岁的患儿中随机抽取100例,评价冠状动脉节段的成像情况(按10个节段计算),包括检出的节段数目及血管清晰度。结果总节段检出率为51.7%,左主干(LM)及右冠状动脉(RCA)近段检出率分别为96%和99%,左前降支(LAD)、左回旋支(LCX)、RCA各支血管的节段检出率分别为53.33%、33.67%、53.33%。左、右冠状动脉近段血管清晰度评分(4分/3分/2分/1分)分别为LM(62例/22例/12例/4例)和RCA(56例/20例/17例/7例)。患儿平均接受的有效剂量为(0.898±0.282)mSv。结论 256-MSCT对复杂性先天性心脏病婴儿(1岁内)心脏成像时的冠状动脉检出情况较为满意,尤其对左、右冠状动脉近段检出率很高,且血管清晰度明显提高,能够满足临床诊断需求。Objective To investigate the detection and visibility of coronary artery in infants with congenital heart disease（CHD）using 256 MSCT.Methods One hundred infants（〈1 years old） extracted randomly from 789 infants with CHD underwent 256 MSCT prospective ECG triggered axial scan.The detection and visibility of coronary artery segments were evaluated.Results The detection rate of total segments was51.7%,the detection rate of LM and proximal segment of RCA were 96% and 99%,and the detection rate of LAD,LCX,RCA were 53.33%,33.67% and 53.33% respectively.The visibility score（4/3/2/1） of LM and proximal segment of RCA were 62/22/12/4（LM）and 56/20/17/7（RCA）.The average radiation dose was（23.025±7.227） mGy·cm.Conclusion The detection and visibility of coronary artery in infants with CHD by 256-MSCT are excellent and satisfactory,especially for proximal segments.

关 键 词：先天性心脏病 冠状动脉 体层摄影术 X线计算机 

分 类 号：R725.4[医药卫生—儿科]