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双源CT血管造影在先心病右室双出口诊断的应用价值 被引量:5

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摘要 目的探讨心电门控双源CT血管造影(dual-source computed tomography angiography,DSCTA)在右心室双出口(double outlet right ventricle,DORV)形态解剖学方面的应用,并与超声心动图比较,讨论DSCTA诊断DORV的优势。方法回顾性分析2010年7月至2013年7月我院心脏外科经手术证实的57例DORV患者的术前DSCTA表现,男性32例,女性25例,平均年龄9.2岁。采用节段分析法观察室间隔缺损的大小及位置、大动脉的相对位置关系、房室连接关系和相应冠状动脉类型,以及其他伴发心血管畸形,将DSCTA及超声心动图所见与手术结果对照分析。结果 57例患者分为室间隔缺损型11例,法洛四联症型29例,大动脉转位型17例。共发现室间隔缺损62处,平均最大径约1.8 cm。44例患者伴有不同程度的肺动脉主干、肺动脉瓣及瓣下狭窄。肺动脉相对于主动脉关系:右前者23例、右后者11例、右侧者4例、左前者4例、左后者4例、左侧者2例、前方者7例、后方者2例。冠状动脉起源及走行异常17例(29.8%)。伴有其他心血管畸形40例(70.2%),部分患者伴有多个先天性心脏畸形,其中双上腔静脉7例(12.3%),房间隔缺损及卵圆孔未闭22例(38.6%),动脉导管未闭14例(24.6%),主动脉狭窄2例(3.5%),完全性心内膜垫缺损7例(12.3%),升主动脉瘤1例(1.8%)。诊断DORV方面,DSCTA准确率与超声心动图无明显差异(P>0.05)。DSCTA与超声心动图对冠状动脉解剖诊断准确率差异具有统计学意义(P<0.01)。结论 DSCTA可以准确评价DORV的形态解剖学改变,与超声心动图对比,对冠状动脉显示尤佳,能为术前提供详细全面的解剖诊断信息。
出处 《第三军医大学学报》 CAS CSCD 北大核心 2014年第14期1519-1523,共5页 Journal of Third Military Medical University
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