三维和四维超声产前诊断胎儿心脏畸形的临床进展  

Clinical Progress in Three-and Four-Dimensional Fetal Echocardiogram

作　　者：包艳娟[1] 陈小伟[1] 魏敏[1] 

机构地区：[1]襄阳市中心医院影像科,湖北襄阳441021

出　　处：《医学综述》2011年第9期1392-1395,共4页Medical Recapitulate

摘　　要：复杂先天性心脏畸形在产前期诊断困难,二维超声心动图是胎儿心脏畸形产前诊断的基本检查方法。近年来,三维、四维超声在胎儿心脏产前筛查的应用发展迅速。三维超声心脏容积信息联合应用二维超声影像技术,通过表面成像、反转成像、断层显像等一系列后处理技术,开辟了先天性心脏畸形产前检查的全新视角。三维胎儿心脏超声的迅速发展促进了临床诊断的应用。通过电影回放和时间-空间相关成像等动态显示模式,三维、四维胎儿超声心动图可实时动态显示胎儿心脏三维容积信息,更直观显示心房、心室和大动脉的解剖结构和空间关系,并能评估胎儿心脏容积,测算射血分数和每搏量。The diagnosis of complex prenatal congenital heart diseases is difficult.Two-dimensional echocardiogram is the gold standard for prenatal imaging of fetal heart.In recent years,three-and four-dimensional echocardiogram has been developing rapidly for the diagnosis of fetal congenital heart diseases.The acquisition of three-dimensional volume data is based on the application of two-dimensional imaging techniques,including grey scale,color Doppler,power doppler,and B flow modalities.A wide array of post-processing tools,such as surface mode,inversion mode,and tomographic ultrasound imaging,can display the features of fetal heart.Motion display modes include cine-loop and spatiotemporal image correlation.Several developments of three-and four-dimensional imaging techniques facilitate the application in clinical settings.The application of three-and four-dimensional technology appears to be helpful for the understanding of cardiac anatomy,vascular development,and cardiac function.Three-and four-dimensional echocardiogram in the diagnosis of fetal congenital heart diseases opens an entirely new array of diagnostic modalities in clinical practice.

关 键 词：超声心动图 胎儿 三维超声 四维超声 时间-空间相关成像 

分 类 号：R445.1[医药卫生—影像医学与核医学] R714.5[医药卫生—诊断学]