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复杂先天性心脏畸形在产前期诊断困难,二维超声心动图是产前诊断的基本检查方法.近年来,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,更全面的评价胎儿心脏的功能,为出生后的进一步处理提供理论依据.再者,新技术的利用,更能发现一些心脏畸形,提高优生优育.“,”Complex congenital heart malformations are difficulties to diagnostic in prenatal period.Two-dimensional echocardiography is the basic prenatal diagnosis inspection methods.In recent years,three-dimensional ultrasound cardiac volume information combined with two-dimensional ultrasound imaging technology,through the surface imaging,inversion imaging,tomography after a series of processing technology,has opened up the innate heart malformations in prenatal examination from a new perspective.Three-dimensional ultrasound of the fetal heart promoted the development of the clinical diagnostic applications.By movie playback and spatio-temporal image correlation and dynamic display model,3D,4D ultrasound fetal heartbeat graph can be real-time dynamic display of fetal heart volume information,displaying the atrial,ventricular and coronary artery anatomical structure and spatial relationships,and assessment of fetal heart volume,calculation of ejection fraction and stroke volume,more comprehensive evaluation of fetal cardiac function after birth,to provide a theoretical basis for further processing.Furthermore,the use of new technology,can find some cardiac malformations,improve the eugenics.