MRI技术在胎儿先天性心脏病诊断中的应用

先天性心脏病是造成新生儿死亡的主要原因之一.在产前对胎儿先天性心脏病进行诊断、评估预后是目前围生医学发展的重要内容.胎儿心脏彩超对于孕中期胎儿先天性心脏病的诊断具有相对较高的灵敏度,是胎儿先天性心脏畸形诊断的金标准.胎儿心脏核磁共振技术在过去十年内发展迅速,其视野大、可重复性好等优点在某些情况下可以弥补胎儿心脏超声的不足,但其技术上的问题也局限了其在临床上的应用,目前被认为是胎儿先天性心脏病的二线诊断方法.该文就胎儿心脏核磁共振技术在胎儿先天性心脏病诊断中应用的方法、优势以及局限性进行综述.

Application of MRI in prenatal diagnosis of congenital heart disease

Congenital heart disease(CHD) is one of the main causes of newborn death,which makes the prenatal diagnosis of CHD the hot spot of perinatology.Fetal echocardiography has high sensitivity in diagnosing fetal CHD in mid-gestational age of pregnancy,and is considered world-widely as the gold standard.Rapid advance has been achieved for the past decades in the technology of fetal cardiac magnetic resonance imaging (MRI).The advantages of fetal cardiac MRI including broad vision of interest and good reproducibility could make up for the deficiency of fetal echocardiography.However,some technical problems significantly limit the clinical application of it.Nowadays,fetal cardiac MRI has been utilized as a supplementary method in prenatal diagnosis of fetal CHD.This article reviews the application,advantages and limitations of fetal cardiac MRI in fetal CHD diagnosis.