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目的探讨应用多普勒超声诊断胎儿先天性心脏病的方法和声像学特点.方法对37例先天性心脏病胎儿和61例正常胎儿进行多普勒超声心动图检查.结果1.单纯性间隔缺损多无四腔心异常,大血管十字交叉关系正常;复杂性心血管畸形多具有不同程度的四腔和心胸比例异常.2.多普勒血流显示缺损分流及狭窄区域的高速血流束和三尖瓣返流.3.脐动脉PI值升高,外周动脉PI值降低和峰值流速下降(P<0.01).结论1.胎儿复杂性心血管畸形的识别应采用顺序分段法.2.继发孔型房间隔缺损需根据卵园孔的形态、直径及彩色血流束分流的方向、宽度等项指标来诊断.3.单纯性室间隔缺损中肌部较膜部缺损易于检出.
Objective To explore the method and sonographic features of Doppler ultrasound in the diagnosis of congenital heart disease in fetuses.Methods Doppler echocardiography was performed in 37 congenital heart disease fetuses and 61 normal fetuses.Results 1. Simple interval Defects and more no four-chamber heart abnormalities, large blood vessels cross-normal relationship; complex cardiovascular malformations with varying degrees of abnormalities of the four chambers and cardiothoracic.2.Doppler blood flow display defects and high blood flow in the narrow area And tricuspid regurgitation.3.The umbilical artery PI increased, the peripheral arterial PI decreased and the peak flow decreased (P <0.01) .Conclusions 1. The identification of fetal cardiovascular complications should be sequential.2 .Secondary atrial septal defect should be based on the shape of the hole hole garden, diameter and color flow shunt direction, width and other indicators to diagnose.3. Simplex ventricular septal defect in the Department of membrane defects more easily detected .