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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心和心胸比例异常。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。脐动脉ＰＩ值升高，外周动脉ＰＩ值降低和峰值流速下降（Ｐ＜００１）。结论：胎儿复杂性心血管畸形的识别应采用顺序分段法；继发孔型房间隔缺损需根据卵圆孔的形态、直径及彩色血流束分流的方向、宽度等项指标来诊断；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 fetal congenital heart disease. Methods 37 cases of congenital heart disease and 61 cases of normal fetus were examined by Doppler echocardiography. Results There were no more four-compartment abnormalities in the simple septal defect, and the macroscopically cross-vessel relationship was normal. The complicated cardiovascular malformations had more abnormalities of the four-compartment heart and chest-thorax in varying degrees. Doppler flow showed high-speed blood flow and tricuspid regurgitation in the defect-diverting and stenotic regions. Umbilical artery PI increased, peripheral artery PI decreased and the peak velocity decreased (P <0 01). Conclusions: Sequential segmental method should be adopted for the identification of fetal cardiovascular complications. Secondary atrial septal defect should be diagnosed according to the shape and diameter of foramen ovale and the direction and width of color flow shunt. Ventricular septal defect in the Ministry of muscle defect than the membrane easily detected