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对２９例妊娠中晚期健康孕妇及２４例轻中度妊高症患者进行超声心动图检查，并分别应用二尖瓣血流多普勒、肺静脉血流多普勒与二尖瓣环组织多普勒方法评价其舒张功能改变。结果表明中晚期正常妊娠者心率及心输出量增加，舒张功能未见明显受损；轻中度妊高症患者左房左室内径、左室重量均较正常妊娠有所增大，舒张功能轻度异常，且三种方法中，组织多普勒方法更为敏感，肺静脉血流多普勒分析作用有限。
Echocardiography was performed on 29 healthy pregnant women of middle and late pregnancy and 24 cases of mild to moderate pregnancy-induced hypertension. The changes of mitral flow Doppler, pulmonary venous flow Doppler and mitral annular tissue Doppler Le method to assess changes in diastolic function. The results showed that in the second and third trimester of pregnancy, heart rate and cardiac output increased, diastolic function was not significantly impaired; mild to moderate pregnancy-induced hyperthyroidism left atrial left ventricular diameter, left ventricular weight was increased compared with normal pregnancy, diastolic function Degree abnormalities, and the three methods, tissue Doppler method is more sensitive, pulmonary venous flow Doppler limited role.