Both Um and Ut S/ D ratio decreased with the advancement of gestational age in normal control group (n=20) and DM cases without large for gestational age (AGA) infant (n=15).

• 结果发现,出生体重符合孕龄(AGA)糖尿病孕妇(n=15),脐动脉,子宫动脉S/D比值与正常孕妇组比较,无明显差异。