amniotic fluid;
ultrasonography;
pregnancy;
first trimester;
D O I:
10.7863/jum.1996.15.11.771
中图分类号:
O42 [声学];
学科分类号:
070206 ;
082403 ;
摘要:
The sonographic estimate of amniotic fluid volume from 7 to 13 weeks of gestation in 95 pregnancies was calculated. Amniotic fluid volume increased from 1.5 mi at 7 weeks to 25 mi at 10 weeks and 100 mi at 13 weeks. The nomograms constructed may be used in the objective evaluation of the fetal condition in the first trimester.