UMBILICAL VELOCIMETRY IN NORMAL-PREGNANCY

被引：2
|
作者：
DOR, N
SHTERN, M
机构：
[1] Maimonides Hospital Medical Center, Department of Obstetrics and Gynecology, Brooklyn, NY 11219
来源：
INTERNATIONAL JOURNAL OF GYNECOLOGY & OBSTETRICS | 1990年 / 31卷 / 02期
关键词：
Doppler; Pregnancy; Umbilical circulation; Velocimetry;
D O I：
10.1016/0020-7292(90)90708-S
中图分类号：
R71 [妇产科学];
学科分类号：
100211 ;
摘要：
Five hundred ninety-six normal pregnancies were evaluated with continuous Doppler to determine the changes in velocimetry between 17 and 42 weeks gestation. The waveform was identified by its characteristic sharp systolic rise and slow diastolic decay; plotting the S/D ratio as a function of the gestational age reveals a progressive decline in the S/D ratio as gestation progresses. A significant drop occurred around 30 weeks when the mean S/D ratio dropped from 3 (29 weeks) to 2.6 (31 weeks) reflecting decreased placental resistance. © 1990.
引用
收藏
页码：127 / 130
页数：4
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