The effect of fetal heart rate on umbilical artery flow velocity waveforms
- 1 July 1987
- journal article
- research article
- Published by Wiley in BJOG: An International Journal of Obstetrics and Gynaecology
- Vol. 94 (7) , 665-669
- https://doi.org/10.1111/j.1471-0528.1987.tb03171.x
Abstract
Summary: Umbilical artery flow velocity waveforms were obtained using continuous wave Doppler ultrasound in 85 normal pregnancies (25 antepartum, 60 intrapartum) to examine the relation between fetal heart rate, end systolic/end diastolic ratio (A/B ratio) and resistance index (RI). Our results demonstrated a significant negative correlation between fetal heart rate, A/B ratio and RI (in the antepartum group r= ‐0·49, and in the labouring group r= ‐0·65). It is therefore important when performing mathematical analysis of umbilical artery flow velocity profiles to make a statistical allowance for fetal heart rate.This publication has 6 references indexed in Scilit:
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