Study of the fetal hemodynamics predicting intrauterine hypoxia with Color Doppler flow imaging
XU Qingsong
LIN Kaiyun
Abstract：Objective To evaluate the clinical value of hemodynamic changes in fetal predicting intrauterine hypoxia with middle cerebral artery(MCA),renal artery(RA)and umbilical artery(UA)detected by Color Doppler flow imaging(CDFI).Methods CDFI was used to examine the blood flow velocity waveforms of fetal MCA,RA and UA in 49 cases of normal prennancy and 52 cases with fetal intrauterine anoxia.The peak systolic/diastolic ratio(S/D),pulsation index(PI)and resistance index(RI)values of MCA,RA and UA were calculated.Results The peak systolic/diastolic ratio(S/D),pulsation index and resistance index values of MCA,RA and UA in nornlal group were gradually decreased in correspondent to gestational period(P＜0.01).The values of hemodynamic changes of MCA,RA and UA in Intrauterine hypoxia group pregnancies were higher in the normal ones.Conclusion When the S/Dvalue of UA was more than 3,PI more than 1.7,and RI more than 0.8,The blood flow of RA with S/D more than 4,PI more than 1.8,RI more than 0.8,fetal intrauterine hypoxia was suggested.The blood flow with s/D less than 4,PI less than 1.6.RI less than0.6 indicated intrauterine fetal hypoxia.Intrauterine hypoxia is a dominant cause of fetal distress and perinatal death.This study demonstrates that the monitoring of fetal hemodynamic changes in MCA,RA and UA plays an important role in prediction of the fetus development and abnormality.
Keywords：Fetal hypoxiaColor Doppler flow imagingHemodynamic pheomena
Publication Date：2009-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：4( 71-74 )