Abstract: [
Abstract ] Objective Todiscusstheapplicationvalueoffetalumbilicalarteryandmiddle
cerebralarteryresistanceindexinpredictingfetalhypoxia.Methods Atotalof120pregnant
womeninhospitalwasselectedanddividedintocontrolgroupandobservationgroup , thecontrol
groupwith62casesofnormalpregnancy , theobservationgroupwith58casesoffetalhypoxia
pregnancy , theuseofcolorDopplerultrasounddetectionoffetalumbilicalartery , middlecerebral
artery , pulsatilityindex (
PI ), resistanceindex ( RI ) andpeaksystolicandenddiastolicvelocity
ratio ( S / D ), and calculatetheircorrespongdingratio , andthetwo groups ofdata were
statisticallyanalyzed.Results Theumbilicalarteryresistanceindexintheobservationgroupwas
significantlyhigherthanthatinthecontrolgroup ( P <0.01 ) .The middlecerebralartery
resistanceindex wassignificantlylowerthanthatincontrolgroup ( P <0.01 ) .Theratioof
PI umbilicalartery / middlecerebralartery , RI umbilicalartery / middlecerebralartery andS / D umbilicalartery / middlecerebralartery offetalumbilical 0.01 ), andhadagooddiagnosiseffectonthesensitivity , specificityand Youdenindexby
PI umbilicalartery / middlecerebralartery >1. 00 , RI umbilicalartery / middlecerebralartery >1. 00andS / D umbilicalartery / middlecerebralartery >
0. 72.Conclusion Resistanceindexesandtheircorrespondingratiooffetalumbilicalarteryand
middlecerebralarteryinpredictingfetalhypoxiahasimportantvalue , which wascapableof
predictingfetalhypoxiaandotheradversepregnancyphenomenons , andcandetecttheearly
abnormalitiestoreduceneonatalmortalityrate , guidetheclinicalintervention , improvethe
qualityofnewbornbirth.

Key words: fetalumbilicalartery , middlecerebralartery , resistanceindex , fetalhypoxia