Value of three-dimensional energy Doppler ultrasound parameters combined with placental growth factor in predicting early-onset fetal growth restriction
Objective To explore the value of three-dimensional energy Doppler ultrasound pa-rameters combined with placental growth factor(PLGF)in predicting early-onset fetal growth restric-tion(FGR).Methods Eighty pregnant women with early-onset FGR were selected as FGR group,and another 50 healthy pregnant women with prenatal examination were selected as control group.Three-dimensional energy Doppler ultrasonography was performed for all subjects at 1 1 to 13 weeks plus 6 days of gestation,and placental volume(PV),vascularization index(VI),flow index(FI)and vascularization-flow index(VFI)were collected.Serum PLGF level was measured in all subjects at 14 to 16 weeks plus 6 days of gestation.Results The PV,VI,FI,VFI and serum PLGF level in the FGR group were significantly lower than those in the control group(P<0.05).Multiple Logistic regression analysis showed that low PV,VI,FI and VFI as well as serum PLGF level were risk factors for early-onset FGR(P<0.05).Receiver operating characteristic(ROC)curve analysis showed that PV,VI,VFI and serum PLGF had certain predictive value for early-onset FGR,with areas under the curve of 0.723(95%CI,0.629 to 0.817),0.776(95%CI,0.693 to 0.860),0.746(95%CI,0.653 to 0.839)and 0.799(95%CI,0.713 to 0.884)respectively.The predictive value of FI for early-onset FGR was moderate,with an area under the curve of 0.625(95%CI,0.524 to 0.725).Analysis showed that the combination of PLGF and VI as well as PLGF and VFI had good predictive values for early-onset FGR,the sensitivity,specificity and Youden index of PLGF combined with VI were 86.25%,76.00%and 0.623 respectively,while those of PLGF combined with VFI were 81.25%,80.00%and 0.613 respectively.Conclusion The combination of three-dimensional en-ergy Doppler ultrasound parameters and PLGF has certain predictive value for early-onset FGR,and can be used for clinical screening of high-risk populations with early-onset FGR.
fetal growth restrictionthree-dimensional energy Doppler ultrasoundplacental growth factorpredictive value