Blood Flow Parameters of Fetal Umbilical Artery, Middle Cerebral Artery and Isthmus of Aortic Arch Measured by Color Doppler Ultrasound in Diagnosis of Fetal Growth Restriction in Late Pregnancy

doi:10.7517/issn.1674-0475.190901

Abstract

Abstract: To analyze the changes of color Doppler flow imaging parameters of umbilical artery, middle cerebral artery and isthmus of aortic arch in fetal growth restriction (FGR) in late pregnancy, and its diagnostic value for FGR, 51 late pregnant women diagnosed as FGR in our hospital from May 2018 to March 2019 were selected as observation group, and 47 late pregnant women with normal pregnancy in the same period were selected as control group. The gestational weeks of the two groups were 34~36 weeks. The blood flow parameters such as pulsation index (PI), resistance index (RI), peak systolic velocity(PSV), end systolic reflux velocity(ESRV), end diastolic velocity(EDV), PSV/EDV(S/D) of umbilical artery, middle cerebral artery and isthmus of aortic arch were measured by GE voluson E8 color Doppler ultrasound, and the data were compared between the two groups. The results showed that, the levels of PI, RI, S/D in umbilical artery and ESRV in isthmus of aortic arch in the observation group were higher than those in the control group, the levels of PI, RI in middle cerebral artery and PSV/ESRV in isthmus of aortic arch were lower than those in control group, the difference was statistically significant (P<0.05). There was no significant difference in PSV levels between the two groups (P>0.05). In a word, blood flow parameters of umbilical artery, middle cerebral artery and isthmus of aortic arch of FGR fetus in late pregnancy changed to some extent. Among them, PI, RI, S/D of umbilical artery and middle cerebral artery, ESRV and PSV/ESRV of isthmus of aortic arch can be used as sensitive indicators for FGR diagnosis.

Key words: late pregnancy, fetal growth restriction, umbilical artery, middle cerebral artery, isthmus of aortic arch, color Doppler flow imaging

CLC Number:

WANG Zhuo, REN Xiue, ZHENG Lixia. Blood Flow Parameters of Fetal Umbilical Artery, Middle Cerebral Artery and Isthmus of Aortic Arch Measured by Color Doppler Ultrasound in Diagnosis of Fetal Growth Restriction in Late Pregnancy[J]. Imaging Science and Photochemistry, 2020, 38(2): 236-241.

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