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| Correlation between the value of shear wave elasticity of placenta of pregnant women with preeclampsia and their blood flow parameters of umbilical artery |
| Zhoushan Maternal and Child Health Care Hospital, Zhejiang Province, 316000 |
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Abstract To analyze the change of shear wave elasticity value of the placenta of pregnant women with preeclampsia (PE), and to study its correlation with their blood flow parameters of umbilical artery. Methods: The pregnant women with PE were selected and divided into group A (women without severe PE) and group B (women with severe PE), and the normal pregnant women were selected in group C from August 2017 to December 2019. The elastic modulus of placenta and the blood flow parameters of umbilical artery of these women were examined by ultrasonography. The values of the elastic modulus of placenta and the blood flow parameters of umbilical artery of the women were compared among these groups. The correlation between the elastic modulus of placenta of the women and their blood flow parameters of umbilical artery was analyzed. Results: The areas of central fetal face, central matrix surface, and surface edges fetal face, the values of matrix and average elastic modulus of the placenta, and the values of PI, RI and S/D of the women in group C, group A, and group B had increased gradually (all P<0.05). The value of average elastic modulus of placenta of the women in group A was positively correlated with their PI, RI values of umbilical artery (P<0.001), but had no correlation with their umbilical artery S/D value (P>0.05). The value of average elastic modulus of placenta of the women in group B was positively correlated with their RI value of umbilical artery (P<0.001), but had no correlation with their umbilical artery PI and S/D values (P>0.05). Conclusion: The placenta hardness of pregnant women with PE increases abnormally. The shear wave elasticity value of the placenta of the women with PE is association with their blood flow parameters of umbilical artery.
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