Study of microcirculation and microstructure of placental with pregnancy-induced hypertension by using MRI intravoxel incoherent motion at plateau area
10.3969/j.issn.1002-1671.2024.05.017
- VernacularTitle:MRI体素内不相干运动对高原妊高征胎盘微循环及微结构的研究
- Author:
Fei LIU
1
;
Zhanyue YAN
;
Lianyun KANG
;
Chen FANG
;
Shenglan WANG
;
Gang LIU
Author Information
1. 青海红十字医院放射影像介入科,青海 西宁 810000
- Keywords:
placenta;
blood flow;
magnetic resonance imaging;
pregnancy-induced hypertension;
plateau area
- From:
Journal of Practical Radiology
2024;40(5):756-759,804
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study placental microcirculation and microstructure of pregnant women with pregnancy-induced hyper-tension by using MRI intravoxel incoherent motion(IVIM)at plateau area.Methods A retrospective analysis was performed on 22 healthy pregnant women at third trimester with single birth and 20 pregnant women with pregnancy-induced hypertension.All subjects underwent ultrasound,routine MRI and IVIM examination.The D,D*,f values of the whole placental and various parts of the placental,estimated fetal weight(EFW)and postnatal weight were measured and recorded.The differences of two groups data were analyzed by independent sample t test or one-way analysis of variance,and then multiple comparisons of placental quantitative parameters between the two groups were analyzed by Bonferroni method.Results The fetal side and whole placental f values in healthy pregnant women at third trimester were higher than pregnancy-induced hypertension(P＜0.05),the maternal side and whole placental D values in healthy pregnant women at third trimester were higher than pregnancy-induced hypertension(P＜0.05),the EFW and fetal birth weight in healthy pregnant women at third trimester were higher than pregnancy-induced hypertension(P＜0.05).Conclusion IVIM can effectively evaluate placental blood flow microcirculation and microstructure with pregnancy-induced hypertension at plateau area,and provide a new proof for clinical evaluation of placental structure and function changes.
