分子影像学杂志2025，Vol.48Issue(4)：441-445,5.DOI:10.12122/j.issn.1674-4500.2025.04.08
产前MRI在完全性前置胎盘患者胎盘植入及产后出血的临床价值
Clinical value of prenatal MRI in placenta accreta and postpartum hemorrhage in patients with complete placenta previa
姜海东 1沈俊杰 2王伟 1张文婷1
作者信息
- 1. 蚌埠医科大学第一附属医院放射科,安徽 蚌埠 233000||蚌埠医科大学医学影像学院研究生院,安徽 蚌埠 233000
- 2. 蚌埠医科大学第一附属医院放射科,安徽 蚌埠 233000
- 折叠
摘要
Abstract
Objective To explore the clinical value of MRI in identifying high-risk factors for placenta accreta and postpartum hemorrhage in patients with complete placenta previa.Methods A total of 50 patients with complete placenta previa admitted to the First Affiliated Hospital of Bengbu Medical University from November 2020 to October 2024 were selected as the study subjects.Based on pathological results,the patients were divided into a placenta accreta group(n=41)and a non-placenta accreta group(n=9).According to the occurrence of postpartum hemorrhage,the patients were further divided into a postpartum hemorrhage group(n=42)and a non-postpartum hemorrhage group(n=8).The relationship between MRI features and the occurrence of placenta accreta and postpartum hemorrhage in patients with complete placenta previa was analyzed.The Kappa consistency test was used to evaluate the diagnostic efficacy of prenatal MRI.Multivariate logistic regression analysis was performed to assess MRI features as independent risk factors for postpartum hemorrhage.Results Prenatal MRI findings showed good consistency with pathological results(Kappa=0.675).Comparisons between the placenta accreta group and the non-placenta accreta group,as well as between the postpartum hemorrhage group and the non-postpartum hemorrhage group,revealed statistically significant differences in six out of seven MRI features(P<0.05),except for the sign of thickened and irregular bladder wall.Multivariate logistic regression analysis indicated that the T2WI low-signal band and placental thickness in the lower uterine segment were independent risk factors for postpartum hemorrhage(P<0.05).Conclusion Prenatal MRI demonstrates high consistency with pathological results in diagnosing placenta accreta.The T2WI low-signal band and placental thickness in the lower uterine segment are independent risk factors for predicting postpartum hemorrhage,providing valuable predictive insights for clinical diagnosis and treatment.关键词
完全性前置胎盘/磁共振成像/胎盘植入/产后出血Key words
complete placenta previa/magnetic resonance imaging/placenta accreta/postpartum hemorrhage引用本文复制引用
姜海东,沈俊杰,王伟,张文婷..产前MRI在完全性前置胎盘患者胎盘植入及产后出血的临床价值[J].分子影像学杂志,2025,48(4):441-445,5.
