Diagnostic and Interventional Radiology
Abdominal Imaging - Original Article

Conventional MRI features for predicting the clinical outcome of patients with invasive placenta

1.

Department of Radiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China

2.

Department of Interventional Radiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China

3.

Department of Obstetrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, China

Diagn Interv Radiol 2017; 23: 173-179
DOI: 10.5152/dir.2016.16412
Read: 411 Downloads: 160 Published: 03 September 2019

Abstract

PURPOSE: We aimed to evaluate whether morphologic magnetic resonance imaging (MRI) features could help to predict the maternal outcome after uterine artery embolization (UAE)-assisted cesarean section (CS) in patients with invasive placenta previa.

 

METHODS: We retrospectively reviewed the MRI data of 40 pregnant women who have undergone UAE-assisted cesarean section due to suspected high risk of massive hemorrhage caused by invasive placenta previa. Patients were divided into two groups based on the maternal outcome (good-outcome group: minor hemorrhage and uterus preserved; poor-outcome group: significant hemorrhage or emergency hysterectomy). Morphologic MRI features were compared between the two groups. Multivariate logistic regression analysis was used to identify the most valuable variables, and predictive value of the identified risk factor was determined.   

 

RESULTS: Low signal intensity bands on T2-weighted imaging (P < 0.001), placenta percreta (P = 0.011), and placental cervical protrusion sign (P = 0.002) were more frequently observed in patients with poor outcome. Low signal intensity bands on T2-weighted imaging was the only significant predictor of poor maternal outcome in multivariate analysis (P = 0.020; odds ratio, 14.79), with 81.3% sensitivity and 84.3% specificity.

 

CONCLUSION: Low signal intensity bands on T2-weighted imaging might be a predictor of poor maternal outcome after UAE-assisted cesarean section in patients with invasive placenta previa.

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EISSN 1305-3612