The value of MRI in diagnosis of placenta accrete

VernacularTitle:胎盘植入的MRI诊断价值
Author: Wei WANG ¹ ; Kai XU ; Yinqiang LIANG ; Yiyi WU
Author Information

1. 徐州医科大学附属医院影像科
Keywords: placenta accrete; magnetic resonance imaging
From: Journal of Practical Radiology 2017;33(12):1902-1905
CountryChina
Language:Chinese
Abstract: Objective To explore MRI features in diagnosis of placenta accrete(PA).Methods MRI images of 19 patients with PA and 14 normal subjects were reviewed retrospectively.MRI features of the placenta and adjacent structures were analyzed and compared.Results Compared to the MRI findings of the normal subjects,abnormal uterine bulging,heterogeneous signal intensity of the placenta,and hypo-intensity intraplacental bands on T2WI were significantly higher in the patients with placenta accrete (P= 0.000,P=0.003 and P=0.015,respectively).The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of the three features diagnosing placenta accrete were 78.95%,85.71%,88.24%,75.00%,81.82%;84.21%,71.43%,80.00%, 76.92%,78.79%;73.68%,71.43%,77.78%,66.67% and 72.73%,respectively.Conclusion MRI has important value in diagnosing PA.The MRI features of abnormal uterine bulging,heterogeneous signal intensity within the placenta,and hypo-intensity intraplacental bands on T2WI are useful for diagnosis.