Comparison of the diagnostic value of 3.0 T MRI HASTE sequence and high-frequency color Doppler ultrasound for high-risk placenta previa combined with placenta accreta
10.3969/j.issn.1009-0754.2025.01.009
- VernacularTitle:磁共振HASTE序列与高频彩色多普勒超声技术对凶险型前置胎盘合并胎盘植入诊断价值比较
- Author:
Yue ZHAO
1
;
Xueyang HU
;
Lin SUN
;
Rui ZHANG
;
Zhibao WANG
Author Information
1. 071000 河北保定,保定市第二医院核磁室
- Keywords:
High-risk placenta previa;
Placenta accreta;
Ultrasound;
Fast magnetic resonance imaging;
Diagnosis
- From:
Journal of Navy Medicine
2025;46(1):38-42
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the value of high-field strength MRI half-Fourier single shot turbo spin-echo(HASTE)sequence with high-frequency color Doppler ultrasound for the diagnosis of placenta previa combined with placenta accreta.Methods A total of 116 pregnant women with suspected high-risk placenta previa and placenta accreta who underwent cesarean section at The No.2 Hospital of Baoding from December 2019 to December 2022 were selected as research objects.All parturients took examinations of ultrasound and high-field MRI before surgery.Pathological diagnosis after cesarean section was used as the gold standard for analysis of the consistency between MRI and ultrasound results and pathological results.The value of HASTE sequence and high-frequency ultrasound in diagnosing placenta accreta was compared.Results Pathological results confirmed that 86 patients had high-risk placenta previa and placenta accreta.The positive predictive values of ultrasound,MRI,and ultrasound+MRI in diagnosis of high-risk placenta previa combined with placenta accreta were 93.51%,97.62%,and 98.81%,respectively.The negative predictive values were 64.10%,87.50%,and 90.63%,respectively.The accuracies were 83.62%,94.83%,and 96.55%,respectively.The sensitivities were 83.72%,95.35%,and 96.51%,respectively.The specificities were 83.33%,93.33%,and 96.67%,respectively.The Kappa values for consistency were 0.611,0.868,and 0.912,respectively.The accuracy of MRI in diagnosis of high-risk placenta previa combined with placenta accreta was higher than that of ultrasound(P<0.05).Conclusion 3.0 T MRI HASTE sequence has greater efficacy and higher accuracy in diagnosis of high-risk placenta previa combined with placenta accreta.
