| 摘要: |
| ［摘要］ 目的 探讨胎盘植入产前诊断中核磁共振（MRI）的应用价值。方法 以100例具胎盘植入高危因素的孕中晚期孕妇为研究对象，均行常规盆腔MRI检查，将MRI检查结果与手术、病理结果予以比较分析。结果 MRI评价胎盘植入敏感度为84.38%，特异度为83.33%，阳性预测值及阴性预测值分别为90.00%和75.00%。其MRI征象多表现为T2WI低信号带、胎盘信号不均匀、子宫下段膨隆、胎盘组织侵入子宫肌层。结论 MRI应用于胎盘植入产前诊断临床，准确性较高，漏诊率低，可作为辅助诊断手段加以推广。 |
| 关键词: 胎盘植入 核磁共振 产前诊断 漏诊 |
| DOI：10.3969/j.issn.1674-3806.2016.08.10 |
| 分类号:R 455 |
| 基金项目: |
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| The application value of magnetic resonance imaging(MRI) in prenatal diagnosis of placenta implantation |
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LI Yu-zhe, YANG Hong, WANG Chen-hong
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The application value of magnetic resonance imaging(MRI) in prenatal diagnosis of placenta implantation
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| Abstract: |
| ［Abstract］ Objective To explore the application value of MRI in the prenatal diagnosis of placenta implantation.Methods One hundred pregnant women with high risk factors of placenta implantation were studied, all of whom underwent routine pelvic MRI examination. The MRI examination results were compared with the surgical and pathological results.Results The sensitivity and specificity of MRI were 84.38% and 83.33% respectively, and the positive predictive value and negative predictive value were 90.00% and 75.00% respectively. The MRI features were low signal band in T2WI, uneven signal in the placenta, the lower part of the uterus and placenta tissue invasion of uterine muscular layer.Conclusion The application of MRI in the prenatal diagnosis of placenta implantation is of high accuracy with a low rate of missed diagnosis. |
| Key words: Placenta implantation Magnetic resonance imaging(MRI) Prenatal diagnosis Missed diagnosis |
