MRI诊断前置血管的价值

发布时间：2018-05-21 01:15

本文选题：前置血管 + MRI　；参考：《临床放射学杂志》2017年08期

【摘要】：目的探讨MRI在产前诊断前置血管(VP)的临床价值。方法回顾性分析20例VP的产前MRI表现。结果产前MRI诊断VP的准确率为100%。中央性前置胎盘、边缘性前置胎盘、球拍状胎盘、帆状胎盘并发VP概率最高,分别为1.1%、1.1%、1.47%、1.47%,脐带汇入位置异常并发VP概率高于胎盘位置异常(0.22%、0.13%)。VP在不同切面上,T_2WI FSE及SSFSE序列均表现为管状或类圆形断面流空信号。20例中8例在胎盘边缘走行,14例轴位走行方向自后向前,16例冠状面和矢状面图像走行方向自下斜向上。结论 MRI多方位成像可以清晰显示VP,有较高的诊断价值。
[Abstract]:Objective to investigate the clinical value of MRI in prenatal diagnosis of VPs. Methods Antepartum MRI findings of 20 cases of VP were retrospectively analyzed. Results the accuracy of prenatal MRI in the diagnosis of VP was 100%. Central placenta previa, marginal placenta previa, racket placenta and sail placenta were most likely to be associated with VP. The probability of abnormal umbilical cord entrainment with VP was higher than that of placental abnormal position 0.220.13. VP showed tubular or circular cross-section flow emptiness signal on different sections. 8 out of 20 cases performed axial position along the edge of placenta, both on T _ 2WI and SSFSE sequences, which were tubular or circular cross-sectional emptiness signal. The incidence of abnormal umbilical cord entrances was higher than that of placental abnormal position 0.22 / 0.13. VP showed tubular or circular cross-section flow emptying signal on different sections of the placenta in 8 out of 20 cases. There were 16 cases of coronal and sagittal images in the direction of walking from backward to forward. Conclusion MRI multi-directional imaging can clearly display MRI and has high diagnostic value.
【作者单位】：广东省妇幼保健院放射科;广州医科大学附属肿瘤医院放射科;广州医科大学附属第三医院放射科;
【基金】：广东省科技计划项目(粤科规划字[2013]137号-8)
【分类号】：R445.2;R714.5

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