MRI在血管前置诊断中的应用价值初探

发布时间：2018-03-09 04:06

本文选题：血管前置　切入点：磁共振成像　出处：《临床放射学杂志》2017年04期 　论文类型：期刊论文

【摘要】：目的探讨MRI在血管前置诊断中的价值。方法对临床病理证实的7例血管前置的MRI表现进行回顾性分析,其中2例为双胎妊娠。图像分析以SSFSE T_2WI和抑脂FSE T_2WI序列轴位和矢状位为主,重点观察宫颈内口上方及其周围的异常脐血管结构及其走行,并注意胎盘位置及变异情况。结果 7例MRI检查均于胎先露与宫颈内口间见一根或数根异常走行的脐血管。7例均存在胎盘低置或前置,以及帆状胎盘、球拍状胎盘或副胎盘变异。其中,合并血管前置的胎盘变异有帆状胎盘4例,球拍状胎盘1例,副胎盘2例。双胎妊娠均为帆状胎盘血管前置。结论 MRI在血管前置的产前诊断上发挥着重要的作用,尤其是在临床怀疑而超声诊断不明,或当超声提示帆状胎盘、多胎妊娠、胎盘低置时,应常规行MRI检查以除外血管前置。
[Abstract]:Objective to evaluate the value of MRI in the diagnosis of vascular preposition. Methods the MRI findings of 7 cases of vascular preposition confirmed by clinical pathology were retrospectively analyzed. Among them, 2 cases were twin pregnancy. The main image analysis was SSFSE T2WI and FSE T2WI sequence axial and sagittal position. The abnormal umbilical cord blood vessel structure and its course were observed on and around the cervical internal orifice. Results one or more abnormal umbilical cord blood vessels were found in 7 cases of placenta placenta, placenta previa, and placenta sails on MRI examination. There were 4 cases of placental variation associated with vascular previa and 1 case of racket placenta. Conclusion MRI plays an important role in the prenatal diagnosis of vascular previa, especially in clinical suspected and unknown ultrasound diagnosis, or when ultrasound suggests that sails placenta and multiple pregnancy. When placenta is low, MRI examination should be performed routinely to exclude the preposition of blood vessels.
【作者单位】：广东省妇幼保健院放射科;
【分类号】：R445.2;R714.5

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