文章摘要
王亚 ，王强 ，王忠 ，方运勇 ，梁福笑.妊娠期高血压脑后循环可逆性脑病综合征MRI表现 及诊断价值[J].神经损伤功能重建,2018,13(8):383-386
妊娠期高血压脑后循环可逆性脑病综合征MRI表现 及诊断价值
MRI Features and Diagnostic Value of Posterior Reversible Encephalopathy Syndrome Causedby Pregnancy-Induced Hypertension
  
DOI：
中文关键词: 妊娠期高血压  脑后部可逆性脑病综合征  磁共振成像
英文关键词: pregnancy-induced hypertension  posterior reversible encephalopathy syndrome  magnetic resonance imaging
基金项目:东莞市科技局立项 课题资助项目（No. 201610515000510）
作者单位
王亚a ，王强a ，王忠a ，方运勇b ，梁福笑c 东莞市妇幼保健院 a. 放射科，b. 内科， c. 妇产科 
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中文摘要:
      目的：分析妊娠期高血压脑后循环可逆性脑病综合征（PRES）的MRI特征及诊断价值。方法：回顾性 分析20例妊娠期高血压患者临床及MRI资料。所有患者治疗前行MRI平扫及DWI扫描。结果：本组伴有 PRES 9例（45%），不伴有PRES 11例。MRI显示有PRES组共30个主要病灶，枕叶12个，胼胝体压部3个， 顶叶半卵圆中心5个，颞叶5个，额叶3个。病灶主体位于皮质下白质、部分邻近皮质亦有受累。T1WI等、稍 低信号，T2WI、T2WI/flair稍高信号。DWI以等、稍高信号为主，ADC以等、稍低信号为著。T2WI/flair发现病 灶数最多，2例仅在DWI序列上显示清晰。结论：妊娠期高血压PRES MRI具有一定的特征性，DWI结合 T2WI/flair能发现更多病灶。
英文摘要:
      To investigate the MRI features and the diagnostic value of posterior reversible encephalopathy syndrome (PRES) caused by pregnancy-induced hypertension (PIH). Methods: Clinical and MRI data of 20 cases of PIH were retrospectively reviewed. All cases were examined by MRI scanning and diffusion weighted imaging (DWI) before drug therapy. Results: There were 9 cases with PRES (45%) and 11 cases without PRES. MRI revealed 30 lesions in the PRES group: 12 in the occipital lobe, 3 in the corpus callosum, 5 in the parietal lobe centrum semiovale, 5 in the temporal lobe, and 3 in the frontal lobe. Lesion location involved sub-cortical white matter and neighboring portions of the cortex. Lesions were mildly hypointense on T1WI and mildly hyperintense on T2WI and T2WI/flair. Lesions were mildly hyperintense on DWI and hypointense on apparent diffusion coefficient (ADC). T2WI/flair detected the highest number of lesions. Two cases were only able to be clearly imaged on the DWI sequence. Conclusion: MRI features of PRES caused by PIH display certain characteristics; DWI combined with T2WI/flair can detect more lesions.
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