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子痫患者可逆性后部脑病综合征的临床及磁共振特征

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摘要 目的探讨子痫患者可逆性后部脑病综合征(PRES)的临床和磁共振成像(MRI)表现。方法回顾性分析10例子痫后PRES患者的临床和磁共振资料,所有病例均行磁共振T1WEI、T2WI、FLAIR和DWI序列,4例接受磁共振静脉血流成像(MRV)检查,3例增强扫描,7例治疗后复查MR。对病灶部位的分布及受累几率统计分析。结果10例子痫前期出现抽搐、头痛、意识障碍和视物模糊,均有突发血压升高病史,在终止妊娠后1~3d症状加重。MRI表现为脑后部对称性长T1长T2信号为主,FLAIR呈高信号,DWI等信号,ADC图呈高信号8例,等信号2例。临床治疗后1~2周复查脑白质区病灶完全吸收,灰质区大部分吸收,累及基底节区2例吸收缓慢。病灶累及双侧顶枕叶白质区与颞叶、基底节区、额叶、脑干和小脑受累几率比较差异有统计学意义(P〈0.05)。结论子痫后PRES的MRI典型征象是顶枕叶白质区多发对称性血管源性水肿,临床早期诊断和及时治疗是可逆性恢复的关键。
出处 《海峡预防医学杂志》 CAS 2011年第4期74-76,共3页 Strait Journal of Preventive Medicine
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参考文献11

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