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肝脏移植术后桥脑中央髓鞘溶解症的MRI表现 被引量:7

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摘要 目的:探讨中央桥脑髓鞘溶解症(CPM)的MRI表现。材料和方法:对1例肝移植术后CPM患者行常规MRI、弥散加权成像(DWI)、频谱分析(MRS)和灌注成像检查并随访。结果:四肢瘫后第8天,桥脑、双侧丘脑内见对称性长T1、长T2信号,边缘增强;表观弥散系数(ADC)下降;N-乙酰天门冬氨酸(NAA)/肌酸(Cr)下降,胆碱(CHO)/Cr升高;病变区域脑血容积增加。结论:CPM具有较为特征的MRI表现,弥散受限提示病变早期存在细胞毒性水肿,NAA减少提示神经元丢失,CHO升高提示胶质增生的存在,灌注增加可能反映胶质细胞增生活跃。
出处 《中国医学影像学杂志》 CSCD 2007年第5期389-391,共3页 Chinese Journal of Medical Imaging
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