M RI is nomnvasive imaging technique that can display cerebral information . In recent years , there were many experimental reports about pathophysiological process of Wallerian degeneration after cerebral infarction , hut these studies lacked visibility . The combination of various MR techniques can make the course of Wallerian degeneration visualization . The application of various M RI techniques on Wallerian degeneration after cerebral infarction , from imaging principle and pathogenesis , were reviewed in this article .%MRI是非侵入性成像技术,能无创显示颅内各种信息.近年来许多学者通过动物实验研究脑梗死后沃勒变性的病理生理过程,但缺乏可视性.联合运用多种MR成像技术研究沃勒变性,可使其病程变化变得可视化.本文从成像原理及发病机制等方面,对多种磁共振成像技术在脑梗死沃勒变性中的应用进行综述.
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