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Journal | [J] 医学研究 Volume 5, Issue 5. 2023.
脑“白质高信号半暗带”
作者 : 高 德瑜, 王 余
DOI: 10.12361/2661-3603-05-05-120701
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摘要 / Abstract
目的：尽管脑“白质高信号半暗带”（WhiteMatterHyperintensitiesPenumbra，WMH半暗带），尚无标准的定义，但围绕WMH周围存在“WMH半暗带”已被广泛接受。本综述认为脑WMH半暗带是指脑WMH周围与WMH改变相似，但程度更轻微，易受损伤的脑组织。这种定义隐含着几个次要概念。①WMH半暗带与WMH相似、但程度更轻，围绕着白质损伤核心，可随时间的推移缓慢地向WMH演变或诱导其它损伤，且该过程是不均匀、多样、非线性演变的，具有异质性。②WMH半暗带是四维的，其损伤具有一定范围、可能可逆，与临床相关。
关键词 / Keywords
白质高信号；半暗带；特征
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