Diffusion-weighted magnetic resonance imaging

被引:40
|
作者
Mukherji, SK
Chenevert, TL
Castillo, M
机构
[1] Univ Michigan Hlth Syst, Dept Radiol, Ann Arbor, MI 48109 USA
[2] Univ Michigan Hlth Syst, Dept Otolaryngol Head & Neck Surg, Ann Arbor, MI 48109 USA
[3] Univ N Carolina, Sch Med, Dept Radiol, Chapel Hill, NC 27514 USA
关键词
D O I
10.1097/00041327-200206000-00013
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Diffusion-weighted magnetic resonance imaging is a specialized technique that measures the degree of diffusion of water molecules within extracellular space and between intracellular and extracellular space. Diffusion-weighted imaging signal is high (bright) when diffusion is restricted, as occurs in cytotoxic damage from ischemia, inflammation, trauma, or tumor. This technique, now available on most magnetic resonance imaging units, is especially helpful in detecting early ischemic stroke and multiple sclerosis and in differentiating arachnoid cyst from epidermoid tumor and brain abscess from neoplasm.
引用
收藏
页码:118 / 122
页数:5
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