The physical and biological basis of quantitative parameters derived from diffusion MRI

[摘要] Diffusion magnetic resonance imaging is a quantitative imaging technique that measures the underlying molecular diffusion of protons. Diffusion-weighted imaging (DWI) quantifies the apparent diffusion coefficient (ADC) which was first used to detect early ischemic stroke. However this does not take account of the directional dependence of diffusion seen in biological systems (anisotropy).

[学科分类] 外科医学

[关键词] Diffusion MRI;diffusion weighted MRI;diffusion tensor imaging;white matter