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

Quantitative Imaging in Medicine and Surgery

Gavin P Winston¹ 

[1] Epilepsy Society MRI Unit, Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, London, UK

关键词: Diffusion MRI;    diffusion weighted MRI;    diffusion tensor imaging;    white matter;   

DOI  :  10.3978/j.issn.2223-4292.2012.12.05

学科分类：外科医学

来源: AME Publications

【 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).

【 授权许可】

Unknown