n. a *magnetic resonance imaging technique using *diffusion tensor imaging to show the direction of the main nerve tracts in the brain and their connections.
a variant of *diffusion weighted imaging in which both the direction and the amount of diffusion of water molecules in a tissue are coded in the image. This MRI technique can be valuable in linear structures, such as nerves and muscle fibres. In the brain the major tracts and their communications can be studied with this technique (see tractography).... diffusion tensor imaging
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