2017 Imaging for Physicists Coursebook

Diffusion anisotropy => Diffusion Tensor Imaging

Isotropic diffusion

Anisotropic diffusion

Gordon Kindlimann

Mean Diffusivity

(MD)

Fractional

Anisotropy

(FA)

Kleenex tissue

New paper

Mean diffusivity:

average of all ADC measurements

sensitive to cellularity, edema, and necrosis

Fractional Anisotropy:

summary measure of structural integrity.,

sensitive to microstructural changes