Table 1.

DTI-derived variables of interest

Fractional Anisotrophy (FA)	$\text{FA}=\frac{\sqrt{3}}{\sqrt{2}}\frac{\sqrt{{({\lambda }_1-\lambda )}^2+{({\lambda }_2-\lambda )}^2+{({\lambda }_3-\lambda )}^2}}{\sqrt{{\lambda }_1^2+{\lambda }_2^2+{\lambda }_3^2}}$
Axial Diffusivity (AD)	λ1 denoted as λ||
Radial Diffusivity (RD)	(λ2+λ3)/2 denoted as λ⊥

NOTE: λ₁, λ₂, & λ₃ represents the eigenvalues from the diffusion tensor & λ represents mean diffusivity