Table 4.

Within‐patient correlations. Correlation coefficients between the four damage scores (z‐scores) across all voxels within each patient's white matter mask were calculated. Mean and SD of the correlation coefficients across patients are presented. The spatial variance in each measure explained by the other three measures is also reported (in %). FA(z): z‐score for fractional anisotropy; RD(z): z‐score for radial diffusivity; MTR(z): z‐score for magnetisation transfer ratio; MWF(z): z‐score for myelin water fraction

	FA(z)	RD(z)	MTR(z)	MWF(z)	% variance explained
FA(z)	1	−0.74 ± 0.08	0.38 ± 0.10	0.43 ± 0.08	56 ± 5
RD(z)		1	−0.52 ± 0.21	−0.58 ± 0.19	65 ± 7
MTR(z)			1	0.67 ± 0.23	57 ± 17
MWF(z)				1	52 ± 14