Table 3.

Correlation between disease duration, lesion loads, and diffusion tensor imaging indices of the corpus callosum.

		DD	T2/FLAIR	T2/FLAIRCC
CC total	AD	-0.11 (0.56)	0.15 (0.42)	0.33 (0.07)
	RD	0.11 (0.55)	0.54 (0.002)*	0.39 (0.03)**
	FA	-0.08 (0.67)	-0.54 (0.002)*	-0.31 (0.09)
	MD	0.04 (0.82)	0.48 (0.007)*	0.46 (0.01)*

The results are expressed as the Spearman rank, with the p value in brackets.

AD: axial diffusivity; CC: corpus callosum; CC1: genu; CC2: anterior midbody; CC3: posterior midbody; CC4: isthmus; CC5: splenium; CC total: corpus callosum total; DD: disease duration; FA: fractional anisotropy; HC: healthy control group; MD: mean diffusivity; RD: radial diffusivity; T2/FLAIR: whole-brain T2-FLAIR lesion load; T2/FLAIR CC: corpus callosum T2-FLAIR lesion load.