Table 2.

Results of DTI-based tractography.

	aAMCI		AD		Comparison aMCI-AD (*)
CC portion	FA	MD	FA	MD	FA	MD
	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	p value	p value
CC1	0.47 (0.06)	0.86 (0.11)	0.45 (0.06)	0.94 (0.10)	n.s.	0.013
CC2	0.59 (0.06)	0.90 (0.09)	0.54 (0.07)	0.98 (0.11)	0.009	0.012
CC3	0.52 (0.06)	0.97 (0.07)	0.49 (0.05)	1.04 (0.09)	0.021	0.018
CC4	0.50 (0.07)	1.04 (0.11)	0.48 (0.07)	1.12 (0.13)	n.s.	0.034
CC5	0.58 (0.08)	0.93 (0.09)	0.54 (0.08)	1.03 (0.15)	n.s.	0.009
CC6	0.59 (0.09)	1.01 (0.20)	0.57 (0.09)	1.13 (0.24)	n.s.	0.039
CC7	0.54 (0.10)	0.97 (0.15)	0.53 (0.10)	1.03 (0.13)	n.s.	n.s.

Comparison between DTI-metrics (mean FA/MD) computed in the seven CC portions of the two groups (aMCI and AD patients).AD, Alzheimer’s disease; aMCI, amnestic mild cognitive impairment; CC, corpus callosum; FA, fractional anisotropy; MD, mean diffusivity. (*) p-values refer to t-test, significance level p < 0.05