Table 2.

DTI-derived metrics for white matter tracts for each semantic dementia patient with means for the two study groups

		Case 1	Case 2	Case 3	Case 4	Case 5	Patients, mean (SD)	Controls, mean (SD)	P-values
ILF	MD	0.77	0.76	0.72	0.73	0.66	0.73 (0.05)	0.67 (0.01)	<0.001
	FA	0.29	0.32	0.32	0.31	0.33	0.31 (0.01)	0.32 (0.01)	0.20
	λ//	1.04	1.04	0.98	1.00	0.91	0.99 (0.06)	0.92 (0.02)	<0.001
	λ⊥	0.64	0.63	0.59	0.60	0.53	0.60 (0.04)	0.55 (0.01)	<0.001
Arcuate	MD	0.68	0.71	0.66	0.62	0.59	0.65 (0.05)	0.60 (0.01)	0.002
	FA	0.30	0.32	0.32	0.33	0.34	0.32 (0.02)	0.34 (0.02)	0.001
	λ//	0.91	0.97	0.89	0.84	0.82	0.89 (0.06)	0.84 (0.02)	0.01
	λ⊥	0.57	0.58	0.62	0.50	0.48	0.53 (0.04)	0.49 (0.01)	<0.001
Fronto- parietal SLF	MD	0.64	0.65	0.66	0.61	0.60	0.63 (0.03)	0.61 (0.01)	0.09
	FA	0.28	0.31	0.30	0.28	0.32	0.30 (0.02)	0.32 (0.02)	0.001
	λ//	0.83	0.88	0.87	0.80	0.81	0.84 (0.04)	0.82 (0.02)	0.45
	λ⊥	0.47	0.54	0.55	0.52	0.49	0.53 (0.02)	0.50 (0.01)	0.02
Uncinate	MD	NA	0.87	0.75	0.73	0.71	0.77 (0.07)	0.67 (0.02)	<0.001
	FA	NA	0.26	0.28	0.27	0.27	0.27 (0.01)	0.31 (0.01)	<0.001
	λ//	NA	1.11	0.98	0.96	0.93	1.00 (0.08)	0.91 (0.02)	<0.001
	λ⊥	NA	0.66	0.64	0.62	0.60	0.65 (0.07)	0.56 (0.02)	<0.001
Genu of the corpus callosum	MD	0.73	0.80	0.80	0.74	0.72	0.76 (0.04)	0.73 (0.02)	0.85
	FA	0.34	0.32	0.37	0.33	0.33	0.34 (0.02)	0.35 (0.01)	0.02
	λ//	1.03	1.10	1.16	1.03	1.00	1.06 (0.06)	1.04 (0.03)	0.08
	λ⊥	0.58	0.64	0.62	0.59	0.58	0.60 (0.03)	0.58 (0.02)	0.77
Splenium of the corpus callosum	MD	0.77	0.67	0.71	0.68	0.66	0.70 (0.04)	0.71 (0.03)	0.51
	FA	0.38	0.38	0.39	0.37	0.37	0.38 (0.01)	0.38 (0.01)	0.17
	λ//	1.12	0.98	1.05	0.98	0.94	1.01 (0.07)	1.04 (0.05)	0.15
	λ⊥	0.59	0.52	0.54	0.53	0.51	0.54 (0.03)	0.55 (0.02)	0.32

MD, λ_// and λ_⊥ values are ×10⁻³ mm² s⁻¹.

NA = not applicable.

P-values refer to Fischer Least Significant Difference Test.