Multilevel Deficiency of White Matter Connectivity Networks in Alzheimer’s Disease: A Diffusion MRI Study with DTI and HARDI Models

Table 3

The comparison of the global connectivity characteristics between the AD and the NC groups with the DTI and HARDI models, respectively.

DTI
AD	524 ± 93	674 ± 134	1.46 ± 0.18	1.20 ± 0.06	1.22 ± 0.11
NC	617 ± 114	748 ± 121	1.39 ± 0.12	1.16 ± 0.04	1.20 ± 0.07
Difference	−93	−74	0.07	0.03	0.02
value	0.03	0.12	0.12	0.07	0.20
HARDI
AD	426 ± 100	578 ± 126	1.66 ± 0.24	1.27 ± 0.08	1.31 ± 0.16
NC	543 ± 134	674 ± 144	1.53 ± 0.19	1.22 ± 0.06	1.25 ± 0.11
Difference	−116	−95	0.14	0.05	0.06
value	0.01	0.05	0.03	0.03	0.04