Table 3.
Statistics of restriction measure (Po), anisotropy measures (FA from both inner-shells and all shells), and mean diffusivity measures (MSD and MD) for both WM and GM, which were segmented by FAST on Po maps of six subjects.
| Po | FA Inner-shells | FA All shells | MD = MSD/6Δ (10−6 mm2/sec) | MD (10−6 mm2/sec) Inner-shells | MD (10−6 mm2/sec) All shells | ||
|---|---|---|---|---|---|---|---|
| WM |
CV |
0.113 ± 0.013
0.114 |
0.505 ± 0.182
0.360 |
0.671 ± 0.183
0.273 |
701 ± 39
0.056 |
660 ± 140
0.212 |
564 ± 191
0.339 |
| GM |
CV |
0.076 ± 0.012
0.155 |
0.299 ± 0.164
0.548 |
0.329 ± 0.180
0.548 |
679 ± 52
0.077 |
778 ± 216
0.278 |
799 ± 360
0.451 |
**
The error denotes one standard deviation across six subjects and whole brain GM/WM.
** CV denotes the coefficient of variation, which is defined as the ratio of the standard deviation to the mean value.