Mean values of diffusion tensor imaging parameters in FA skeletons with a significant difference on tract-based spatial statistics at 12 months of agea
| Patients (n = 20) | Controls (n = 13) | P | |
|---|---|---|---|
| FA | 0.46 ± 0.04 | 0.51 ± 0.02 | <.001 |
| AD, λ1 (mm2/s) | 0.0016 ± 0.0001 | 0.0016 ± 0.0001 | NS |
| RD, (λ2+ λ3) / 2 (mm2/s) | 0.00074 ± 0.00007 | 0.00066 ± 0.00006 | .007 |
| MD (mm2/s) | 0.0010 ± 0.0001 | 0.0010 ± 0.0007 | NS |
Note:—AD indicates axial diffusivity; MD, mean diffusivity; NS, not significant; RD, radial diffusivity.
↵a Statistical analysis was performed with a nonparametric Mann-Whitney U test.