Comparison of DTI parameters among corticospinal tracts for the primary motor cortex, primary somatosensory cortex, dorsal premotor cortex, and supplementary motor area
| Tract Volume | FA | MD | |
|---|---|---|---|
| M1 | 2373.6 | 0.40 | 0.90 |
| (577.6) | (0.03) | (0.07) | |
| S1 | 2037.7 | 0.40 | 0.92 |
| (577.3) | (0.03) | (0.08) | |
| dPMC | 647.0 | 0.48 | 0.81 |
| (619.3) | (0.05) | (0.06) | |
| SMA | 1307.2 | 0.46 | 0.86 |
| (738.9) | (0.04) | (0.06) | |
| P value in CSTs for | |||
| M1 and those for the S1 | .005 | .634 | .160 |
| M1 and those for the dPMC | .000 | .000 | .000 |
| M1 and those for the SMA | .000 | .000 | .002 |
| S1 and those for the dPMC | .000 | .000 | .000 |
| S1 and those for the SMA | .000 | .000 | .000 |
| dPMC and those for the SMA | .000 | .008 | .000 |
Note:—FA indicates fractional anisotropy; MD, mean diffusivity, MD × 10−3 (mm2/s).
Values represent mean (±SD); post hoc least significant difference test was used for comparisons of DTI parameters.