Table 4.
Correlation of diffusion parameters of the CC and upper extremity motor behavior.
| DTI-based tractography |
CSD-based tractography |
|||
|---|---|---|---|---|
| Pearson's r | p-Value | Pearson's r | p-Value | |
| FM score | ||||
| Number of tracts | 0.163 | 0.416 | 0.103 | 0.608 |
| Tract volume | 0.394 | 0.042 | 0.108 | 0.591 |
| FA | 0.032 | 0.874 | 0.476 | 0.120 |
| ADC | −0.077 | 0.702 | −0.103 | 0.609 |
| Ad | −0.296 | 0.134 | 0.023 | 0.910 |
| RD | −0.140 | 0.486 | −0.250 | 0.209 |
| Mean WMFT Rate | ||||
| Number of tracts | 0.283 | 0.153 | 0.156 | 0.436 |
| Tract volume | 0.474 | 0.012 | 0.183 | 0.360 |
| FA | 0.041 | 0.839 | 0.504 | 0.007* |
| ADC | −0.077 | 0.702 | −0.170 | 0.398 |
| AD | −0.254 | 0.201 | −0.041 | 0.839 |
| RD | −0.118 | 0.558 | −0.305 | 0.122 |
AD, axial diffusivity; ADC, apparent diffusion coefficient; FA, fractional anisotropy; FM, Fugl-Meyer; RD, radial diffusivity; WMFT, Wolf motor function test.
*
With correction for multiple comparisons p-values are considered significant at ≤ 0.008.