Diffusion metrics of lesioned and contralateral corticospinal tract in stroke with motor impairment
| Diffusion Metric | Lesioned CSTa | Contralateral CSTa | P Value |
|---|---|---|---|
| MD | 0.91 (0.07) | 0.96 (0.03) | .003 |
| Axial diffusivity | 1.35 (0.12) | 1.44 (0.06) | .002 |
| Radial diffusivity | 0.70 (0.05) | 0.72 (0.04) | .031 |
| Fractional anisotropy | 0.41 (0.03) | 0.43 (0.03) | .025 |
| MK | 1.19 (0.12) | 1.10 (0.07) | .002 |
| Axial kurtosis | 0.94 (0.11) | 0.84 (0.03) | .001 |
| Radial kurtosis | 1.48 (0.18) | 1.43 (1.13) | .193 |
| AWF | 0.41 (0.02) | 0.40 (0.02) | .246 |
| Intra-axonal diffusivity | 0.71 (0.09) | 0.78 (0.06) | .001 |
| Extra-axonal axial diffusivity | 1.95 (0.17) | 2.05 (0.10) | .002 |
| Extra-axonal radial diffusivity | 1.07 (0.07) | 1.10 (0.05) | .049 |
Note:—AWF indicates axial water fraction.
↵a Mean (SD).