Table 3.
Comparison of means of diffusion tensor imaging (DTI) measures of participants with bilateral connectivity (n=9)
| Ipsilateral CST (95% CI) | Contralateral CST (95% CI) | Paired mean difference (95% CI) | t | p a | Effect size (Cohen's d) | |
|---|---|---|---|---|---|---|
| Fractional anisotropy | 0.533 (0.509–0.557) | 0.495 (0.482–0.508) | 0.038 (0.017–0.059) | 4.121 | 0.003* | 1.52 |
| Volume (mean of fibers/voxel) | 12.193 (10.433–13.952) | 8.058 (6.144–9.972) | 4.135 (1.919–6.351) | 4.303 | 0.003* | 1.73 |
| Mean diffusivityb | 0.781 (0.772–0.789) | 0.838 (0.799–0.878) | −0.058 (−0.094 to −0.021) | −3.646 | 0.007* | −1.55 |
| Radial diffusivityb | 0.518 (0.500–0.536) | 0.583 (0.557–0.609) | −0.065 (−0.096 to 0.034) | −4.813 | 0.001* | −2.24 |
aTwo‐tailed paired t‐test. bUnit=10–3mm2/s. *Indicates p<0.05. CST, corticospinal tract; CI, confidence interval.