Analysis of covariance †
FA and axial/radial diffusivity Stroke patients (n=18) Healthy controls (n=22) F (1, 36) p
Left anterior limb of internal capsule
FA 0.41 ± 0.08 0.48 ± 0.03 16.4 <0.001**
Axial diffusivity (×10-3) 4.16 ± 0.32 4.37 ± 0.30 4.24 0.05 *
Radial diffusivity (×10-3) 3.96 ± 0.30 4.04 ± 0.29 0.48 0.49
Right anterior limb of internal capsule
FA 0.43 ± 0.06 0.50 ± 0.03 23.0 <0.001**
Axial diffusivity (×10-3) 4.14 ± 0.33 4.35 ± 0.30 4.03 0.05
Radial diffusivity (×10-3) 3.93 ± 0.31 4.01 ± 0.30 0.46 0.50
Bilateral anterior limbs of internal capsule
FA 0.42 ± 0.07 0.49 ± 0.03 20.6 <0.001**
Axial diffusivity (×10-3) 4.15 ± 0.32 4.36 ± 0.30 4.15 0.05 *
Radial diffusivity (×10-3) 3.95 ± 0.30 4.02 ± 0.29 0.47 0.50
† Age and sex were entered as covariates; Data are the mean ± SD. * p < 0.05, ** p < 0.01; FA: Fractional Anisotropy; VOI: Volume of Interest
Table 2: FA values and axial/radial diffusivity in the VOI in patients and healthy control subjects.