Table 2 Summary of the differences between the pre-radio frequency rhizotomy and post-radiofrequency rhizotomy DTI metrics of the lesion side (N = 37)

Volume (mm³)

48.6 (18.7)

56.4 (25.0)

0.014*

Fractional anisotropy

0.268 (0.093)

0.306 (0.051)

0.015*

Apparent diffusion coefficient (*10⁻³)

1.640 (0.261)

1.484 (0.190)

0.001*

Axial diffusivity (*10⁻³)

2.075 (0.242)

1.953 (0.244)

0.016*

Radial diffusivity (*10⁻³)

1.423 (0.299)

1.249 (0.177)

0.001*