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

From: Diffusion tensor imaging for assessment of microstructural changes associate with treatment outcome at one-year after radiofrequency Rhizotomy in trigeminal neuralgia

  Pre-rhizotomy (SD) Post-rhizotomy (SD) P value
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*
  1. *P < 0.05 was considered to indicate a significant difference