Fig. 3
From: Diffusion tensor imaging in trigeminal neuralgia: beyond the normal morphology
A 53-year-old female patient presented with right TN for 2 years. VAS was 6. A Axial T2 WI showing normal appearing right trigeminal nerve B Axial T2 WI showing the normal appearing left trigeminal nerve and C Axial T2 WI at a lower level showing a small vascular loop crossing the REZ of the right trigeminal nerve (arrow). D Axial colour-coded FA map overlaid on axial T2 images showing reduced FA value of the right trigeminal nerve (0.3) compared to the contralateral normal side (0.56) E 3D fibre tractography of both trigeminal nerves showing normal and comparable 3D tractography appearance of both nerves