Diffusion tensor MRI-based tractography in evaluation of nerve root function ( Neural Regeneration Research ) If bulging or protruding intervertebral discs occupies the intervertebral foramen, and nerve roots are compressed. The cross-sectional area of nerve root fibers is reduced, fiber bundles gathered together and interrupted at the affected side, with no branching.
Jan. 2, 2014 - EurekAlert!