Fig 1. Diagram of the cervical spinal cord in cross-section (A) showing regions of interest (ROIs) placed for the measurement of fractional anisotropy (FA) and mean diffusivity in the anterior, lateral, and posterior spinal cord, bilaterally.

B, Color FA map obtained in control patient at the C2-C3 level.

C, The corresponding black and white FA map is shown with ROIs placed, including a central region of interest. Values have been scaled by a factor of 1000.