Fig. 4.

Comparison of spinal cord volumes between patients without any spinal cord lesion, patients with most spinal cord lesion volumes, and healthy controls. Mean spinal cord cross-sectional areas and standard error on the y axis are plotted across vertebral levels on the x axis (C, cervical; T, thoracic; L, lumbar), separately for the 99 patients without a single spinal cord lesion, the 99 patients with the highest spinal cord lesion volumes, and the 17 healthy controls. Statistical significance is indicated by non-overlapping confidence intervals.