Segmented spinal cord regions for each group of subjects (Upper–Lower vertebral level limits).

<p>Segmented spinal cord regions for each group of subjects (Upper–Lower vertebral level limits).</p

Cervical spinal cord template and probability tissue map.

<p>(a) Coronal (left), sagittal (middle) and axial views (right) of the cervical spinal cord template through mid-vertebral level from C2 to C7. (b) Probability tissue map. Views are arranged in the same order and orientation as in (a). A, anterior; I, inferior, L, left, P, posterior, R, right; S, superior.</p

Overview of DTbM steps (S).

<p>Slice 1 represents an example of a resampled axial image. Slices 2 and 3 represent the progressive contrast enhancement of slice 1.</p

Accuracy of mean cross-sectional area measured at C2 vertebral level.

<p>Manual segmentation by the experienced operator was the ground truth for accuracy measurements.</p><p>Accuracy of mean cross-sectional area measured at C2 vertebral level.</p

Results of the visual evaluation.

<p>*Asymptomatic syrinx revealed by the visual evaluation.</p><p>Results of the visual evaluation.</p

Criteria and scores for the visual evaluation.

<p>¹Insufficient to moderate overlap in at least 3 vertebral levels.</p><p>²Insufficient to moderate overlap in less than 3 vertebral levels.</p><p>³Global substantial overlap agreement.</p><p>⁴Global perfect overlap agreement.</p><p>Criteria and scores for the visual evaluation.</p