Figure 1. Rendering of the 3D geometry of cervical SSS in the healthy subject containing idealized nerve roots and fine structures.

The dimensions of these structures are based on anatomical measurements in Table 1. Meshwork delineates the dural surface and the top portion is transparent to better visualize the anatomy. Inset represents the extracted dimension from the medical literature (θ = median descending angle, t = nerve root thickness, RL = radicular line length).