Figure 4
From: 3D Variation in delineation of head and neck organs at risk
3D delineation variation of a spinal cord, a right parotid and submandibular gland. 3D Standard Deviations (SDs) for a typical patient plotted in colour scale on the median contour surface of the organ. Note the different scalings. Spinal cord (a), right parotid gland (b) and right submandibular gland (c), frontal view.