Figure 1
From: 3D Variation in delineation of head and neck organs at risk
Division of the studied OARs in sub regions for studying the regional 3D variations in delineation. (a) Left side- (left), frontal (middle) and rear (right) 3D view of the studied organs at risk (OARs); the parotid and submandibular glands, spinal cord, thyroid cartilage and glottic larynx, divided in sub regions according to the colour legend. (b-f) Transverse central slices of the parotid gland (b), submandibular gland (c), glottic larynx (d), thyroid cartilage (e) and spinal cord (f) showing the division in sub regions according to the colour legend.