Figure 4From: Analysis of carotid artery deformation in different head and neck positions for maxillofacial catheter navigation in advanced oral cancer treatment The position parameters of surrounding bones (Δx´, Δy´, Δz´). The parameters (Δx´, Δy´, Δz´) were the results when the position parameters (Δx, Δy, Δz) of bones (C1–C4 and mandible) were transformed to the parameters in the standardized coordinate system. X axes define the parameters of each bone segment. Y axes define the translation of surrounding bones in the standardized coordinate system. Patients 1–6 correspond to graphs (a)–(f) in Figures 4, 5, 6. Values are in mm.Back to article page