Figure 1: Localization of the dorsogluteal site (a-c). Method by which injection site is localized is clinically is shown in (a). Corresponding scanogram localization is shown in (b) (*in Figure b). Using 3D localization software, site of injection is identified in axial sections (c) and subcutaneous fat thickness measured (double arrow). Localization of the dorsogluteal site (d-f): Method by which injection site is localized clinically is shown in (d). Corresponding scanogram localization is shown in (e) (*in Figure e). Using 3D localization software, site of injection is identified in axial sections (f) and subcutenous fat thickness measured (double arrow)