Fig. 1From: Monitoring scanner calibration using the image-derived arterial blood SUV in whole-body FDG-PETExample of aorta ROI delineation (top, PET; bottom, CT). Delineation was performed in the transaxial CT slices and transferred to the PET image volume. Shown are orthogonal slices through the 3D-ROI (magenta line)Back to article page