Coronal, sagittal and transaxial PET/CT images of [18
F]FDG (a) and [18
F]FDOPA (b, c) and time-activity curves (d). These are observed in mice bearing orthotopic pancreatic tumours (arrows); (b) and (c) images represent the sum of data collected 2 to 20 min after injection of [18F]FDOPA. Dark blue represents the lowest radioactivity, and red represents the highest radioactivity. Corresponding time-activity curves for (b) and (c) images are shown in (d), where pancreas and tumour signals are corrected with ratio to blood.