Anterior 3D volume-rendered projections of fused PET and CT scans. Mice with subcutaneous AR42J tumor on right flank injected with 18F-IMP466 (A), 18F-IMP466 in the presence of excess of unlabeled IMP466 (B), and 68Ga-IMP466 (C). Arrows indicate tumors. Scans were recorded at 2 h after injection. Reproduced with permission from the Journal of Nuclear Medicine; Laverman et al. .