α4β2-nA. Ch. R PET/CT scan showing [18F]-2-fluoro-A85380 uptake in the right and left common carotid arteries (upper ROIs green) and in the right and left jugular veins (lower ROIs). On a visual basis, the fused PET/CT image shows higher uptake of the tracer in the two common carotids compared with the two veins, indicating a specific tracer uptake in the arteries. Furthermore, the right common carotid artery shows a higher uptake (SUVmax 1.7 vs. SUVmax 1.2 in the left common carotid artery) compared with the left common carotid artery, whereas the uptake in the two jugular veins is almost identical (right SUVmean 1.0 vs. left SUVmean 1.1), further indicating a specific arterial uptake of the PET tracer as well as a higher density of the α4β2-nA. Ch. Rs in the right than in the left common carotid artery