18F-sodium fluoride PET/CT images of the aortic arch. (A) CT image; (B) PET image; (C) fused PET/CT image. 18F-sodium fluoride uptake in this atherosclerotic lesion coincided with calcification on CT imaging (arrows). Reproduced from “Feasibility of 18F-sodium fluoride PET/CT for imaging of atherosclerotic plaque.” Derlin T, Richter U, Bannas P, et al. J Nucl Med 2010;51:862-5. © by the Society of Nuclear Medicine and Molecular Imaging, Inc. PET, positron emission tomography; CT, computed tomography.