[¹⁸
F]Fluorodeoxyglucose, or fluorodeoxyglucose F 18, also commonly called fluorodeoxyglucose and abbreviated [¹⁸
F]FDG, 2-[¹⁸
F]FDG or FDG, is a radiopharmaceutical, specifically a radiotracer, used in the medical imaging modality positron emission tomography. From Wikipedia