Figure 1. Physiologic myocardium FDG uptake and detection of inflammatory lesions on FDG-PET. Schematic figures detecting physiologic glucose uptake in normal myocardium (A) and suppression of glucose uptake by dietary preparations, prolonged fasting, and unfractionated heparin administration (B). (C) Appropriate preparation for myocardial FDG-PET can suppress physiologic glucose uptake in cardiomyocytes while maintaining glucose uptake of inflammatory cells in the myocardium with sarcoidosis involvement. FDG: fluorodeoxyglucose, FDG6P: fluorodeoxyglucose-6-phosphate, FFA: free fatty acid, G6P: glucose-6-phosphate, GLUT: glucose transporter, PET: positron emission tomography, TCA: tricarboxylic acid.
