INS and coronary artery disorder: In the attempt to address this issue, we aimed to evaluate the relationship between insulin-stimulated myocardial glucose metabolic rate (MrGlu) using dynamic myocardial positron emission tomography (PET) with 18F-Fluorodeoxyglucose (18F-FDG) combined with euglycemic-hyperinsulinemic clamp, and myocardial MEEi in individuals without history of CHD having different degrees of glucose tolerance.