FDG-PET Showing Stunned Myocardium

Decreased myocardial perfusion of the interventricular septum (green arrows), inferior (red arrows) and apical (blue arrow) walls at rest (left) in the setting of intact fluorine-18–labeled deoxyglucose (FDG) uptake on viability PET-CT scan (right). This is consistent with hibernating myocardium (yellow arrow), which is currently underperfused and has reduced metabolic demand to match supply but is viable and may recover over time.