PET/MRI: Physics, Instrumentation, and Scanners -- Potential Role of Cardiac PET/MRI in Cardiovascular Disease - Initial Experience -- PET/MRI for Cardiac Imaging -- Technical Considerations -- Role of PET and MRI in Assessing Cardiac Sarcoidosis -- Myocardial Viability: Hibernating and Stunning Myocardium - underlying Pathophysiology -- Concepts of SPECT, PET and MRI in the assessment of myocardial viability leading to PET/MRI -- Adding T-1 Mapping and MRI for Myocardial Fibrosis Assessment -- Potential of PET/MRI  in Assessment of Cardiovascular Plaque Burden and Activity -- CT in Assessing Coronary Morphology, Perfusion and Viability -- 3D Fusion Display of CT-Coronary Angiography and Scintigraphic Perfusion Imaging -- 3D Fusion Display of  CT-Coronary Angiography and PET-Determined Myocardial Flow Reserve. Is it the Future? -- Adding CT-measurements of Coronary Artery Calcification to SPECT Perfusion Imaging for Risk Stratification -- Cardiac Risk Stratification in Heart Failure Patients - Combining Assessment of Myocardial Viability with Sympathetic Innervations.