Important aspects of ischemic heart disease are currently evaluated with magnetic resonance imaging and phosphorus-31 spectroscopy. The combined use of magnetic resonance imaging and spectroscopy will enable the noninvasive visualization of the coronary arteries, provide flow velocity and volume data in the coronary circulation, assess the functional significance of coronary artery stenoses more completely by demonstrating myocardial perfusion and high-energy phosphate metabolism, and provide measurements of postinfarction prognostic indicators, such as infarct size and global left ventricular function, in one comprehensive examination.