Cardiovascular magnetic resonance (CMR) offers a wideranging assessment of ischemic heart disease (IHD), including: Accurate measurement of global and regional myocardial contractile function. Detection of myocardial ischemia with either myocardial perfusion imaging during vasodilator stress (akin to nuclear scintigraphy) or wall motion assessment during inotropic stress (akin to stress echocardiography). Accurate delineation of the extent of myocardial infarction (MI) and residual viability with late gadolinium enhancement (LGE) to inform revascularization decisions. Assessment of contractile reserve during low-dose inotropic stimulation. In acute coronary syndromes, identification of myocardium at risk with T2-weighted imaging as well as delineation of infarcted myocardium and infarct characteristics such as microvascular obstruction (MVO) with LGE. Direct visualization of coronary anomalies and stenoses with coronary MR angiography.