Cardiac imaging is an essential tool in assessing the function of the heart including the perfusion of the myocardium and dysfunctional wall motion, ventricular ejection fraction, and cardiac valve function. This chapter discusses several different imaging modalities that are employed for the assessment of the heart. Cardiovascular Magnetic Resonance imaging (CMR) has been increasingly used in the evaluation of cardiovascular diseases and for monitoring treatment. CMR is the gold standard imaging modality for the quantitative assessment of the right and left ventricular (LV) volume and ejection fraction using steady‐state free precision (SSFP) cine imaging. Echocardiography is a widely available inexpensive imaging test central to the diagnosis and treatment of cardiac pathology. Nuclear cardiology imaging studies provide useful clinical information on blood flow to the heart (myocardial perfusion), function of the heart, and motion of the heart walls. Also, nuclear medicine studies help to assess if the heart muscle is viable.