Stress imaging includes stress nuclear, stress echocardiography, and stress cardiac magnetic resonance imaging. Number of vessels diseased is shown based on the threshold of 50% stenosis. Frequency of angina is determined based on the Seattle Angina Questionnaire angina frequency scale, where 100 indicates no angina; 61 to 99, monthly angina; 31 to 60, weekly angina; and 0 to 30, daily angina. ETT indicates exercise tolerance test.