New multimodality Appropriate Use Criteria (AUC) released by the ACC, along with key specialty and subspecialty societies, provides guidance on the appropriate use of stress testing and anatomic diagnostic procedures for risk assessment and evaluation of known or suspected chronic coronary disease. The new document, published in JACC, updates previous AUC for radionuclide imaging, stress echocardiography, calcium scoring, coronary computed tomography angiography, stress cardiac magnetic resonance and invasive coronary angiography for patients with stable ischemic heart disease. It includes ratings of appropriate, may be appropriate or rarely appropriate for 64 specific clinical scenarios for both symptomatic patients and asymptomatic patients. Read more.