Stress Echocardiography and Heart Computed Tomography (CT) Scan in Emergency Department Patients With Chest Pain

Inclusion Criteria: * Presentation to the Emergency Department with chest pain * Low-to-intermediate risk of coronary disease per Diamond-Forrester criteria * Free of known coronary artery disease Exclusion Criteria: * Inability to undergo both stress echo or coronary CT for any reason * Contraindication to intravenous iodinated contrast * Dysrhythmia precluding EKG gating * Heart rate greater than 60 with contraindication to beta blockers * Administration of beta blockers within the last 12 hours * Known severe cardiac valvular disease or pulmonary hypertension * Stress echocardiography, coronary CT or catheterization within the last 6 months