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

Stress echocardiography will be performed once. Treadmill stress is default. Patients that cannot exercise will receive dobutamine stress with or without atropine. Definity intravenous contrast will be given when needed.

64-detector, resting EKG-gated coronary CT angiography will be performed once. Patients with elevated heart rates will be given oral and/or intravenous metoprolol. Prospective gating with reduced tube current will be default. Retrospective gating with tube current modulation will be used in patients with higher heart rates.