<prompt> Answer this question truthfullyWhat role does echocardiography play in cases of ST-elevation myocardial infarction?  <response>: <reason> Echocardiography is an appropriate test for the complications of MI, including: Cardiac tamponade Free wall rupture Left ventricular aneurysm Left ventricular pseudoaneurysm Left ventricular thrombus Mitral regurgitation Pericardial effusion Right ventricular involvement Shock Ventricular septal defect 