Echocardiography is a type of ultrasound test that uses high-pitched sound waves to produce an image of the heart. Sound waves are sent through a device called a transducer, and reflected of the various structures of the heart. These echoes are then converted into pictures of the heart than can be seen on a monitor.

An echocardiogram is used to evaluate how well heart chambers fill with blood and pump blood to the rest of the body. Echocardiography can also be used to evaluate heart size, valve function and to estimate the amount of blood pumped with each heartbeat. With an echocardiography, doctors can help identify areas of poor blood flow in the heart, areas of heart muscle that are not contracting normally, previous injury to the heart muscle caused by impaired blood flow, or evidence of heart failure