Echocardiography uses ultrasound waves to produce an image of the heart to see how it is functioning. Depending on the type of echocardiography test used, doctors can learn about the size, shape, and movement of the heart muscle. Some tests are made while the body is at rest, while the stress echocardiogram, or Stress Echo, tests a body in motion.
An echocardiogram can also show how the heart valves are working and how blood is flowing through the heart. Echocardiography also gives doctors information about the arteries working condition.