In this test, sound waves directed at your heart from a wand-like device (transducer) held on your chest produce video images of your heart in motion.
This test assesses the structure of your heart, the heart valves and the blood flow through your heart. An echocardiogram helps your doctor get a close look at the heart valves and how well they're working. Doctors may also use a 3-D echocardiogram.
Doctors may conduct another type of echocardiogram called a transesophageal echocardiogram. In this test, a small transducer attached to the end of a tube is inserted down the tube leading from your mouth to your stomach (esophagus).
This test allows doctors to have a closer look at the heart valves than is possible with a regular echocardiogram.