Echocardiogram (Echo)

Using high-frequency sound waves, an echocardiogram measures  the structure of the heart and its ability to perform normal functions.

During the test, a specially-trained technician puts an instrument called a transducer on different areas of the chest. The sound waves emitted from the transducer bounce off the walls of the heart. A computer then records and displays the information as images that help physicians determine the size and thickness of cardiac chambers. Physicians can also evaluate the heart's valve structure, thickness and motion.