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Definition of Echocardiogram
Medically reviewed by Min Clinic Staff | Updated: January 2026
Echocardiogram is a test that uses ultrasound waves to generate images of the heart, including its chambers and valves and the surrounding structures. Echocardiography can measure cardiac output and can identify fluid around the heart, known as a pericardial effusion. An echocardiogram also can reveal abnormal anatomy or infections of the heart valves.