Adult Echocardiogram or echogram uses sound waves to produces live images of the heart. It is also known as 'Ultrasound' of the heart and is used for determining the health of a heart especially after a heart attack. It is a safe (including pregnant patients) study and can be performed on an outpatient basis.This test allows your doctor to monitor how your heart and its valves are functioning. It can also reveal heart defects in unborn babies and thus, is one of the most common test.