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Echocardiogram, often referred to as a cardiac echo or simply an echo, is a sonogram of the heart. (It is not abbreviated as ECG, an abbreviation for an electrocardiogram .) Echocardiography uses standard two-dimensional, three-dimensional, and Doppler ultrasound to create images of the heart.
An echocardiogram is a test that uses sound waves to take a picture of your child's heart. An echocardiogram is also called an echo. This test does not hurt and is completely safe. You will probably be able to stay with your child during the test.