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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.
Introduction. An echocardiogram is an ultrasound of the heart. It is very similar to an ultrasound of an unborn baby. The test shows moving images of your heart and takes pictures. This will help your doctor evaluate your heart's health. A technologist uses a gel to slide a microphone-like device over the chest area. This provides a live picture of your heart and valves.