what is echogram test
An echocardiogram (echo) is a test that uses high frequency sound waves (ultrasound) to make pictures of your heart.The test is also called echocardiography or diagnostic cardiac ultrasound. Quick facts.1  An echo uses sound waves to create pictures of your heartâs chambers, valves, walls and the blood vessels (aorta, arteries, veins) attached to your heart. 2  A probe called a transducer is passed over your chest.uick facts. 1  An echo uses sound waves to create pictures of your heartâs chambers, valves, walls and the blood vessels (aorta, arteries, veins) attached to your heart. 2  A probe called a transducer is passed over your chest.