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A sonogram uses sound waves to supply pictures of your heart. This common check permits your doctor to visualize your heart beating and pumping blood. Your doctor will use the pictures from a sonogram to spot heart condition. Counting on what data your doctor desires, you'll have one in every of many varieties of echocardiograms. Every variety of sonogram involves few, if any, risks. If your lungs or ribs block the read, you would like little quantity of AN enhancing agent injected through a blood vessel (IV) line. The enhancing agent, that is usually safe and well tolerated, can create your heart's structures show up additional clearly on a monitor. Sound waves amendment pitch after they bounce off blood cells moving through your heart and blood vessels. These changes (Doppler signals) will facilitate your doctor live the speed and direction of the blood flow in your heart. Christian Johann Doppler techniques area unit usually employed in transthoracic and transesophageal echocardiograms. Christian Johann Doppler techniques also can be wont to check blood flow issues and pressure within the arteries of your heart that ancient ultrasound won't sight.