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reciprocal beat a heartbeat resulting from an atrial or ventricular complex caused by a return of an impulse to its chamber of origin; called also echo beat. sinus beat a heartbeat with sinus rhythm. ventricular beat an ectopic beat originating in a ventricle.
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 heartâs 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. If there is a tumor or infectious growth around your heart valves. 2  Problems with the outer lining of your heart (the pericardium). 3  Problems with the large blood vessels that enter and leave the heart. 4  Blood clots in the chambers of your heart. 5  Abnormal holes between the chambers of the heart. 6  An echo canât harm you.