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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.
Echocardiogram. Guide. An echocardiogram (also called an echo) is a type of ultrasound test that uses high-pitched sound waves that are sent through a device called a transducer. The device picks up echoes of the sound waves as they bounce off the different parts of your heart.ransthoracic echocardiogram (TTE). This test is done to: 1  Look for the cause of abnormal heart sounds (murmurs or clicks), an enlarged heart, unexplained chest pain or pressure, shortness of breath, or irregular heartbeats. 2  Check the thickness and movement of the heart wall.