2D Echo is a test for the heart, in which ultrasound technique is used to take heart pictures. It displays the beating heart, chambers, valves and the major blood vessels of the heart. This test is used to “see” the actual motion of the heart structures. A 2-D echo view appears cone-shaped on the monitor, and the real-time motion of the heart’s structures can be observed. This enables the doctor to see the various heart structures at work and evaluate them.