Three vessel and trachea view
The three vessel and trachea view (also known as 3VT view or arrow view) is one of the fetal echocardiography views. In this view, aortic and ductal arches are combined into the DAo and appear as a V-shaped confluence. Both arches tend to be of similar size and are located towards the left of the trachea. The thymus is also seen. On color Doppler interrogation, the flow in both arches should appear in same direction. This view allows to confirm presence of forward flow in three vessels which are, from left to right, pulmonary artery, ductal arch and aorta. All vessels are of approximately same diameter. In this view trachea lies posterior to SVC and both should be on the right side of spine and vessels. This view allows assessment of aortic arch abnormalities (aortic arch hypoplasia and coarctation of the aorta etc).
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