Real time color Doppler of the three vessel view with the settings of flow velocity of the ultrasound equipment very low, so it could show every vessel on this view. (Ao = ascending Aorta, DA = descending aorta, PA = pulmonary artery; LPA = left pulmonary artery). Although limits between pulmonary artery and ascending aorta are not so clear, the ascending aorta is arising in front and to the left of the pulmonary artery. There is a short video that corresponds to this picture.