Right ventricular injection shows direct connection of right ventricle and aorta. The prominent trabeculation indicates the right ventricle has been injected. Opacification of pulmonary arteries is present, indicating a connection between the arterial and pulmonary circulations.
More dense contrast is present in the pulmonary artery, indicating a patent ductus arteriosus.
Note the anterior position of the takeoff of the aorta. Normally, the pulmonary artery is anterior.