Figure 2
a, b 3-day-old boy with pulmonary atresia and complete absence of native pulmonary arteries. 3D volume rendered image from posterior (a) and coronal subvolume MIP image viewed from anterior (b) show blood supply to right and left lungs via direct APCAs originating from the descending aorta (a, black arrows; b, white arrows) and an indirect APCA (a, white arrow) originating from the right subclavian artery supplying the right upper lobe.