Fig. 2From: Prenatal prediction of neonatal haemodynamic adaptation after maternal hyperoxygenationThe pulmonary artery as illustrated in this ultrasound image, arises from the anteriorly positioned right ventricle and courses towards the descending aorta. The ductal arch has a nearly perpendicular shape and resembles a hockey stick. The red arrow represents where the ductus arteriosus Doppler waveform was obtainedBack to article page