Ann Pediatr Card Close
 

Figure 1: (d) Normal pulmonary artery. The main pulmonary artery (MPA) arises anteriorly from the right ventricle (RV) and passes directly posterior toward the fetal spine. Thus, its orientation is completely different from the aorta as it leaves the heart. This “crossing” pattern of the normally related great arteries is an important feature for the sonographer to note during examination of the outflow tracts

Figure 1: (d) Normal pulmonary artery. The main pulmonary artery (MPA) arises anteriorly from the right ventricle (RV) and passes directly posterior toward the fetal spine. Thus, its orientation is completely different from the aorta as it leaves the heart. This “crossing” pattern of the normally related great arteries is an important feature for the sonographer to note during examination of the outflow tracts