fig24

Figure 24. (A) Selected video frame from parasternal long-axis views of a baby with tricuspid atresia and transposition of the great arteries demonstrating left atrium (LA), left ventricle (LV), a very small right ventricle (RV), and a moderate-sized ventricular septal defect (not marked). The vessel coming off of the LV shown in A is traced in (B) and demonstrated to bifurcate into left (LPA) and right (RPA) pulmonary arteries, confirming that this vessel is the main pulmonary artery (MPA). Reproduced from Ref.^[19]. Ao: Aorta.