fig40

Figure 40. Parasternal short-axis views in 2D (A) and color Doppler (B) showing the origin of the main pulmonary artery from the truncus (Tr). The main pulmonary artery (MPA) is short and bifurcates into the right (RPA) and left (LPA) pulmonary arteries. In (B), color Doppler imaging shows non-turbulent flow in both pulmonary arteries. The Tr is in the middle in both (A) & (B). The MPA, RPA and LPA are shown in color in (B). Reproduced from Ref.^[28]. RCA: Right coronary artery; RV: right ventricle.