fig8
Figure 8. Echo frames from parasternal short-axis view of the heart at the level of papillary muscles (arrows) (A) and at the level of the aortic valve (B). (A) The left ventricle (LV) is visualized posteriorly and the right ventricle (RV) is seen anteriorly. (B) The aorta (Ao) is in the middle with the left atrium (LA) behind it and the RV in front of it. P: Pulmonary valve; PA: pulmonary artery; RA: right atrium; T: tricuspid valve. Reproduced from Ref.[19].