fig9

Figure 9. Echo frames from apical four-chamber (A) and apical five-chamber (B) views of the heart demonstrating the left atrium (LA), left ventricle (LV), right atrium (RA), and right ventricle (RV), mitral valve (MV) and tricuspid valve (TV) (arrows) in (A) and in addition, LV outflow tract, aortic valve (AV, arrow), and aorta (Ao) in (B). Atrial and ventricular septae (not marked) are also shown. Reproduced from Ref.^[19].