fig2

Figure 2. This figure demonstrates two-dimensional echo. Parasternal long-axis view of the cardiac structures of a normal child illustrating the left atrium (LA), left ventricle (LV), aorta (Ao), and right ventricle (RV). The mitral valve, aortic valve, and inter-ventricular septum are also shown but not labeled. Reproduced from Ref.^[19].