fig50

Figure 50. Echo images from apical four-chamber projections illustrating a dilated left atrium (LA) and left ventricle (LV). The images are recorded with open (MVO) and closed (MVC) mitral valve leaflets respectively, depicted in (A) and (B). However, this appearance of dilated LA and LV is very subjective. The right atrium (RA) and right ventricle (RV) are marked. Reproduced from Ref.^[36].