Representative B-mode and M-mode echocardiographic images and measurements. (A) Parasternal long axis view of left ventricle (LV) in B-mode. (B) Aortic arch view in B-mode. (C) Short axis view in 2D (left panel) and M-mode tracing (right panel) of the LV, at the level of papillary muscle. (D) Right parasternal long axis view in 2D (left panel) and M-mode tracing (right panel) of the righ ventricle (RV). LVEndoL = Left ventricle endocardial length. AoD = Ascending aorta diameter. LVAW = Left ventricle anterior wall. LVID = Left ventricle internal diameter. LVPW = Left ventricle posterior wall. RVAW = Right ventricle anterior wall. RVID = Right ventricle internal diameter; -d = In diastole. -s = In systole.