Fig. 1

Transthoracic echocardiography distances. Images showing the transthoracic echocardiography distances for a healthy 33 year old male subject in a) and b) apical 4CH view and in c) apical 2CH view. LA = left atrium, LV = left ventricle, LVD = left ventricular diameter, RA = right atrium, RV = right ventricle, RVIT3 = right ventricular inflow tract, RVLAX = right ventricular long axis