The measurement of LA volume is highly feasible and
reliable in most echocardiographic studies, with the
most accurate measurements obtained using the apical
4-chamber and 2-chamber views.10 This assessment is clinically
important, because there is a significant relation
between LA remodeling and echocardiographic indices of
diastolic function.11 However, Doppler velocities and time
intervals reflect filling pressures at the time of measurement,
whereas LA volume often reflects the cumulative
effects of filling pressures over time.