Left Atrial Size by Planimetry is Superior to M-mode Diameter: Biochemical Calibration by Atrial and Brain Natriuretic Peptide

The current population-based echocardiographic study allows new insight into the value of different measures of LA size. The closer association between natriuretic peptide concentrations and parameters derived from planimetry and volumetry suggests a superiority of these parameters LA diameter. LA volumetry should be included in routine echocardiography for optimized assessment of LA size.