Figure 3From: Relationship between B-type natriuretic peptide levels and echocardiographic indices of left ventricular filling pressures in post-cardiac surgery patients Correlation analysis of ln(BNP) vs indexed left atrial volume ( i LAV). Circles represent individual values of brain natriuretic peptide. The black line represents the linear regression curve fit and the dotted lines its 95% confidence interval.Back to article page