Fig. 3From: A method for calculating left ventricular end-diastolic volume as an index of left ventricular preload from the pre-ejection period, ejection time, blood pressure, and stroke volume: a prospective, observational studyA Correlation between EDV echo and EDV calc. The correlation between EDV echo and EDV calc is significant (R2 = 0.81, p < 0.01). B Bland–Altman plot between EDV echo and EDV calc. The bias ± standard deviation is –11.2 ± 12.7 mlBack to article page