Figure 2From: The estimation of cardiac output by the Nexfin device is of poor reliability for tracking the effects of a fluid challengeBland-Altman plot for the absolute values of cardiac index obtained from the Nexfin device (CI noninv ) and from transpulmonary thermodilution (CI inv ) considering all the pairs of measurements performed during the study. N = 72; straight line, bias; dashed line, +2D/-2SD limits of agreement.Back to article page