Fig. 2. Bland-Altman plot of cardiac output measurements from bolus thermodilution (BCO) and NICO (left ) and from BCO and continuous thermodilution (CCO) (right ). Filled circle = after anesthetic induction (Postinduction); open circle = during aortic cross-clamping (XC); filled box = at reperfusion of unilateral iliac artery (Declamp); open box = during peritoneal closure (Endop). n = 28 measurements in each stage; total = 112 measurements. Results show that NICO has a tendency to underestimate BCO, whereas CCO has a tendency to overestimate BCO.