Figure 3From: Arterial pressure-based cardiac output in septic patients: different accuracy of pulse contour and uncalibrated pressure waveform devicesBland-Altman plots. (a, b) Bland-Altman plot for the changes (in absolute values) and correlation (for the percentage changes) induced by the introduction/increase in norepinephrine on cardiac index obtained by transpulmonary thermodilution (CItd) and cardiac index obtained by the pulse-contour analysis (CIpc). (c, d) Bland-Altman plot for the changes (in absolute values) and correlation (for the percentage changes) induced by the introduction/increase in norepinephrine on cardiac index obtained by transpulmonary thermodilution (CItd) and cardiac index obtained by the arterial-pressure waveform analysis (CIpw). Plots: straight line, bias; dashed line: +2SD/-2SD limits of agreement); dashed line, correlation line.Back to article page