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Fig. 2 | BMC Anesthesiology

Fig. 2

From: The value of arterial pressure waveform cardiac output measurements in the radial and femoral artery in major cardiac surgery patients

Fig. 2

Four Quadrant plot. Four quadrant plots: The serial changes in cardiac output measured with the ProAQT® (∆COp) are plotted against the changes in cardiac output measured by thermodilution (∆COtd). The four quadrant concordance rate, defined as the percentage of the number of data points that fall into 1 of the 2 quadrants of agreement are shown with and without making use of an exclusion zone (0.75 L/min)

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