Figure 2. (Left) Simultaneous bolus thermodilution and model simulated cardiac output on the first day before calibration of the model (n = 32). Solid line = line of identity; TDCO = bolus thermodilution cardiac output; MCO = model-simulated cardiac output. (Right) Differences between simultaneous TDCO and MCO plotted against their mean (n = 32) on the first day before calibration. Horizontal lines = mean +/- 1.96 SD.