Figure 3. Series with tip transducer. (A) The correlation diagram of single measurements Q'^tdand the averaged value of four measurements performed at four instants equally distributed over the ventilatory cycle Q'^td,means4. Line of identity is given. (B) Scatter diagram plotting the difference between single estimates and the mean of the four phase controlled estimates versus their mean. The level of plus/minus 2 SD is also indicated in the figure. (C) Correlation diagram of thermodilution estimates corrected by pulse contour Q'^tdcand the averaged value of four measurements Q'^td,mean4. Line of identity is given. (D) Scatter diagram plotting the difference between estimates corrected by pulse contour and the mean of the four phase controlled estimates versus their mean. The level of plus/minus 2 SD also is indicated in the figure.