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Figure 2: BlandAltman plot analysis. In each plot, the red horizontal line represents the mean difference of the measurements of invasive arterial measurement and noninvasive measurement using ClearSight ™. The two green horizontal lines represent the Limit of Agreement (1.96 x SD). (a)BlandAltman plot, MAPmean (calculated from (MAP invasive + MAP ClearSight)/2) vs. MAPdif (MAP invasive  MAP ClearSight), (b) BlandAltmanPlot, SYSmean (calculated from (SYS invasive + SYS ClearSight)/2) vs. SYSdif (SYS invasive  SYS ClearSight), (c) BlandAltmanPlot, DIAmean (calculated from (DIA invasive + DIA ClearSight)/2) vs. DIAdif (DIA invasive  DIA ClearSight), (d) BlandAltmanPlot, PRmean (calculated from (PR invasive + PR ClearSight)/2) vs. PRdif (PR invasive  PR ClearSight) 
