Figure 1.

Comparison between NICOM™ and Vigileo™. (Left panel) Relationship between averaged values of NICOM™ (in red, r = 0.77, not significant (NS) from identity line) and Vigileo™ (in black, r = 0,69, P < 0.05 from identity line) with PAC-CCO during periods of very stable cardiac output (CO). (Right panel) Corresponding Bland and Altman representation: NICOM™ bias = -0.01 L/min with limits of agreements (2 standard deviations) = 1.68 L/min; Vigileo™ bias = -0.01 L/min with limits of agreements (2 standard deviations) = 1.62 L/min.