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Fig. 4 | Critical Care

Fig. 4

From: Assessment of dead-space ventilation in patients with acute respiratory distress syndrome: a prospective observational study

Fig. 4

Agreement between different techniques to calculate the dead-space fraction. Bland-Altman plots comparing dead space fraction (VD/VT) calculated by measurements from Enghoff-Douglas bag (Enghoff-DBag) vs. Bohr volumetric capnography (Bohr-VCap) and Enghoff-indirect calorimetry (Enghoff-InCal) in post-cardiac surgery patients (a and b) and patients with acute respiratory distress syndrome (ARDS) (c and d). Dotted lines represent 95 % limits of agreement, and dashed lines represent mean bias

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