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Intensive Care Medicine Experimental
Fig. 6 | Intensive Care Medicine Experimental

Fig. 6

From: Estimating the change in pleural pressure using the change in central venous pressure in various clinical scenarios: a pig model study

Fig. 6

The Bland–Altman analysis of each variable classified by chest wall compliance. The a and b figures show the Bland–Altman analysis for the agreement between the cΔCVP-derived ΔPpl and Δd-Ppl in normal chest wall compliance (a) and low chest wall compliance (b). The c and d figures show the Bland–Altman analysis for the agreement between the ΔPes and Δd-Ppl in normal chest wall compliance (c) and low chest wall compliance (d). Solid lines indicate bias (a: − 0.1 cmH2O; b: − 0.5 cmH2O; c: 0.0 cmH2O; d: 1.0 cmH2O). Broken lines indicate ± 1.96 standard deviation of the bias (a: 3.5 and − 3.7 cmH2O; b: 3.4 and − 4.5 cmH2O; c: 2.0 and − 2.0 cmH2O; d: 5.1 and − 3.0 cmH2O). For comparison, data from the same pigs were marked with the same marker. cΔCVP-derived ΔPpl, ΔPpl calculated using a corrected ΔCVP; Δd-Ppl, change in directly measured pleural pressure; ΔPes, change in esophageal pressure

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