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. 2021 Dec 22;8:720920. doi: 10.3389/fmed.2021.720920

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Copyright © 2021 Gibot, Conrad, Courte and Cravoisy.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Bland-Altman plots evaluating agreement between PEEP derived from EIT (PEEP_EIT) and positive end-expiratory pressure (PEEP) values derived from lower and higher PEEP/FiO₂ tables and P_L/FiO₂ table. Dotted lines: bias and its 95% confidence interval. Lower right panel: percentages of collapsed and distended lung regions measured by electrical impedance tomography (EIT) under different PEEP settings. Percentage of collapse was lower with PEEP_EIT than with lower PEEP/FiO₂ table (p = 0.04), while percentage of distended areas was reduced as compared to higher PEEP/FiO₂ and P_L/FiO₂ tables (p < 0.01).