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Figure 4 | Critical Care

Figure 4

From: Accuracy and precision of end-expiratory lung-volume measurements by automated nitrogen washout/washin technique in patients with acute respiratory distress syndrome

Figure 4

ΔEELV and ΔPEEP-volume correlation. (a) Correlation between ΔEELV and ΔPEEP-volume in all patients (r2 = 0.47). Straight line is correlation: ΔEELV = 62.4 + 0.7 ΔPEEP-volume. (b) Relation between the minimal predicted increase in lung volume and ΔEELV. Red dots: patients in whom measurement errors were detected; dashed line, identity. (c) Correlation between ΔEELV and ΔPEEP-volume after exclusion of the four patients with obvious ΔEELV measurement errors (r2 = 0.80). Straight line is correlation: ΔEELV = -42.1 + 1.0 ΔPEEP-volume.

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Critical Care

ISSN: 1364-8535