Table 4 Repeatability and reproducibility coefficients for computed tomography measurements
Variables | Intra-observer RC | Inter-observer RDC (human–human) | Inter-observer RDC (human–ML) |
|---|---|---|---|
Alveolar recruitment PEEP5–15—% lung weight | 3.5 [2.4–5.2] | 5.7 [4.0–8.0] | 5.9 [4.3–7.8] |
Lung weight at PEEP 5—g | 121 [78–181] | 202 [146–300] | 207 [139–270] |
Lung weight at PEEP 15—g | 111 [79–189] | 209 [152–278] | 203 [143–274] |
Non-aerated lung at PEEP 5—% lung weight | 3.5 [2.6–4.5] | 4.7 [3.7–6.3] | 7.4 [5.3–10.3] |
Non-aerated lung at PEEP 15—% lung weight | 3.6 [1.9–6.4] | 4.2 [2.0–6.9] | 8.8 [5.0–12.9] |
Tidal hyperinflation—mL.kg−1 PBW | 0.02 [0.01–0.03] | 0.03 [0.02–0.04] | 0.2 [0.01–0.45] |
Tidal recruitment—% lung weight | 4.9 [2.7–8.8] | 5.6 [3.7–8.2] | 4.8 [2.9–6.9] |
End-expiratory lung volume at PEEP 5—mL | 10 [7–15] | 17 [11–26] | 24 [7–51] |
End-expiratory lung volume at PEEP 15—mL | 21 [7–43] | 22 [14–34] | 41 [9–91] |
Hyperinflation at PEEP 5—mL.kg−1 PBW | 0.03 [0.02–0.04] | 0.05 [0.02–0.09] | 0.06 [0.01–0.14] |
Hyperinflation at PEEP 15—mL.kg−1 PBW | 0.04 [0.02–0.07] | 0.08 [0.03–0.13] | 0.22 [0.01–0.50] |