Table 3 Intra-observer and inter-observer bias for computed tomography measurements
Variables | Intra-observer bias | Inter-observer bias (human–human) | Inter-observer bias (human–ML) |
|---|---|---|---|
Alveolar recruitment PEEP5–15—% lung weight | − 0.4 [− 1.5–0.7] | − 0.3 [− 2.1–1.5] | − 0.3 [− 2.1–1.6] |
Lung weight at PEEP 5—g | − 41 [− 70 to − 12] | 85 [48–122] | 34 [− 28–97] |
Lung weight at PEEP 15—g | − 30 [− 60 to − 1] | 89 [53–126] | 29 [− 34–91] |
Non-aerated lung at PEEP 5—% lung weight | − 0.7 [− 1.8–0.2] | 1.0 [− 0.4–2.4] | 0.7 [− 1.6–3.0] |
Non-aerated lung at PEEP 15—% lung weight | − 0.4 [− 1.6–0.7] | 1.3 [0.2–2.3] | 1.0 [− 1.8–3.7] |
Tidal hyperinflation—mL.kg−1 PBW | 0.00 [− 0.01–0.01] | 0.01 [0.00–0.02] | 0.03 [− 0.04–0.09] |
Tidal recruitment—% lung weight | 0.6 [− 1.0–2.2] | -0.5 [− 2.4–1.3] | − 0.8 [− 2.3–0.8] |
End-expiratory lung volume at PEEP 5—mL | − 1 [− 4–2] | 7 [4–10] | 4 [− 4–11] |
End-expiratory lung volume at PEEP 15—mL | 0 [6–7] | 9 [5–13] | 6 [− 7–19] |
Hyperinflation at PEEP 5—mL.kg−1 PBW | 0.00 [− 0.01–0.01] | 0.01 [0.00–0.03] | 0.01 [− 0.01–0.03] |
Hyperinflation at PEEP 15—mL.kg−1 PBW | 0.00 [− 0.02–0.01] | 0.02 [0.00–0.04] | 0.03 [− 0.03–0.10] |