Characteristics of Lung Injury, Ventilatory Settings, and PET Measurements in Experimental Groups
| Characteristic | Low-PEEP group in SP (n = 9) | High-PEEP group in SP (n = 8) | Low-PEEP group in PP (n = 9) | VILI group with HCl (n = 6) | VILI group without HCl (n = 6) | Control group (n = 6) |
| HCl-induced ALI | Yes | Yes | Yes | Yes | No | No |
| Protective ventilation | Yes | Yes | Yes | No | No | Yes |
| VT (mL⋅kg−1) | 9 ± 1 (7–11) | 7 ± 1 (5–8) | 10 ± 1 (8–10) | 31 ± 10 (17–44) | 57 ± 10 (42–71) | 10 ± 0 (10–10) |
| PEEP (cm of H2O) | 5 ± 3 (2–10) | 12 ± 1 (11–15) | 6 ± 3 (2–10) | 0 ± 0 (0–0) | 0 ± 0 (0–0) | 3 ± 0 (3–3) |
| Pplat,rs (cm of H2O) | 27 ± 3 (22–32) | 27 ± 1 (26–29) | 25 ± 4 (20–33) | 53 ± 9 (43–66) | 48 ± 3 (45–52) | 16 ± 4 (12–22) |
| FB (mL of blood⋅100 mL of lung−1)* | 5 ± 3 (0–14) | 4 ± 3 (0–10) | 5 ± 2 (1–9) | 3 ± 2 (0–9) | 6 ± 5 (0–25) | 7 ± 4 (2–15) |
| PBF (mL⋅min−1⋅100 mL of lung−1)† | 134 ± 98 (8–403) | 134 ± 113 (6–537) | 140 ± 64 (31–290) | 99 ± 64 (12–254) | 219 ± 170 (12–723) | 263 ± 169 (24–603) |