Table 3 Electrical impedance tomography and computed tomography findings
EIT findings | 30:2 group | CCC group | p value |
|---|---|---|---|
Median (IQR) n = 16 | Median (IQR) n = 15 | ||
Tidal volume distribution, baseline | 0.89 (0.83–0.96) | 0.94 (0.80–1.1)* | 0.40 |
Tidal impedance change, 25 min (%) | 97 (81–115) | 100 (90–116) | 0.65 |
Tidal volume distribution, 25 min | 0.92 (0.74–1.0) | 0.80 (0.70–0.87) | 0.11 |
Tidal impedance change, 30 min (%)* | 133 (109–163) | 155 (129–172) | 0.42 |
Tidal volume distribution, 30 min* | 0.73 (0.64–0.87) | 0.67 (0.58–0.78)* | 0.34 |
Tidal impedance change, 35 min (%) | 92 (84–123) | 102 (86–117) | 0.83 |
Tidal volume distribution, 35 min | 0.93 (0.74–0.98) | 0.78 (0.75–0.89) | 0.19 |
CT findings after death | n = 16/15# | n = 14/9# | |
|---|---|---|---|
Total lung volume (ml) | 1228 (1002–1447) | 1336 (836–1643) | 0.89 |
Rib fractures (#) | 5 (4–5) | 5 (4–6) | 0.15 |
Mean density (HU) | − 652 (− 588 to − 695) | − 688 (− 589 to − 763) | 0.31 |
Ventral lung density (HU) | − 741 (− 678 to − 781) | − 744 (− 719 to − 833) | 0.57 |
Middle lung density (HU) | − 702 (639 to − 751) | − 728 (− 640 to − 799) | 0.50 |
Dorsal lung density (HU) | − 654 (− 542 to − 668) | − 662 (− 532 to − 755) | 0.43 |
Pneumothoraces (mild/moderate/marked) | 2/0/0 | 6/2/2 | 0.04 |
No pneumothorax | 14 | 6 |