Table 3 Limits of variable bias due to inspiration between dCT and whole-lung means

CT density (HU)

− 51 (26)

− 12 (24)

39.08 [11.35 to 66.8]

< 0.001

FV-soft tissue (%)

− 1.7 (3.4)

− 0.7 (2.7)

0.99 [− 1.48 to 3.45]

0.013

FV-gas (%)

6.1 (2.4)

2.4 (2.2)

− 3.66 [− 6.23 to − 1.1]

< 0.001

FV-iodinated blood (%)

− 4.4 (2.9)

− 1.7 (2.3)

2.67 [0.61 to 4.73]

< 0.001

FV-atelectasis (%)

4.1 (3.2)

− 1.4 (2.5)

2.67 [0.00 to 5.33]

< 0.001

FV-poorly aerated (%)

− 6.4 (3.5)

− 2.3 (2.9)

4.05 [− 0.68 to 8.79]

< 0.001

FV-normally aerated (%)

11.1 (4.4)

4.2 (3.8)

− 6.92 [− 12.11 to − 1.72]

< 0.001

FV-overdistended (%)

− 0.7 (0.2)

− 0.5 (0.3)

0.19 [− 0.29 to 0.68]

< 0.001