Table 2 Mean results of CT quantitative analysis at different slice thickness-kernel combinations for GE LightSpeed scanner and Siemens Emotion

Total Volume (ml)

EI₉₅₀%^a

V_HYPER %^a

V_NORMAL %^a

V_POOR %^a

V_NON %

Density (HU)^a

Lung Weight (g)^a

1.25 mm

Body

4021 ± 1494

1.0 ± 1.8

12.6 ± 14.3

72.7 ± 15.5

6.9 ± 5.0

7.0 ± 13.0

−721 ± 144

1013 ± 435

5.00 mm

Body

4037 ± 1500

0.3 ± 0.7

8.2 ± 11.8

77.3 ± 15.6

7.2 ± 5.3

6.6 ± 13.2^b

−713 ± 146

1049 ± 464

5.00 mm

Lung

3943 ± 1451^b

4.4 ± 4.3

20.3 ± 16.0

64.6 ± 13.9

7.6 ± 5.2

6.6 ± 11.7

−728 ± 139

961 ± 374

Total Volume (ml)

EI₉₅₀%^a

V_HYPER %^a

V_NORMAL %^a

V_POOR %

V_NON %

Density (HU)^a

Lung Weight (g)^a

2.50 mm

B41s

3224 ± 1264

0.3 ± 0.4

5.0 ± 5.6

73.4 ± 14.8

14.3 ± 11.4

7.0 ± 7.0

−663 ± 136

960 ± 252

2.50 mm

B70s

3203 ± 1276

2.9 ± 2.3

12.0 ± 8.4

66.2 ± 11.6

14.7 ± 11.3

6.6 ± 6.1

−671 ± 130

933 ± 256