CT value (HU)

Tube voltage

100 kV

120 kV

140 kV

Contrast medium

−

+

+/−

−

+

+/−

−

+

+/−

Normal (n = 43)

29.4 ± 12.5

33.2 ± 12.9

1.13

28.2 ± 11.4

31.4 ± 12.4

1.11

26.7 ± 10.7

29.2 ± 12.3

1.09

Tumor (n = 43)

42.3 ± 10.8*

99.8 ± 27.6*

2.36

41.0 ±9.81*

84.0 ± 20.7*

2.05

39.1 ± 9.16*

67.3 ± 14.9*

1.72

Tumor/Normal

1.44

3.01

1.45

2.68

1.46

2.30