Table 3 Comparison of CT features of non-diffuse PTL and PTC

(n = 100)

(n = 50)

non-contrast CT value (HU)mean

47.30 ± 10.57

45.07 ± 7.19

t’ = 1.514

0.134

Venous phase CT value(HU)mean

111.94 ± 21.44

78.37 ± 19.94

t = 7.638

 < 0.001

non-contrast CT value

 ≤ 50.17

61 (61.0%)

25 (80.6%)

χ² = 4.050

0.044

 > 50.17

39(39.0%)

6 (19.4%)

Venous phase CT value

 ≤ 102.67

29 (29.0%)

27(90.0%)

χ² = 35.019

 < 0.001

 > 102.67

71(71.0%)

3(10.0%)

Enhanced intensity

χ² = 28.449

 < 0.001

Mild to moderate

27 (27.0%)

25 (80.6%)

significant

73 (73.0%)

6 (19.4%)

Homogeneity

χ² = 26.578

 < 0.001

Homogeneous

7(7.0%)

15(45.5%)

Heterogeneous

93(93.0%)

18 (54.5%)

’ is the adjusted t-test value