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Table 2 Mean CT value of pGGO, PSN and SN between enhancement and non-enhancement CT scan

From: Solid component proportion is an important predictor of tumor invasiveness in clinical stage T1N0M0 (cT1N0M0) lung adenocarcinoma

Tumor appearance

Number (%)

Mean CT value (HU)

t

P

pGGO

58

− 553.38 ± 101.1

  

Enhancement

33 (56.9)

−533.36 ± 103.79

−1.764

0.083

 Non-enhancement

25 (43.1)

− 579.80 ± 92.92

PSN/mGGO

159

−364.87 ± 129.61

 Enhancement

94 (59.1)

− 379.49 ± 128.80

1.721

0.087

 Non-enhancement

65 (40.9)

− 343.74 ± 128.82

SN

158

−104.24 ± 93.05

 Enhancement

55 (34.8)

−95.67 ± 94.30

−0.845

0.399

 Non-enhancement

103 (65.2)

− 108.82 ± 92.51

  1. CT, computer tomogram; pGGO, pure ground-glass opacity; PSN, part solid nodule; mGGO, mixed ground-glass opacity; SN, solid nodule; HU, hounsfield unit