Radiographic features | Invasive adenocarcinoma | Non-invasive adenocarcinoma | χ2/t | P |
---|---|---|---|---|
HRCT | 283 (n) | 92 (n) | ||
Sizea | 2.04±0.55 | 1.55 ± 0.51 | −7.601 | < 0.001 |
Location | 0.295 | 0.587 | ||
Centre | 50 | 14 | ||
Periphery | 233 | 78 | ||
Contour | 48.04 | < 0.001 | ||
Smooth | 36 | 40 | ||
Lobular | 143 | 42 | ||
Spiculated | 104 | 10 | ||
Necrosis | 9.415 | 0.002 | ||
Yes | 33 | 1 | ||
No | 250 | 91 | ||
Vacuole sign or cyst/cavity | 16.346 | < 0.001 | ||
No | 172 | 77 | ||
Vacuole sign | 89 | 12 | ||
Cyst/cavity | 22 | 3 | ||
Computer-quantified CT number analysis | 283 (n) | 92 (n) | ||
GGOc proportiona | (14 ± 17) % | (44 ± 29) % | 9.461 | < 0.001 |
Sc proportiona | (56 ± 30) % | (14 ± 21) % | −14.822 | < 0.001 |
PET/CT | 137 (n) | 10 (n) | ||
SUVmaxa | 3.75 ± 2.85 | 1.54 ± 2.41 | −2.21 | 0.018 |