Table 2. HRCT and PET/CT manifestations of different differentiations.
| Tumor Characteristic | Moderate differentiation (60) | Poor differentiation (28) | P Value | ||
|---|---|---|---|---|---|
| Acinar (48) | Papillary (12) | Micropapillary (11) | Solid (17) | ||
| Nodule diameter (cm) | 2.6 ± 1.3 | 2.2 ± 0.7 | 2.6 ± 0.6 | 2.8 ± 1.4 | 0.308 |
| CT value (HU) | 27.9 ± 9.2 | 28.7 ± 9.4 | 31.0 ± 7.0 | 31.3 ± 5.9 | 0.122 |
| Radiological characteristics | |||||
| Lobulation N (%) | 41(85.4) | 10(83.3) | 7(63.4) | 16(94.1) | 0.977 |
| Spiculation N (%) | 29(60.4) | 9(75.0) | 9(81.8) | 13(76.5) | 0.153 |
| Vascular convergence N (%) | 29(60.4) | 5(41.7) | 11(100.0) | 12(70.6) | 0.020 |
| Pleural contact N (%) | 36(75.0) | 12(100.0) | 9(81.8) | 14(82.4) | 0.813 |
| Pleural indentation N (%) | 9(18.8) | 2(16.7) | 5(45.4) | 7(41.2) | 0.015 |
| Air bronchiologram | |||||
| Dilatation N (%) | 14(29.2) | 5(41.7) | 5(45.4) | 8(47.1) | 0.180 |
| Disruption N (%) | 3(6.3) | 1(8.3) | 4(36.4) | 0 | 0.447 |
| Distortion N (%) | 9(18.8) | 2(16.7) | 4(36.4) | 7(41.2) | 0.034 |
| SUVmax | 8.2 ± 5.2 | 5.3 ± 3.1 | 8.2 ± 3.1 | 10.7 ± 4.6 | 0.021 |
| SUVmean | 4.4 ± 3.2 | 2.5 ± 1.4 | 4.2 ± 2.1 | 5.9 ± 2.7 | 0.050 |
| MTV | 4.8 ± 6.2 | 2.1 ± 1.5 | 5.2 ± 3.9 | 8.2 ± 14.2 | 0.119 |
| TLG | 31.3 ± 47.5 | 8.6 ± 7.1 | 26.7 ± 20.8 | 65.3 ± 107.4 | 0.082 |
Notes.
- SUVmax
- maximum standard uptake value
- SUVmean
- mean standard uptake value
- MTV
- metabolic tumor volume
- TLG
- total lesion glycolysis
P value is for comparison of moderate differentiation (acinar and papillary) and poor differentiation (micropapillary and solid).
The measurement data between the two groups were tested by t test.
The counting data between the two groups were tested by chi-square.