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Figure 5
Differences in CT and PET scan parameters according to histology
| CT and PET scan parameter | Non-invasive adenocarcinoma | Invasive adenocarcinoma | p |
|---|---|---|---|
| GGO% | 42±7.05 | 19±2.91 | 0.011 |
| TDR% | 53±9.31 | 24±2.89 | < 0.001 |
| Consolidation diameter | 13±2.19 | 21±1.44 | 0.07 |
| SUVmax | 2.75±0.91 | 7.16±0.73 | 0.033 |
| SUVindex | 0.98±0.25 | 3.12±0.36 | 0.037 |
| MTV | 3.6±1.74 | 5.3±0.49 | 0.293 |
| TLG | 12±7.31 | 19.5±4.34 | 0.541 |
Characteristics of 58 surgically-treated patients with stage I adenocarcinoma
| Non-invasive adenocarcinoma (7 patients) | Invasive adenocarcinoma (51 patients) | p | |
|---|---|---|---|
| Gender | |||
| Female | 4 | 38 | 0.178 |
| Male | 3 | 13 | |
| Age (median;range) | 67 (46-75) | 65 (48-85) | 0.530 |
| Type of surgery | |||
| Wedge resection | 3 | 10 | 0.188 |
| Lobectomy | 4 | 40 | |
| Bilobectomy | 0 | 1 | |
| TNM | |||
| Tis | 1 | 0 | 0.056 |
| T1aN0 | 3 | 9 | |
| T1bN0 | 1 | 17 | |
| T1cN0 | 2 | 16 | |
| T2aN0 | 0 | 9 |
Characteristics of patient population grouped by standardized uptake value (SUV)max and SUVindex
| SUVmax | SUVindex | |||||
|---|---|---|---|---|---|---|
| < 2.6 | ≥ 2.6 | p | < 0.9 | ≥ 0.9 | p | |
| Total No. patients | 12 | 46 | 10 | 48 | ||
| Histology | ||||||
| NIA (7) | 3 | 2 | ||||
| IA (51) | 43 | 0.028 | 46 | 0.001 | ||
| Gender | ||||||
| male | 32 | 35 | ||||
| female | 14 | 1.00 | 13 | 0.458 | ||
| Smoke | ||||||
| Yes | 10 | 37 | 1.00 | 40 | 0.381 | |
| No | 2 | 9 | 8 | |||
| T | ||||||
| Tis–T1a | 7 | 7 | ||||
| T1b | 13 | 15 | ||||
| T1c | 17 | 0.014 | 17 | 0.011 | ||
| T2a | 9 | 9 | ||||
| Grading | ||||||
| G1 | 1 | 1 | ||||
| G2 | 38 | 0.011 | 40 | 0.004 | ||
| G3 | 7 | 7 | ||||