Table 4. Analysis of the radiation exposure (mean, minimum, maximum) associated with the management of SPN for chest radiograph according to the management strategy and for patients with a final diagnosis of lung cancer and those without it.
| Intervention | N (%) | Total (mSv) | Cancer (mSv) | No cancer (mSv) | p-value |
|---|---|---|---|---|---|
| Follow-up | |||||
| x-ray | 35 (41.7) | 3.2 (0.2–28.2) | 7.2 (7.2–7.2) | 3.0 (0.2–28.2) | 0.071 |
| CT | 48 (57.1) | 15.0 (7.1–60.1) | 32.1 (32.1–32.1) | 14.2 (7.1–60.1) | 0.363 |
| PET/CT | 1 (1.2) | 39.1 (39.1–39.1) | - | 39.1 (39.1–39.1) | - |
| Total | 84 (17.5) | 10.3 (0.2–60.1) | 19.7 (7.2–32.1) | 9.9 (0.2–60.1) | 0.027 |
| Immediate intervention | |||||
| x-ray | 67 (22.3) | 1.7 (0.2–14.2) | - | 1.7 (0.2–14.2) | - |
| CT | 225 (74.8) | 14.0 (7.1–60.1) | 19.3 (7.1–39.1) | 13.1 (7.1–60.1) | 0.099 |
| PET/CT | 9 (3.0) | 26.3 (25.1–28.1) | 25.9 (25.1–27.1) | 26.7 (25.1–28.1) | 0.444 |
| Total | 301 (62.7) | 11.6 (0.2–60.1) | 10.4 (7.1–39.1) | 20.3 (0.2–60.1) | 0.003 |
| TOTAL | 480 (100.0) | 9.1 (0.1–60.1) | 20.3 (7.1–39.1) | 8.1 (0.1–60.1) | <0.001 |