Staging procedures aiming at nodal or distant metastases
| Thoracotomy (n=144) | No thoracotomy (n=193) | |
|---|---|---|
| Imaging: | ||
| Chest CT (+ upper abdomen) | 143 (99%) | 172 (89%) |
| Ultrasound (abdomen) | 57 (40%) | 87 (45%) |
| Bone scintigraphy | 45 (31%) | 79 (41%) |
| CT/MRI brain | 13 (9%) | 41 (21%) |
| CT abdomen | 7 (5%) | 15 (8%) |
| Invasive procedures: | ||
| Mediastinoscopy | 67 (47%) | 41 (21%) |
| Other | 40 (28%) | 117 (61%) |