Table 1

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 scintigraphy45 (31%)79 (41%)
    CT/MRI brain13 (9%)41 (21%)
    CT abdomen7 (5%)15 (8%)
Invasive procedures:
    Mediastinoscopy67 (47%)41 (21%)
    Other40 (28%)117 (61%)