Surveillance With PET/CT and Liquid Biopsies of Stage I-III Lung Cancer Patients After Completion of Definitive Therapy

In the experimental arm (A), an FDG-PET/CT scan will replace the CT-scan at 6, 12, 18 and 24 months post-treatment. A standard CT-scan will be performed at 3, 9, 15 and 21 months post-treatment. All patients will be asked for a blood sample for liquid biopsy and to fill in a quality of life questionnaire, concurrently every 3 months.