Inclusion Criteria:

- patients with non-small-cell lung carcinoma hitologicaly proved

- Candidate patients in a treatment with aim guardian by exclusive thoracic
radiotherapy or of concomitant radiochemotherapy (tumoral dose superior to 60 Gy) (
n=5 ).

- Measurable tumor according to the criteria of evaluation RECIST

Exclusion Criteria:

- Histology other one than primitive bronchial cancer not in small cells lung

- The patients for whom no tumoral target is assessable (forgiveness completes after
first chemotherapy, operated patients).

- Patients for whom a radiotherapy with curative aim is not indicated (tumoral
extension, metastases, general state, co-morbidity).

- Patient having benefited from an examination PET in the FDG with in more than 4 weeks
and for which a new PET in the FDG is not necessary with in the framework of its
disease