We will introduce a pretherapy [18F]-FMISO PET-CT in the treatment planning of patients suffering of different newly diagnosed glioblastoma and eligible to a radical treatment with curative intent, consisting of conformational radiotherapy and chemotherapy. [18F]-FMISO PET-CT results will not be take into account for the patient management. We will test different acquisition protocols and use a wild panel of quantification parameters issued from published studies and original ones developed by our team enable to describe [18F]-FMISO uptake. Patients will be followed clinically and para-clinically during one year after the end of the treatment according to the edited recommendations of each tumour type and grade to analyze outcome (failure is define as persistent disease in the primary site, progression of disease, locoregional relapse after complete response or distant metastasis). Thus we will be able to measure failure free survival and determine overall survival.