Study of the Capacity of the MRI Spectroscopy to Define the Tumor Area Enriched in Glioblastoma Stem Cells. Proof of Concept Study

Inclusion Criteria: First part of the study (Surgery and Imagery): 1. Surgical indication for patients who present radiological criteria of glioblastoma. 2. Patient who are ≥18 years old 3. Patient must have performance status between 0 and 2 on the ECOG Performance Scale 4. Life expectancy ≥ 3 months 5. Patient affiliated to social security regimen 6. Patient has voluntarily agreed to participate by giving written informed consent for the first part of the study. Second part of the study (Treatment and Biology): 1. Histologically confirmed glioblastoma 2. Patient must have performance status between 0 and 2 on the ECOG Performance Scale or 3 only is due to motor deficit. 3. Life expectancy ≥ 3 months 4. Patient affiliated to social security regimen 5. Patient has voluntarily agreed to participate by giving written informed consent for the second part of the study. Exclusion Criteria: First part of the study (Surgery and Imagery): 1. Patients who are not allowed to perform an MRI 2. Spectroscopic exam whose results are not contributive 3. Pregnant or nursing patient, 4. Patients under law protection 5. Patient who presents conditions that would interfere with cooperation with the requirements of the trial. 6. Patient who presents medical, severe or chronic biological or psychiatric conditions not allowing his enrolment in the study, according to the investigator's opinion Second part of the study (Treatment and Biology): 1.Biological material received in the lab more than 48 hours after surgery.