Early Diagnosis of Pseudoprogression Using 11C-Methionine PET-MRI After Concomitant Radiochemotherapy Treatment for Glioblastoma.

Exclusion Criteria

• •Subject under safeguard of justice (tutelage, curatorship),
• •Minor patient,
• •Patient without signs of progression MRI (stable disease or good response to treatment according to the RANO 2010 criteria),
• •Clinical or radiological progression justifying a change of treatment,
• •Patient not able to decide and with refusal of the family entitled to continue research.
• •Pregnant woman, breastfeeding or old enough to have children but without effective contraception,
• •Contraindication to performing an MRI: permanently fixed metal parts (pacemaker, cerebral clip, cochlear implant, pin or screw for recent bone fracture, dental equipment, metal splinters), claustrophobia,
• •Contraindication to gadolinium according to ANSM 2017 recommendations