Exploratory Study of Cerebral Perfusion and Metabolic Alterations and Neurocognitive Disorders in Patients With Unruptured Arteriovenous Malformations Before and After Surgical Treatment

For the 18F-FDG (fluorodeoxyglucose labelled with fluorine-18) PET scan, a dynamic protocol with the radiopharmaceutical injected directly under the scanner. The dose injected will be the same as that used in routine clinical practice, i.e. calculated based on the patient's weight. The patient must fast for 6 hours prior to the examination. The total duration of the dynamic PET scan is estimated at approximately 1 hour 30 minutes.

For the neuropsychological assessment, a series of standardised tests, validated for the assessment of cognitive functions, will be administered. This assessment will be carried out by neuropsychologists trained in the use of these tests and who administer them as part of their routine practice, or by a trained physiatrist specialising in disorders of the central nervous system. The neuropsychological assessment is expected to take 2 to 3 hours per visit for the patient.