Interest of the 7 Tesla MRI in the Diagnosis of Post-concussion Syndromes Among Patients With Mild Traumatic Brain Injury

Inclusion Criteria: * Mild traumatic brain injury with glascow included between 13 and 15, with indication of scan * possibilty of performing an MRI at 7 days * Patient able to get to MRI at Day 7 * Free consentement to the study * Any measure of guardianship or curatorship , any link of subordination Exclusion Criteria: * Patient does not hospitalized about head trauma * Inhability to move out for run the seven day MRI * Contraindication for MRI * Patient having already consulted the emergency for head trauma requiring imaging * Patients with psychiatric troubles : bipolarity, panic trouble, depressive trouble, schizophrenia * Patient already enrolled in the study * History of brain, tumor or neurosurgery * Untreated or poorly treated chronic vertigo * Untreated or poorly treated chronic migraines * Claustrophobia * BMI \> 40 * Refusal of consent to take part of the study * No social welfare or inhability to benefit of it by a third party * Patients with enhanced protection : minor aged under 18 ; person with freedom restriction by justice decision or administrative ; homeliving in health or social establishment ; adult in legal protection * Pregnant and nursing women