1. Department of Neurosurgery University Hospital of Caen Normandy Caen France
2. Normandie UnivUNICAENCEACNRSISTCT/CERVOxy GroupGIP Cyceron Caen France
3. INSERMCRCINAEquipe 17Bâtiment IRIS Angers France
4. Department of Neurosurgery University Hospital of Angers Angers France
5. Department of Radiology University Hospital of Angers Angers France
6. INSERMUMR‐S U1237PhIND GroupGIP Cyceron Caen France
7. Department of Anesthesiology University Hospital of Angers Angers France
8. LARIS, ISISV Team University of Angers Angers France