1. Department of Neurosurgery University Hospital of Angers Angers France
2. INSERM CRCINA Équipe 17, Bâtiment IRIS Angers France
3. Department of Neurosurgery University Hospital of Caen Caen France
4. Angers Medical Faculty Anatomy Laboratory Angers France
5. Department of Physical Medicine and Rehabilitation University Hospital of Angers Nantes France
6. Department of Radiology University Hospital of Angers Angers France
7. Department of Anesthesiology University Hospital of Angers Angers France
8. LARIS EA 7315, Image Signal et Sciences du Vivant Angers Teaching Hospital Angers France