[1] Ctr Evaluat & Traitement Douleur, F-13385 Marseille, France
[2] Hop Lariboisiere, Ctr Urgences Cephalees, F-75000 Paris, France
[3] CHU Nice, Serv Neurochirurg, F-06000 Nice, France
[4] IGCN EA 7282 Image Guided Clin Neurosci & Connect, UMR ISIT 6284, UdA, F-63000 Clermont Ferrand, France