Bordeaux INP, University of Bordeaux, Bordeaux, France. anne.beuter@wanadoo.fr. Service de neurochirurgie fonctionnelle et stéréotaxique, AP-HM La Timone, Aix-Marseille University, Marseille, France. INSERM U1028 Neuropain, UMR 5292, Centre de Recherche en Neurosciences, Universités Lyon 1 et Saint-Etienne, Saint-Étienne, France. Service de Neurochirurgie, Hôpital Nord, Centre Hospitalier Universitaire de Saint-Etienne, Saint-Étienne, France. School of Life Sciences, Institute for Medical Engineering and Medical Informatics, University of Applied Sciences and Arts Northwestern Switzerland, 4132, Muttenz, Switzerland. Institut Camille Jordan, UMR 5208 CNRS, University Lyon 1, 69622, Villeurbanne, France. INRIA Team Dracula, INRIA Lyon La Doua, 69603, Villeurbanne, France. People's Friendship University of Russia (RUDN University), Miklukho-Maklaya St, Moscow, Russian Federation, 117198.