[1] Lausanne Univ Hosp CHUV, Neurosurg Serv, Dept Clin Neurosci, Lausanne, Switzerland
[2] Lausanne Univ Hosp CHUV, Gamma Knife Ctr, Lausanne, Switzerland
[3] Univ Lausanne Unil, FBM, Lausanne, Switzerland
[4] Ecole Polytech Fed Lausanne, Signal Proc Lab LTS 5, Lausanne, Switzerland
[5] Sorbonne Univ, Fac Med, Paris, France
[6] Hop Univ Paris Sud, CHU Bicetre, AP HP, Serv Neurochirurg, Paris, France
[7] CHU Timone, AP HP, Stereotact & Funct Neurosurg Serv, Marseille, France
[8] CHU Timone, AP HP, Gamma Knife Unit, Marseille, France