title: Anticipation of brain shift in Deep Brain Stimulation automatic planning.
abstract: Deep Brain Stimulation is a neurosurgery procedure consisting in implanting an electrode in a deep structure of the brain. This intervention requires a preoperative planning phase, with a millimetric accuracy, in which surgeons decide the best placement of the electrode depending on a set of surgical rules. However, brain tissues may deform during the surgery because of the brain shift phenomenon, leading the electrode to mistake the target, or moreover to damage a vital anatomical structure. In this paper, we present a patient-specific automatic planning approach for DBS procedures which accounts for brain deformation. Our approach couples an optimization algorithm with FEM based brain shift simulation. The system was tested successfully on a patient-specific 3D model, and was compared to a planning without considering brain shift. The obtained results point out the importance of performing planning in dynamic conditions.
authors.forename: Noura
authors.initials: N
authors.lastname: Hamzé
authors.forename: Alexandre
authors.initials: A
authors.lastname: Bilger
authors.forename: Christian
authors.initials: C
authors.lastname: Duriez
authors.forename: Stéphane
authors.initials: S
authors.lastname: Cotin
authors.forename: Caroline
authors.initials: C
authors.lastname: Essert
mesh_terms: D000465:Algorithms; D001921:Brain / Q000033:anatomy & histology / Q000502:physiology / Q000601:surgery; D046690:Deep Brain Stimulation / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D019635:Neurosurgical Procedures / Q000379:methods*; D025321:Surgery, Computer-Assisted / Q000379:methods*