title: Framework for a low-cost intra-operative image-guided neuronavigator including brain shift compensation.
abstract: In this paper we present a methodology to address the problem of brain tissue deformation referred to as 'brain-shift'. This deformation occurs throughout a neurosurgery intervention and strongly alters the accuracy of the neuronavigation systems used to date in clinical routine which rely solely on pre-operative patient imaging to locate the surgical target, such as a tumour or a functional area. After a general description of the framework of our intra-operative image-guided system, we describe a procedure to generate patient specific finite element meshes of the brain and propose a biomechanical model which can take into account tissue deformations and surgical procedures that modify the brain structure, like tumour or tissue resection.
authors.affiliation: TIMC-IMAG Laboratory, Equipe GMCAO, UMR CNRS-UJF 5525, Faculté de Médecine de Grenoble, Pavillon, Taillefer, F38706 La Tronche Cédex, France. Marek.Bucki@imag.fr
authors.forename: M
authors.initials: M
authors.lastname: Bucki
authors.forename: C
authors.initials: C
authors.lastname: Lobos
authors.forename: Y
authors.initials: Y
authors.lastname: Payan
mesh_terms: D000465:Algorithms; D016477:Artifacts; D001921:Brain / Q000473:pathology* / Q000601:surgery*; D003198:Computer Simulation; D005602:France; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000191:economics / Q000379:methods; D007430:Intraoperative Care / Q000191:economics / Q000379:methods; D053783:Magnetic Resonance Imaging, Interventional / Q000191:economics / Q000379:methods*; D008959:Models, Neurological; D009068:Movement; D019635:Neurosurgical Procedures / Q000191:economics / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000191:economics / Q000379:methods*