title: Interactive simulation of embolization coils: modeling and experimental validation.
abstract: Coil embolization offers a new approach to treat aneurysms. This medical procedure is namely less invasive than an open-surgery as it relies on the deployment of very thin platinum-based wires within the aneurysm through the arteries. When performed intracranially, this procedure must be particularly accurate and therefore carefully planned and performed by experienced radiologists. A simulator of the coil deployment represents an interesting and helpful tool for the physician by providing information on the coil behavior. In this paper, an original modeling is proposed to obtain interactive and accurate simulations of coil deployment. The model takes into account geometric nonlinearities and uses a shape memory formulation to describe its complex geometry. An experimental validation is performed in a contact-free environment to identify the mechanical properties of the coil and to quantitatively compare the simulation with real data. Computational performances are also measured to insure an interactive simulation.
authors.affiliation: Project-Team Alcove, INRIA Nord-Europe, France. jeremie.dequidt@lifl.fr
authors.forename: Jérémie
authors.initials: J
authors.lastname: Dequidt
authors.forename: Maud
authors.initials: M
authors.lastname: Marchal
authors.forename: Christian
authors.initials: C
authors.lastname: Duriez
authors.forename: Erwan
authors.initials: E
authors.lastname: Kerien
authors.forename: Stéphane
authors.initials: S
authors.lastname: Cotin
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004621:Embolization, Therapeutic / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D002532:Intracranial Aneurysm / Q000473:pathology / Q000503:physiopathology* / Q000628:therapy*; D008954:Models, Biological; D019919:Prosthesis Implantation / Q000379:methods; D013813:Therapy, Computer-Assisted / Q000379:methods*; D014584:User-Computer Interface