title: Deployment of self-expandable stents in aneurysmatic cerebral vessels: comparison of different computational approaches for interventional planning.
abstract: In the last few years, there has been a growing focus on faster computational methods to support clinicians in planning stenting procedures. This study investigates the possibility of introducing computational approximations in modelling stent deployment in aneurysmatic cerebral vessels to achieve simulations compatible with the constraints of real clinical workflows. The release of a self-expandable stent in a simplified aneurysmatic vessel was modelled in four different initial positions. Six progressively simplified modelling approaches (based on Finite Element method and Fast Virtual Stenting--FVS) have been used. Comparing accuracy of the results, the final configuration of the stent is more affected by neglecting mechanical properties of materials (FVS) than by adopting 1D instead of 3D stent models. Nevertheless, the differences showed are acceptable compared to those achieved by considering different stent initial positions. Regarding computational costs, simulations involving 1D stent features are the only ones feasible in clinical context.
authors.affiliation: Center for Computational Imaging and Simulation Technologies in Biomedicine (CISTIB), Universitat Pompeu Fabra (UPF), C/Roc Boronat 138, 08018 Barcelona, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Bernardini
authors.forename: I
authors.initials: I
authors.lastname: Larrabide
authors.forename: L
authors.initials: L
authors.lastname: Petrini
authors.forename: G
authors.initials: G
authors.lastname: Pennati
authors.forename: E
authors.initials: E
authors.lastname: Flore
authors.forename: M
authors.initials: M
authors.lastname: Kim
authors.forename: A F
authors.initials: AF
authors.lastname: Frangi
mesh_terms: D001783:Blood Flow Velocity; D001794:Blood Pressure; D001807:Blood Vessel Prosthesis; D002560:Cerebrovascular Circulation; D003198:Computer Simulation; D017076:Computer-Aided Design; D019544:Equipment Failure Analysis; D006801:Humans; D002532:Intracranial Aneurysm / Q000503:physiopathology* / Q000601:surgery*; D008955:Models, Cardiovascular; D008959:Models, Neurological; D011474:Prosthesis Design; D015607:Stents; D025321:Surgery, Computer-Assisted / Q000379:methods*; D016896:Treatment Outcome