ORBi: Vigneron Lara - Serial FEM/XFEM-Based Update of Preoperative Brain Images Using Intraoperative MRI

Reference : Serial FEM/XFEM-Based Update of Preoperative Brain Images Using Intraoperative MRI


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Multidisciplinary, general & others Engineering, computing & technology : Mechanical engineering Human health sciences : Laboratory medicine & medical technology
	To cite this reference:	http://hdl.handle.net/2268/103289

Title :	Serial FEM/XFEM-Based Update of Preoperative Brain Images Using Intraoperative MRI
Language :	English
Author, co-author :	Vigneron, Lara [> >]
	Noels, Ludovic [Université de Liège - ULg > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3) >]
	Warfield, Simon [Harvard Medical School, Harvard Medical School > Computational Radiology Laboratory > > >]
	Verly, Jacques [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Exploitation des signaux et images >]
	Robe, Pierre [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Département des sciences biomédicales et précliniques >]
Publication date :	Jan-2012
Journal title :	International Journal of Biomedical Imaging
Publisher :	Hindawi Publishing Corporation
Volume :	2012
Pages :	ID 872783, 17 pages
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	1687-4188
e-ISSN :	1687-4196
Keywords :	[en] Nonrigid registration ; intraoperative MR ; brain shift ; resection ; FEM ; XFEM ; biomechanical model
Abstract :	[en] Current neuronavigation systems cannot adapt to changing intraoperative conditions over time. To overcome this limitation, we present an experimental end-to-end system capable of updating 3D preoperative images in the presence of brain shift and successive resections. The heart of our system is a nonrigid registration technique using a biomechanical model, driven by the deformations of key surfaces tracked in successive intraoperative images. The biomechanical model is deformed using FEM or XFEM, depending on the type of deformation under consideration, namely brain shift or resection. We describe the operation of our system on two patient cases, each comprising ¯ve intraoperative MR images, and demonstrate that our approach significantly improves the alignment of nonrigidly registered images.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/103289
DOI :	10.1155/2012/872783
Other URL :	http://dx.doi.org/10.1155/2012/872783
Mentions required by the publisher for OA :	This is an open access article distributed under the Creative Commons Attribution License

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