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

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

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

dc.contributor.author	Noels, Ludovic
dc.contributor.author	Warfield, Simon Keith
dc.contributor.author	Verly, Jacques G.
dc.contributor.author	Robe, Pierre A.
dc.contributor.author	Vigneron, Lara M.
dc.date.accessioned	2012-10-09T00:45:46Z
dc.date.issued	2012
dc.identifier.citation	Vigneron, Lara M., Ludovic Noels, Simon Keith Warfield, Jacques G. Verly, and Pierre A. Robe. 2012. Serial FEM/XFEM-based update of preoperative brain images using intraoperative MRI. International Journal of Biomedical Imaging 2012: 872783.	en_US
dc.identifier.issn	1687-4188	en_US
dc.identifier.issn	1687-4196	en_US
dc.identifier.uri	http://nrs.harvard.edu/urn-3:HUL.InstRepos:9696330
dc.description.abstract	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 five intraoperative MR images, and we demonstrate that our approach significantly improves the alignment of nonrigidly registered images.	en_US
dc.language.iso	en_US	en_US
dc.publisher	Hindawi Publishing Corporation	en_US
dc.relation.isversionof	doi:10.1155/2012/872783	en_US
dc.relation.hasversion	http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3263624/pdf/	en_US
dash.license	LAA
dc.title	Serial FEM/XFEM-Based Update of Preoperative Brain Images Using Intraoperative MRI	en_US
dc.type	Journal Article	en_US
dc.description.version	Version of Record	en_US
dc.relation.journal	International Journal of Biomedical Imaging	en_US
dash.depositing.author	Warfield, Simon Keith
dc.date.available	2012-10-09T00:45:46Z