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

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Title: Serial FEM/XFEM-Based Update of Preoperative Brain Images Using Intraoperative MRI
Author: Noels, Ludovic; Warfield, Simon Keith; Verly, Jacques G.; Robe, Pierre A.; Vigneron, Lara M.

Note: Order does not necessarily reflect citation order of authors.

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.
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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.
Published Version: doi:10.1155/2012/872783
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3263624/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:9696330

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