Showing results 1 to 20 of 21
   Enhanced FEM-based Modeling of Brain Shift Deformation in Image-Guided Neurosurgery; Boman, Romain  ; Ponthot, Jean-Philippe et alin Journal of Computational & Applied Mathematics (2010), 234 We consider the problem of improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain ... [more ▼] We consider the problem of improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain deformation. We focus on the brain shift deformation that occurs just after the opening of the skull and dura. The heart of our system is a nonrigid registration technique using a biomechanical model. We specifically work on two axes: the representation of the structures in the biomechanical model and the evaluation of the surface landmark displacement fields between intraoperative MR images. Using the modified Hausdorff distance as an image similarity measure, we demonstrate that our approach significantly improves the alignment of the intraoperative images. ' 2009 Elsevier B.V. All rights reserved. [less ▲] Detailed reference viewed: 57 (19 ULg)Issues in FEM-based Modeling of Brain Shift in Neurosurgery; Boman, Romain ; Ponthot, Jean-Philippe et alin Hogge, Michel; Van Keer, R.; Noels, Ludovic (Eds.) et al Proceedings of ACOMEN’2008, Advanced Computational Methods in Engineering (2008, May) We consider the problem of improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain ... [more ▼] We consider the problem of improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain deformation. In this work, we focus on the brain shift deformation that occurs just after the opening of the skull and dura, before any cut and subsequent deformation has happened. We test several algorithms and parameters in order to evaluate their impact on the modeling of the brain shift. [less ▲] Detailed reference viewed: 42 (11 ULg)Le rôle de l’ingénieur en imagerie médicaleVerly, Jacques ; ; et alConference (2007) Detailed reference viewed: 8 (0 ULg)Seminar, “Change Detection and Similarity Afternoon”, Royal Military Academy (RMA); Verly, Jacques Scientific conference (2006) Detailed reference viewed: 1 (0 ULg)Problem and challenges of image-guided neurosurgical navigation and interventionVerly, Jacques ; ; et alConference (2006) Detailed reference viewed: 4 (0 ULg)Preoperative Brain Image Update with FEM- and XFEM-based Biomedical Model; ; et al Conference (2006) Detailed reference viewed: 1 (0 ULg)Intraoperative brain image update based on biomechninical models; ; Verly, Jacques Conference (2006) XFEM-based modeling of successive resections for preoperative image updating; ; et al Conference (2006) Detailed reference viewed: 7 (0 ULg)Image-guided surgery: the engineer’s view- pointVerly, Jacques ; ; et alScientific conference (2005) Detailed reference viewed: 4 (0 ULg)Seminar, Laboratory of Image Synthesis and Analysis; Verly, Jacques Scientific conference (2005) Detailed reference viewed: 2 (0 ULg)Application of XFEM to image-guided surgery; ; Verly, Jacques et alConference (2005) Detailed reference viewed: 4 (0 ULg)Update of diagnostic preoperative images using low-field interventional MRI for neurosurgery: rigid-body registration; ; et al Conference (2005) Detailed reference viewed: 3 (0 ULg)Seminar, Surgical Planning Laboratory (SPL); Verly, Jacques Scientific conference (2004) Detailed reference viewed: 3 (0 ULg)Modelling surgical cuts, retractions, and resections via Extended Finite Element Method; Verly, Jacques ; Conference (2004) Detailed reference viewed: 1 (0 ULg)On Extended Finite Element Method (XFEM) for modelling of organ deformations associated with surgical cuts; ; Verly, Jacques Conference (2004) Detailed reference viewed: 4 (2 ULg)Nonrigid registration and multimodality image fusion for 3D image-guided neurosurgeryVerly, Jacques ; ; et alConference (2004) Detailed reference viewed: 2 (0 ULg)Nonrigid registration and multimodality image fusion for 3D image-guided neurochirurgical planning and navigationVerly, Jacques ; ; et alConference (2004) Detailed reference viewed: 1 (0 ULg)3D nonrigid registration and multimodality fusion for image-guided neurosurgeryVerly, Jacques ; ; et alConference (2003) Detailed reference viewed: 4 (0 ULg)Human-visual-system-based fusion of multimodality 3D neuroimagery using brain-shift-compensating finite-element-based deformable modelsVerly, Jacques ; ; et alConference (2003) Detailed reference viewed: 5 (0 ULg)
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