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Visualization, Image Processing and Computation in Biomedicine
Главный редактор: Markad Kamath (open in a new tab)

Выходит 4 номеров в год

ISSN Онлайн: 2162-3511

Platform for patient-specific finite-element modeling and application for radiofrequency ablation

Том 1, Выпуск 1, 2012,
DOI: 10.1615/VisualizImageProcComputatBiomed.2012004898
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Краткое описание

Finite element (FE) simulation is frequently used in biophysics problems, but applications using patient-specific geometry have been limited since generating patient-specific meshes is tedious and requires use of multiple software tools. We present a research tool as well as a workflow to generate patient-specific finite element models and demonstrate this tool for simulation of radiofrequency (RF) ablation−a commonly used clinical procedure for localized thermal cancer treatment where patient-specific simulation would allow computer-aided treatment planning. Our research tool allows pre- and post-processing of patient-specific models and provides integration with commercial FE software. Based on a liver cancer patient's CT data set, 3D geometry of bone, liver, tumor, and vessels was derived following tissue segmentation. A RF electrode was placed interactively within the tumor via our tool, and surfaces, as well as volumes, were meshed with triangular and tetrahedral meshes, respectively. Subsequently, tissue heating surrounding the RF electrode and vascular cooling were simulated via commercial FE software, and tissue temperature at the end of a 12-min ablation procedure was visualized as overlay over the patient's CT data with our tool. Simulations such as the one presented may provide additional information for the treating physician for more effective pretreatment planning of procedures. The presented tool may have additional applications in other areas where biophysical simulation of biomedical problems (e.g., biomechanical, bioelectrics) on patient-specific geometry is of interest.

ЦИТИРОВАНО В
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