期刊
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
卷 28, 期 5, 页码 574-588出版社
WILEY-BLACKWELL
DOI: 10.1002/cnm.1491
关键词
real time; surgery; model order reduction; X-FEM
This paper describes a novel approach for the simulation of surgery by a combined technique of model order reduction and extended finite element method (X-FEM) methods. Whereas model order reduction techniques employ globally supported (Ritz) shape functions, a combination with X-FEM methods on a locally superimposed patch is developed for cutting simulation without remeshing. This enables to obtain models with very few degrees of freedom that run under real-time constrains even for highly non-linear tissue constitutive equations. To show the performance of the technique, we studied an application to refractive surgery in the cornea. Copyright (c) 2012 John Wiley & Sons, Ltd.
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