کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
499181 863031 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Computation of intra-operative brain shift using dynamic relaxation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Computation of intra-operative brain shift using dynamic relaxation
چکیده انگلیسی

Many researchers have proposed the use of biomechanical models for high accuracy soft organ non-rigid image registration, but one main problem in using comprehensive models is the long computation time required to obtain the solution. In this paper, we propose to use the Total Lagrangian formulation of the Finite Element method together with Dynamic Relaxation for computing intra-operative organ deformations. We study the best ways of estimating the parameters involved and we propose a termination criteria that can be used in order to obtain fast results with prescribed accuracy. The simulation results prove the accuracy and computational efficiency of the method, even in cases involving large deformations, nonlinear materials and contacts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 198, Issues 41–44, 1 September 2009, Pages 3313–3320
نویسندگان
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