CUDA accelerated simulation of needle insertions in deformable tissue

This paper presents a stiff needle-deformable tissue interaction model. The model uses a mesh-less discretization of continuum; avoiding thus the expensive remeshing required by the finite element models. The proposed model can accommodate both linear and nonlinear material characteristics. The need...

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Bibliographic Details
Published in:Journal of physics. Conference series 2012-01, Vol.385 (1), p.12006-7
Main Author: Patriciu, Alexandru
Format: Article
Language:English
Subjects:
Computer simulation
Constraints
Deformation
Discretization
Finite element method
Formability
Insertion
Interaction models
Loads (forces)
Mathematical models
Medical imaging
Needles
Physics
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Summary:This paper presents a stiff needle-deformable tissue interaction model. The model uses a mesh-less discretization of continuum; avoiding thus the expensive remeshing required by the finite element models. The proposed model can accommodate both linear and nonlinear material characteristics. The needle-deformable tissue interaction is modeled through fundamental boundaries. The forces applied by the needle on the tissue are divided in tangent forces and constraint forces. The constraint forces are adaptively computed such that the material is properly constrained by the needle. The implementation is accelerated using NVidia CUDA. We present detailed analysis of the execution timing in both serial and parallel case. The proposed needle insertion model was integrated in a custom software that loads DICOM images, generate the deformable model, and can simulate different insertion strategies.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/385/1/012006