NDLI: A hybrid elastic model allowing real-time cutting, deformations and force-feedback for surgery training and simulation

Content Provider	IEEE Xplore Digital Library
Author	Delingette, H. Cotin, S. Ayache, N.
Copyright Year	1999
Description	Author affiliation: Projet Epidaure, Inst. Nat. de Recherche en Inf. et Autom., Sophia-Antipolis, France (Delingette, H.)
Abstract	We describe the basic components of a surgery simulator prototype developed at INRIA. After a short presentation of the geometric modeling of anatomical structures from medical images, we insist on the physical modeling components which must allow realistic interaction with surgical instruments. We present three physical models which are well suited for surgery simulation. Those models are based on linear elasticity theory and finite element modeling. The first model pre-computes the deformations and forces applied on a finite element model, therefore allowing the deformation of large structures in real-time. Unfortunately, it does not allow any topology change of the mesh therefore forbids the simulation of cutting during surgery. The second physical model is based on a dynamic law of motion and allows to simulate cutting and tearing. We called this model "tensor-mass" since it is analogous to spring-mass models for linear elasticity. This model allows volumetric deformations and cuttings, but has to be applied to a limited number of nodes to run in real-time. Finally, we propose a method for combining those two approaches into a hybrid model which may allow real time deformations and cuttings of large enough anatomical structures. This model has been implemented in a simulation system and real-time experiments are described and illustrated.
Starting Page	70
Ending Page	81
File Size	222454
Page Count	12
File Format	PDF
ISBN	0769501672
ISSN	10874844
DOI	10.1109/CA.1999.781200
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-05-26
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Deformable models Surgery Medical simulation Solid modeling Anatomical structure Elasticity Finite element methods Virtual prototyping Biomedical imaging Surgical instruments
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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