Abstract
As a safe and feasible alternative to enriching and enhancing traditional surgical training, virtual-reality-based surgical simulators have been investigated for a long time. But it is still a challenge for researchers to accurately depict the behavior of human tissue without losing the flexibility of simulation. In this paper, we propose an improved scheme of an interactive finite element model for simulating the surgical process of organ deformation, cutting, dragging, and poking, which can maximally compromise the flexibility and reality of soft-tissue models. The scheme is based on our hybrid condensed finite element model for surgical simulation, which consists of the operational region and nonoperational region. Different optimizing methods applied to these regions make a contribution to the speedup of the calculation. Considering in a real surgical operation, dragging or poking operations are also necessary for surgeons to examine surrounding tissues of the pathological focus. The calculation within the area newly applied with forces in the nonoperational region is handled in our new scheme. The algorithm is modified accordingly in order to cope with this aspect. The design and implementation of the approach are presented. Finally, we provide two models to test our scheme. The results are analyzed and discussed to show the efficiency of our scheme.
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The WWW Resource (Last visit: 19 December 2004). http://dahweb.engr.ucdavis.edu/dahweb/126site/chp4.pdf, http://dahweb.engr.ucdavis.edu/dahweb/126site/chp5.pdf
The Visible Human Project (Last visit: 7 June 2005). http://www.nlm.nih.gov/research/visible/visible_human.html
Berkley, J., Weghorst, S., Gladstone, H., Raugi, G., Berg, D., Ganter, M.: Banded matrix approach to finite element modeling for soft tissue simulation. In: Virtual Reality: Research, Development, and Application 4 (1999)
Bro-Nielsen, M., Cotin, S.: Real-time volumetric deformable models for surgery simulation using finite elements and condensation. In: Proceedings of Eurographics 1996, pp. 57–66 (1996)
Butler, D.L., Grood, E.S., Noyes, F.R., Zernicke, R.F.: Biomechanics of ligaments and tendons. Exercise Sport Sci. Rev. 6, 125–181 (1978)
Chandrupatla, T.R., Belegundu, A.D.: Introduction to Finite Elements in Engineering. Prentice Hall, Upper Saddle River, NJ (1997)
Chen, B.Y., Ono, Y., Johan, H., Ishii, M., Nishita, T., Feng, J.: 3D model deformation along a parametric surface. In: Proceedings of IASTED 2002 International Conference on Visualization, Imaging and Image Processing, pp. 282–287 (2002)
Cotin, S., Delingette, H., Ayache, N.: Real-time elastic deformations of soft tissues for surgery simulation. IEEE Trans. Visual. Comput. Graph. 15(1), 62–73 (1999)
Cotin, S., Delingette, H., Ayache, N.: A hybrid elastic model allowing real-time cutting, deformation and force-feedback for surgery training and simulation. Visual Comput. 16(8), 437–452 (2000)
Davies, B.W., Campbell, W.B.: Inguinal hernia repair: See one, do one, teach one? Ann. R. Coll. Surgeons Engl. 77, 299–301 (1995)
Delingette, H., Subsol, G., Cotin, S., Pignon, J.: A craniofacial surgery simulation testbed. In: Proceedings of Visualization in Biomedical Computing, pp. 607–618 (1994)
Duck, F.A.: Physical Properties of Tissue: A Comprehensive Reference Book. Acadamic, New York (1990)
Kardestuncer, H., et al.: Finite Element Handbook. McGraw-Hill, New York (1987)
Mollemans, W., Schutyser, F., Cleynenbreugel, J.V., Suetens, P.: Fast soft tissue deformation with tetrahedral mass spring model for maxillofacial surgery planning systems. In: Proceedings of Medical Image Computing and Computer-Assisted Intervention Conference (partII), pp. 371–379 (2004)
Ono, Y., Chen, B.Y., Nishita, T., Feng, J.: Free-form deformation with automatically generated multiresolution lattices. In: Proceedings of IEEE 2002 International Symposium on Cyber Worlds, pp. 472–479 (2002)
Parke, F.I.: Parameterized models for facial animation. IEEE Comput. Graph. Appl. 2, 61–68 (1982)
Picinbono, G., Lombardo, J.C., Delingette, H., Ayache, N.: Improving realism of a surgery simulator: linear anisotropic elasticity, complex interactions and force extrapolation. Tech. Rep. 4018, INRIA (2000)
Platt, S.M., Badler, N.I.: Animation facial expressions. Comput. Graph. 15(3), 245–252 (1981)
Waters, K.: A muscle model for animating three-dimensional facial expression. In: Proceedings of ACM SIGGRAPH 1987, pp. 17–24 (1987)
Wu, W., Heng, P.A.: A hybrid condensed finite element model with GPU acceleration for interactive 3D soft tissue cutting. Comput. Animat. Virtual Worlds 15(3–4), 219–227 (2004)
Yang, X.S., Heng, P.A., Tang, Z.S.: Constrained tetrahedral mesh generation of human organs on segmented volume. In: Proceedings of International Conference on Diagnostic Imaging and Analysis, pp. 294–299 (2002)
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Wu, W., Heng, P. An improved scheme of an interactive finite element model for 3D soft-tissue cutting and deformation. Visual Comput 21, 707–716 (2005). https://doi.org/10.1007/s00371-005-0310-6
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DOI: https://doi.org/10.1007/s00371-005-0310-6