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Proposal presentation for honours project Lee-Ying Wu BEng(Software) Supervisor: Dr Greg Ruthenbeck

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Endoscopic Sinus Surgery (ESS) Medical simulation Previous studies : what has been done What has been done at Flinders Aim of the project Tools and approaches used to implement blood effects Progress result of the project Summary

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Medical simulator provides realistic user interactions with the simulated patient. Advantages: reduced risk to patients, access to rare scenarios and unlimited repeatability Challenge: increased computational processing when simulating interactive tissue

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Halic et al. (2010) generate realistic bleeding and smoke in virtual-reality (VR) based surgical simulators. The approach they used is to outsource the computation to the graphic processing unit (GPU). Mller et al. (2004) simulate blood using the method based on Smoothed Particle Hydrodynamics (SPH).

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The turbinate model that is rendered in Flinders Sinus Surgery Simulator (Ruthenbeck 2012). The turbinate is part of the accurate 3D model of the sinus of a real patient.

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The triangle mesh view of turbinate shown in the previous slide (Ruthenbeck 2012).

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Tissues have been cut by the backbiter and the see-through view is created (Ruthenbeck 2012).

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Voxels (red triangles) are generated to form the surface for the cut volumes where tissues have been ablated by the backbiter (Ruthenbeck 2012).

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Create realistic blood effects for Flinders Sinus Surgery Simulator

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o Tool: DirectX 11 (Direct3D) Parallel computing architecture CUDA C++ and Microsoft Visual studio 2010 C# Versioning control Subversion

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o Approach Texturing-based blood simulation technique Particle systems Smoothed Particle Hydrodynamics (SPH)

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Creating bleeding effects on the medical simulation provides important cues to trainees/surgeons. These cues are important factors in surgical skill assessments (Halic et al. 2010). The project aims to create realistic blood effects for Flinders Sinus Surgery Simulator.

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Questions?

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HALIC, T., SANKARANARAYANAN, G. & DE, S. 2010. GPU- based efficient realistic techniques for bleeding and smoke generation in surgical simulators. International Journal of Medical Robotics and Computer Assisted Surgery, 6, 431-443. MLLER, M., SCHIRM, S. & TESCHNER, M. 2004. Interactive blood simulation for virtual surgery based on smoothed particle hydrodynamics. Technology and Health Care, 12, 25-31. RUTHENBECK, G. S. 2010. Interactive Soft Tissue for Surgical Simulation. Doctorate of Philosophy, Flinders University, South Australia. RUTHENBECK, G. S., CARNEY, A. S., HOBSON, J. C., SACKS, R., AND REYNOLDS, K. J., 2011, the GPRWMF Virtual Reality Endoscopic Sinus Surgery Simulator.

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