Enhancing realism of wet surfaces in temporal bone surgical simulation.

Full Abstract

We present techniques to improve visual realism in an interactive surgical simulation application: a mastoidectomy simulator that offers a training environment for medical residents as a complement to using a cadaver. As well as displaying the mastoid bone through volume rendering, the simulation allows users to experience haptic feedback and appropriate sound cues while controlling a virtual bone drill and suction/irrigation device. The techniques employed to improve realism consist of a fluid simulator and a shading model. The former allows for deformable boundaries based on volumetric bone data, while the latter gives a wet look to the rendered bone to emulate more closely the appearance of the bone in a surgical environment. The fluid rendering includes bleeding effects, meniscus rendering, and refraction. We incorporate a planar computational fluid dynamics simulation into our three-dimensional rendering to effect realistic blood diffusion. Maintaining real-time performance while drilling away bone in the simulation is critical for engagement with the system.

Author information

Author/s: Kerwin, Thomas (T); Shen, Han-Wei (HW); Stredney, Don (D);

Affiliation: The Ohio State University and the Ohio Supercomputer Center, Columbus, OH 43212, USA. kerwin(-atsign-)cse.ohio-state.edu

Grants: 1 R01 DC06458-01A1 (Agency:NIDCD NIH HHS) ; R01 DC006458-01A1 (Agency:NIDCD NIH HHS)

Journal and publication information

Publication Type: Journal Article; Research Support, N.I.H., Extramural

Journal: IEEE transactions on visualization and computer graphics (IEEE Trans Vis Comput Graph), published in United States. (Language: eng)

Reference: -2009 Sep-Oct; vol 15 (issue 5) : pp 747-58

Dates: Created 2009/07/10; Completed 2009/09/17; Revised 2009/09/24;

PMID: 19590102, status: MEDLINE (last retrieval date: 9/25/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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