Presented at the 79th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery, Bonn, Germany, April 30–May 04, 2008.
Virtual reality: A new paranasal sinus surgery simulator†
Article first published online: 9 DEC 2009
Copyright © 2009 The American Laryngological, Rhinological, and Otological Society, Inc.
Volume 120, Issue 2, pages 420–426, February 2010
How to Cite
Tolsdorff, B., Pommert, A., Höhne, K. H., Petersik, A., Pflesser, B., Tiede, U. and Leuwer, R. (2010), Virtual reality: A new paranasal sinus surgery simulator. The Laryngoscope, 120: 420–426. doi: 10.1002/lary.20676
- Issue published online: 20 JAN 2010
- Article first published online: 9 DEC 2009
- Manuscript Accepted: 9 JUL 2009
- Sinus surgery;
- virtual reality;
- haptic feedback;
- volume model
Virtual surgical training systems are of growing value. Current prototypes for endonasal sinus surgery simulation are very expensive or lack running stability. No reliable system is available to a notable number of users yet. The purpose of this work was to develop a dependable simulator running on standard PC hardware including a detailed anatomic model, realistic tools and handling, stereoscopic view, and force feedback.
A three-dimensional voxel model was created based on a high-resolution computed tomography study of a human skull, from which the bony structures were segmented. The mucosa and organs at risk were added manually. The model may be manipulated with virtual surgical tools controlled with a low-cost haptic device, which is also used to adjust microscopic or endoscopic views. Visualization, haptic rendering, and tissue removal are represented with subvoxel resolution.
The handling of the model is convincing. The haptic device provides a realistic feeling regarding the interaction between tool tip and anatomy. Three-dimensional orientation and the look and feel of virtual surgical interventions get close to reality.
The newly developed system is a stable, fully operational simulator for sinus surgery based on standard PC hardware. Besides the limitations of a low-cost haptic device, the presented system is highly realistic regarding anatomy, visualization, manipulation, and the appearance of the tools. It is mainly intended for gaining surgical anatomy knowledge and for training navigation in a complex anatomical environment. Learning effects, including motor skills, have yet to be quantified. Laryngoscope, 2010