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| Research article summary (published 30 Dec 2001): |
Volume cutting for virtual petrous bone surgery.
Full Abstract
A profound knowledge of anatomy and surgical landmarks of the temporal bone is a basic necessity for any otologic surgeon. Because this knowledge, so far, has been mostly taught by limited temporal bone drilling courses, our objective was to create a system for virtual petrous bone surgery that allows the realistic simulation of specific laterobasal surgical approaches. A major requirement was the development of an interactive drill-like tool, together with a new technique for realistic visualization of simulated cut surfaces. The system is based on a volumetric, high-resolution model of the temporal bone, derived from CT. Interactive volume cutting methods using a new multivolume scheme have been developed. In this scheme, cut regions are modeled independently in additional data volumes using voxelization techniques. The voxelization is adapted to successive cutting operations as needed for the simulation of a drill-like tool. A new visualization technique was developed for artifact-free rendering of sharp edges, as formed by the intersection of a cut and an object surface. The new multivolume visualization technique allows high-quality visualization of interactively generated cut surfaces. This is a necessity for a realistic simulation of petrous bone surgery. Our system therefore facilitates comprehension of the complex morphology, and enables the recognition of surgical landmarks, which is most important if injury to delicate organs (e.g., the facial nerve or auditory ossicles) is to be avoided. The system for virtual petrous bone surgery allows the simulation of specific surgical approaches with high-quality visualization. The user can learn about the complex three-dimensional anatomy of the temporal bone from the viewpoint of a real otosurgical procedure.Copyright 2002 Wiley-Liss, Inc.
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Author information
Author/s: Pflesser, Bernhard (B); Petersik, Andreas (A); Tiede, Ulf (U); Höhne, Karl Heinz (KH); Leuwer, Rudolf (R);
Affiliation: Institute of Mathematics and Computer Science in Medicine, University Hospital Hamburg-Eppendorf, Hamburg, Germany. pflesser@uke.uni-hamburg.de
Journal and publication information
Publication Type: Journal Article
Journal: Computer aided surgery : official journal of the International Society for Computer Aided Surgery (Comput Aided Surg), published in United States. (Language: eng)
Reference: 2002-; vol 7 (issue 2) : pp 74-83
Dates: Created 2002/07/11; Completed 2002/10/04; Revised 2004/11/17;
PMID: 12112716, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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