
Proceedings Paper
History compounding: a novel speckle reduction technique for OCT guided cochleostomyFormat | Member Price | Non-Member Price |
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Paper Abstract
Optical coherence tomography (OCT) is a promising candidate for monitoring the bottom of the drilled channel during
cochleostomy to prevent injury to the critical structure under the bone tissue. While the thickness of the overlaying bone
tissue is changed during the drilling process, the wave front of the backscattered light is also altered, resulting in
changing speckle patterns of the observed structures in the sequential historical scans. By averaging the different patterns
in these scans, named history compounding, the speckles can be reduced and the detection of critical structure becomes
much easier. Before averaging, the refractive index of bone tissue 𝑛𝑏 has to be compensated so that the speckles of the
same structure in different historical scans can be aligned together. An accurate method for measuring the refractive
index nb using OCT is presented. Experiments were conducted to evaluate history compounding and the new technique
is proved to be an effective, flexible and intuitive speckle reduction technique for OCT guided cochleostomy as well as
hard tissue ablation of other kind.
Paper Details
Date Published: 20 March 2013
PDF: 6 pages
Proc. SPIE 8571, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII, 85713H (20 March 2013); doi: 10.1117/12.2006979
Published in SPIE Proceedings Vol. 8571:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)
PDF: 6 pages
Proc. SPIE 8571, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII, 85713H (20 March 2013); doi: 10.1117/12.2006979
Show Author Affiliations
Yaokun Zhang, Karlsruhe Institute of Technology (Germany)
Tom Pfeiffer, Ludwig-Maximilians-Univ. München (Germany)
Wolfgang Wieser, Ludwig-Maximilians-Univ. München (Germany)
Marcel Weller, Duesseldorf Univ. Hospital (Germany)
Tom Pfeiffer, Ludwig-Maximilians-Univ. München (Germany)
Wolfgang Wieser, Ludwig-Maximilians-Univ. München (Germany)
Marcel Weller, Duesseldorf Univ. Hospital (Germany)
Robert Huber, Ludwig-Maximilians-Univ. München (Germany)
Thomas Klenzner, Duesseldorf Univ. Hospital (Germany)
Jörg Raczkowsky, Karlsruhe Institute of Technology (Germany)
Heinz Wörn, Karlsruhe Institute of Technology (Germany)
Thomas Klenzner, Duesseldorf Univ. Hospital (Germany)
Jörg Raczkowsky, Karlsruhe Institute of Technology (Germany)
Heinz Wörn, Karlsruhe Institute of Technology (Germany)
Published in SPIE Proceedings Vol. 8571:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)
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