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Optical coherence tomography of the oval window niche

Published online by Cambridge University Press:  13 January 2009

T Just*
Affiliation:
Department of Otorhinolaryngology, University of Rostock, Germany
E Lankenau
Affiliation:
Institute for Biomedical Optics, University of Lübeck, Germany
G Hüttmann
Affiliation:
Institute for Biomedical Optics, University of Lübeck, Germany
H W Pau
Affiliation:
Department of Otorhinolaryngology, University of Rostock, Germany
*
Address for correspondence: Dr T Just, Department of Otorhinolaryngology, Head and Neck Surgery, University of Rostock, Doberaner Strasse 137-9, 18057 Rostock, Germany. Fax: +49 381 494-8302 E-mail: tino.just@med.uni-rostock.de

Abstract

Objective:

Optical coherence tomography was used to study the stapes footplate, both in cadaveric temporal bones and during middle-ear surgery.

Materials and methods:

Optical coherence tomography was conducted on five temporal bone preparations (from two children and three adults) and in eight patients during middle-ear surgery. A specially equipped operating microscope with integrated spectral domain optical coherence tomography apparatus was used for standard middle-ear surgical procedures.

Results:

This optical coherence tomography investigation enabled in vivo visualisation and documentation of the annular ligament, the different layers of the footplate and the inner-ear structures, both in non-fixed and fixed stapes footplates. In cases of otosclerosis and tympanosclerosis, an inhomogeneous and irregularly thickened footplate was found, in contrast to the appearance of non-fixed footplates. In both fixed and non-fixed footplates, there was a lack of visualisation of the border between the footplate and the otic capsule.

Conclusions:

Investigation of the relatively new technology of optical coherence tomography indicated that this imaging modality may assist the ear surgeon to assess the oval window niche intra-operatively.

Information

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 2009

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