Optical coherence tomography of the oval window niche

T. Just*, E. Lankenau, G. Hüttmann, H. W. Pau

*Corresponding author for this work
18 Citations (Scopus)


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.

Original languageEnglish
JournalJournal of Laryngology and Otology
Issue number6
Pages (from-to)603-608
Number of pages6
Publication statusPublished - 06.2009

Research Areas and Centers

  • Academic Focus: Biomedical Engineering


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