Optical coherence tomography as a guide for cochlear implant surgery?

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

*Corresponding author for this work


To assess the potential use of optical coherence tomography (OCT) in cochlear implant surgery, OCT was applied in human temporal bones before cochleostomy. The question was whether OCT might provide information about the cochlear topography, especially about the site of the scala tympani. OCT was carried out on human temporal bone preparations, in which the cochleostomy was performed leaving the membranous labyrinth and the fluid-filled inner ear intact. A specially equipped operating microscope with integrated OCT prototype was used. Spectral-domain (SD)-OCT was used for all investigations. On all scans, OCT supplied information about inner ear structures, such as scala tympani, scala vestibuli while the membranous labyrinth was still intact. In the fresh temporal bone the scala media, basilar membrane and the Reissner's membrane were identified. This OCT study clearly documents the possibility to identify inner ear structures, especially the scala tympani without opening its enveloping membranes. These findings may have an impact on cochlear implant surgery, especially as an orientation guide to localize the scala tympani precisely before opening the fluid filled inner ear.

Original languageEnglish
Title of host publicationPhotonic Therapeutics and Diagnostics IV
Number of pages6
Publication date08.02.2008
Article number68421F
ISBN (Print)978-081947017-1
Publication statusPublished - 08.02.2008
EventPhotonic Therapeutics and Diagnostics IV - San Jose, United States
Duration: 19.01.200819.01.2008
Conference number: 71739

Research Areas and Centers

  • Academic Focus: Biomedical Engineering


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