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Current Directions in Biomedical Engineering

Joint Journal of the German Society for Biomedical Engineering in VDE and the Austrian and Swiss Societies for Biomedical Engineering

Editor-in-Chief: Dössel, Olaf

Editorial Board: Augat, Peter / Buzug, Thorsten M. / Haueisen, Jens / Jockenhoevel, Stefan / Knaup-Gregori, Petra / Kraft, Marc / Lenarz, Thomas / Leonhardt, Steffen / Malberg, Hagen / Penzel, Thomas / Plank, Gernot / Radermacher, Klaus M. / Schkommodau, Erik / Stieglitz, Thomas / Urban, Gerald A.

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2364-5504
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Imaging of the human tympanic membrane by endoscopic optical coherence tomography

Martin Schindler
  • Corresponding author
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Anesthesiology and Critical Care Medicin, Clinical Sensoring and Monitoring, Fetscherstr. 74, 01307 Dresden, Germany
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/ Lars Kirsten
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Anesthesiology and Critical Care Medicin, Clinical Sensoring and Monitoring, 01307 Dresden, Germany
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/ Joseph Morgenstern
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Otorhinolaryngology, 01307 Dresden, Germany
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/ Jonas Golde
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Anesthesiology and Critical Care Medicin, Clinical Sensoring and Monitoring, 01307 Dresden, Germany
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/ Mikael Erkkilä
  • Medical University of Vienna, Center for Medical Physics and Biomedical Engineering, A-1090 Vienna, Austria
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/ Julia Walther
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Anesthesiology and Critical Care Medicin, Clinical Sensoring and Monitoring/Medical Physics and Biomedical Engineering, 01307 Dresden, Germany
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/ Max Kemper
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Otorhinolaryngology, 01307 Dresden, Germany
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/ Matthias Bornitz
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Otorhinolaryngology, 01307 Dresden, Germany
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/ Marcus Neudert
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Otorhinolaryngology, 01307 Dresden, Germany
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/ Thomas Zahnert
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Otorhinolaryngology, 01307 Dresden, Germany
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/ Edmund Koch
  • TU Dresden, Faculty of Medicine Carl Gustav Carus, Anesthesiology and Critical Care Medicin, Clinical Sensoring and Monitoring, 01307 Dresden, Germany
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Published Online: 2018-09-22 | DOI: https://doi.org/10.1515/cdbme-2018-0074

Abstract

Endoscopic optical coherence tomography is a non-invasive and contactless imaging technique based on white light interferometry. It enables high-resolution three-dimensional imaging of scattering tissue up to a depth of about 2 mm. In addition, Doppler-OCT can detect sub-resolution movements. These features can be used to examine the tympanic membrane, the surrounding tissue and nearby areas of the tympanic cavity. For this purpose, we present an endoscopic OCT system, which provides access to the tympanic membrane. The design of the endoscope is based on a gradientindex (GRIN) lens system. This allows a broad field of view and a large working distance. An additional VIS beam path allows visual imaging and orientation inside the auditory canal. Therefore, illumination fibers are attached a round the GRIN-system. The resulting endoscope has a length of 55 mm and a diameter of 3.5 mm. By attaching an earphone and a probe microphone, the oscillation of the tympanic membrane can be measured under acoustic stimulation. With the endoscopic OCT system, we provide an examination tool for the diagnosis of a broad number of diseases like conductive hearing loss.

Keywords: optical coherenc tomography; tympanic membran; endoscope

About the article

Published Online: 2018-09-22

Published in Print: 2018-09-01


Citation Information: Current Directions in Biomedical Engineering, Volume 4, Issue 1, Pages 305–308, ISSN (Online) 2364-5504, DOI: https://doi.org/10.1515/cdbme-2018-0074.

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