Abstract
Optical coherence tomography (OCT) is a contactless and non-invasive imaging technique. Due to the high resolution of some 10 µm and the penetration depth of 1-2 mm in scattering tissue, OCT closes the gap between microscopy and sonography. Here, we present a GRIN-based endoscopic OCT (eOCT) system for middle ear diagnostics. EOCT combines the benefit of endoscopic imaging and the advantage of morphological and functional investigation of the tympanic membrane (TM). The eOCT system has a working distance of 10 mm, which results in a field-of-view of 10 mm. This allows a full three-dimensional visualization of the TM and surrounding tissue. In addition, the oscillation of the TM can be measured spatially resolved and in the frequency range between 500 Hz and 5000 Hz with 125 Hz resolution, which is realized by phase-resolved Doppler-OCT. First clinical results are demonstrated for one selected cases, a middle ear effusion.
© 2019 SPIE/OSA
PDF ArticleMore Like This
Anke Burkhardt, Julia Walther, Peter Cimalla, Matthias Bornitz, and Edmund Koch
80910Y European Conference on Biomedical Optics (ECBO) 2011
Dan MacDougall, Thomas Landry, Manohar Bance, Jeremy A Brown, and Robert B A Adamson
FW4E.3 Frontiers in Optics (FiO) 2015
Dan MacDougall, Joshua Farrell, Manohar Bance, Nicholas Jufas, and Robert B A Adamson
JTu3A.47 Cancer Imaging and Therapy (Cancer) 2016