Towards automatic identification of middle ear structures in endoscopic OCT

Jonas Golde; Joseph Morgenstern; Peng Liu; Steffen Ossmann; Lars Kirsten; Svea Steuer; Stefanie Speidel; Edmund Koch; Sebastian Bodenstedt; Marcus Neudert

doi:10.1117/12.2671026

11 August 2023 Towards automatic identification of middle ear structures in endoscopic OCT

Jonas Golde, Joseph Morgenstern, Peng Liu, Steffen Ossmann, Lars Kirsten, Svea Steuer, Stefanie Speidel, Edmund Koch, Sebastian Bodenstedt, Marcus Neudert

Author Affiliations +

Proceedings Volume 12632, Optical Coherence Imaging Techniques and Imaging in Scattering Media V; 126320I (2023) https://doi.org/10.1117/12.2671026
Event: European Conferences on Biomedical Optics, 2023, Munich, Germany

Abstract

Endoscopic Optical Coherence Tomography (OCT) enables the assessment of the eardrum and the middle ear in vivo. However, revealing the ossicles is often limited due to shadowing effects of preceding structures and the 3D impression is difficult to interpret. To compare the identified middle ear structures, OCT and cone-beam CT of a patient were spatially aligned and showed a good agreement in locating malleus and the promontory wall. As CT imaging uses ionizing radiation and is thus limited in application, we furthermore provide a concept how radiology can be utilized as a priori knowledge for OCT imaging. Therefore, a statistical shape model derived from μCT data of temporal bone specimens was fitted to in vivo OCT measurements, potentially providing a real-time augmentation of endoscopic OCT for middle ear diagnostics in the future.

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Jonas Golde, Joseph Morgenstern, Peng Liu, Steffen Ossmann, Lars Kirsten, Svea Steuer, Stefanie Speidel, Edmund Koch, Sebastian Bodenstedt, and Marcus Neudert "Towards automatic identification of middle ear structures in endoscopic OCT", Proc. SPIE 12632, Optical Coherence Imaging Techniques and Imaging in Scattering Media V, 126320I (11 August 2023); https://doi.org/10.1117/12.2671026

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KEYWORDS

Optical coherence tomography

Ear

Endoscopy

Biological imaging

Computed tomography

Data modeling

Signal processing

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