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Proceedings Paper

Sensing and three-dimensional imaging of cochlea and surrounding temporal bone using swept source high-speed optical coherence tomography
Author(s): Mingtao Zhao; Wade W. Chien; Russ Taylor; Iulian Iordachita; Yong Huang; John Niparko; Jin U. Kang
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Paper Abstract

We describe a novel dual-functional optical coherence tomography (OCT) system with both a fiber probe using a sapphire ball lens for cross-sectional imaging and sensing, and a 3-D bulk scanner for 3-D OCT imaging. A theoretical sensitivity model for Common Path (CP)-OCT was proposed to assess its optimal performance based on an unbalanced photodetector configuration. A probe design with working distances (WD) 415μm and lateral resolution 11 μm was implemented with sensitivity up to 88dB. To achieve high-speed data processing and real-time three-dimensional visualization, we use graphics processing unit (GPU) based real-time signal processing and visualization to boost the computing performance of swept source optical coherence tomography. Both the basal turn and facial nerve bundles inside the cadaveric human cochlea temporal bone can be clearly identified and 3D images can be rendered with the OCT system, which was integrated with a flexible robotic arm for robotically assisted microsurgery.

Paper Details

Date Published: 20 March 2013
PDF: 6 pages
Proc. SPIE 8571, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII, 857121 (20 March 2013); doi: 10.1117/12.2007069
Show Author Affiliations
Mingtao Zhao, Johns Hopkins Univ. (United States)
Wade W. Chien, Johns Hopkins Univ. (United States)
Russ Taylor, Johns Hopkins Univ. (United States)
Iulian Iordachita, Johns Hopkins Univ. (United States)
Yong Huang, Johns Hopkins Univ. (United States)
John Niparko, Johns Hopkins Univ. (United States)
Jin U. Kang, Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 8571:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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