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Proceedings Paper

3D optical coherence tomography image registration for guiding cochlear implant insertion
Author(s): Gyeong-Woo Cheon; Hyun-Woo Jeong; Preetham Chalasani; Wade W. Chien; Iulian Iordachita; Russell Taylor; John Niparko; Jin U. Kang
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Paper Abstract

In cochlear implant surgery, an electrode array is inserted into the cochlear canal to restore hearing to a person who is profoundly deaf or significantly hearing impaired. One critical part of the procedure is the insertion of the electrode array, which looks like a thin wire, into the cochlear canal. Although X-ray or computed tomography (CT) could be used as a reference to evaluate the pathway of the whole electrode array, there is no way to depict the intra-cochlear canal and basal turn intra-operatively to help guide insertion of the electrode array. Optical coherent tomography (OCT) is a highly effective way of visualizing internal structures of cochlea. Swept source OCT (SSOCT) having center wavelength of 1.3 micron and 2D Galvonometer mirrors was used to achieve 7-mm depth 3-D imaging. Graphics processing unit (GPU), OpenGL, C++ and C# were integrated for real-time volumetric rendering simultaneously. The 3D volume images taken by the OCT system were assembled and registered which could be used to guide a cochlear implant. We performed a feasibility study using both dry and wet temporal bones and the result is presented.

Paper Details

Date Published: 4 March 2014
PDF: 6 pages
Proc. SPIE 8926, Photonic Therapeutics and Diagnostics X, 89261Z (4 March 2014); doi: 10.1117/12.2040594
Show Author Affiliations
Gyeong-Woo Cheon, Johns Hopkins Univ. (United States)
Hyun-Woo Jeong, Johns Hopkins Univ. (United States)
Preetham Chalasani, Johns Hopkins Univ. (United States)
Wade W. Chien, Johns Hopkins Univ. (United States)
Iulian Iordachita, Johns Hopkins Univ. (United States)
Russell Taylor, 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. 8926:
Photonic Therapeutics and Diagnostics X
Bernard Choi; Hyun Wook Kang; Brian J. F. Wong M.D.; Guillermo J. Tearney M.D.; Andreas Mandelis; Nikiforos Kollias; Kenton W. Gregory M.D.; Justus F. Ilgner M.D.; Haishan Zeng; Laura Marcu, Editor(s)

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