4 March 2014 3D optical coherence tomography image registration for guiding cochlear implant insertion
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Proceedings Volume 8926, Photonic Therapeutics and Diagnostics X; 89261Z (2014) https://doi.org/10.1117/12.2040594
Event: SPIE BiOS, 2014, San Francisco, California, United States
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.
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Gyeong-Woo Cheon, Hyun-Woo Jeong, Preetham Chalasani, Wade W. Chien, Iulian Iordachita, Russell Taylor, John Niparko, Jin U. Kang, "3D optical coherence tomography image registration for guiding cochlear implant insertion", Proc. SPIE 8926, Photonic Therapeutics and Diagnostics X, 89261Z (4 March 2014); doi: 10.1117/12.2040594; https://doi.org/10.1117/12.2040594
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