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Proceedings Paper

Novel real-time volumetric tool segmentation algorithm for intraoperative microscope integrated OCT (Conference Presentation)
Author(s): Christian Viehland; Brenton Keller; Oscar Carrasco-Zevallos; David Cunefare; Liangbo Shen; Cynthia Toth; Sina Farsiu; Joseph A. Izatt
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Paper Abstract

Optical coherence tomography (OCT) allows for micron scale imaging of the human retina and cornea. Current generation research and commercial intrasurgical OCT prototypes are limited to live B-scan imaging. Our group has developed an intraoperative microscope integrated OCT system capable of live 4D imaging. With a heads up display (HUD) 4D imaging allows for dynamic intrasurgical visualization of tool tissue interaction and surgical maneuvers. Currently our system relies on operator based manual tracking to correct for patient motion and motion caused by the surgeon, to track the surgical tool, and to display the correct B-scan to display on the HUD. Even when tracking only bulk motion, the operator sometimes lags behind and the surgical region of interest can drift out of the OCT field of view. To facilitate imaging we report on the development of a fast volume based tool segmentation algorithm. The algorithm is based on a previously reported volume rendering algorithm and can identify both the tool and retinal surface. The algorithm requires 45 ms per volume for segmentation and can be used to actively place the B-scan across the tool tissue interface. Alternatively, real-time tool segmentation can be used to allow the surgeon to use the surgical tool as an interactive B-scan pointer.

Paper Details

Date Published: 26 April 2016
PDF: 1 pages
Proc. SPIE 9697, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX, 969702 (26 April 2016); doi: 10.1117/12.2214591
Show Author Affiliations
Christian Viehland, Duke Univ. (United States)
Brenton Keller, Duke Univ. (United States)
Oscar Carrasco-Zevallos, Duke Univ. (United States)
David Cunefare, Duke Univ. School of Medicine (United States)
Liangbo Shen, Duke Univ. (United States)
Cynthia Toth, Duke Univ. School of Medicine (United States)
Sina Farsiu, Duke Univ. (United States)
Joseph A. Izatt, Duke Univ. (United States)

Published in SPIE Proceedings Vol. 9697:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)

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