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Proceedings Paper

Passive endoscopic polarization sensitive optical coherence tomography with completely fiber based optical components
Author(s): Lucas Cahill; Anthony M. D. Lee; Hamid Pahlevaninezhad; Samson Ng; Calum E. MacAulay; Catherine Poh; Pierre Lane
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Paper Abstract

Polarization Sensitive Optical Coherence Tomography (PSOCT) is a functional extension of Optical Coherence Tomography (OCT) that is sensitive to well-structured, birefringent tissue such as scars, smooth muscle and cartilage. In this work, we present a novel completely fiber based swept source PSOCT system using a fiber-optic rotary pullback catheter. This PSOCT implementation uses only passive optical components and requires no calibration while adding minimal additional cost to a standard structural OCT imaging system. Due to its complete fiber construction, the system can be made compact and robust, while the fiber-optic catheter allows access to most endoscopic imaging sites. The 1.5mm diameter endoscopic probe can capture 100 frames per second at pullback speeds up to 15 mm/s allowing rapid traversal of large imaging fields. We validate the PSOCT system with known birefringent tissues and demonstrate in vivo PSOCT imaging of human oral scar tissue.

Paper Details

Date Published: 2 March 2015
PDF: 8 pages
Proc. SPIE 9304, Endoscopic Microscopy X; and Optical Techniques in Pulmonary Medicine II, 930413 (2 March 2015); doi: 10.1117/12.2077820
Show Author Affiliations
Lucas Cahill, The BC Cancer Agency Research Ctr. (Canada)
Anthony M. D. Lee, The BC Cancer Agency Research Ctr. (Canada)
Hamid Pahlevaninezhad, The BC Cancer Agency Research Ctr. (Canada)
Samson Ng, Univ. of British Columbia (Canada)
Calum E. MacAulay, The BC Cancer Agency Research Ctr. (Canada)
Catherine Poh, The BC Cancer Agency Research Ctr. (Canada)
Pierre Lane, The BC Cancer Agency Research Ctr. (Canada)


Published in SPIE Proceedings Vol. 9304:
Endoscopic Microscopy X; and Optical Techniques in Pulmonary Medicine II
Melissa J. Suter; Stephen Lam; Matthew Brenner; Guillermo J. Tearney; Thomas D. Wang, Editor(s)

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