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Proceedings Paper

Interstitial Doppler optical coherence tomography
Author(s): Victor X. D. Yang; Linda Mao; Nigel Munce; Beau Standish; Norman E. Marcon M.D.; Walter Kucharczyk; Brian C. Wilson; I. Alex Vitkin
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Paper Abstract

Doppler optical coherence tomography (OCT) can image tissue structure and blood flow at micrometer-scale resolution, with limited imaging penetration depth. We report a novel linear-scanning needle-based Doppler OCT system using angle-polished gradient-index or ball-lensed fibers. A prototype system using a 19-guage (diameter ~0.9 mm) echo-genic needle is constructed and demonstrates in vivo imaging of bidirectional blood flow in rat leg and abdominal cavity. To our knowledge this is the first demonstration of Doppler OCT through a needle probe in interstitial applications to visualize deeply situated microcirculation.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623868
Show Author Affiliations
Victor X. D. Yang, Univ. of Toronto (Canada)
Linda Mao, Univ. of Toronto (Canada)
Nigel Munce, Univ. of Toronto (Canada)
Beau Standish, Univ. of Toronto (Canada)
Norman E. Marcon M.D., St. Michael's Hospital (Canada)
Walter Kucharczyk, Univ. of Toronto (Canada)
Brian C. Wilson, Univ. of Toronto (Canada)
I. Alex Vitkin, Univ. of Toronto (Canada)

Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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