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Proceedings Paper

Speckle variance optical coherence tomography using an SS-OCT system and an extended k-sampling clock
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Paper Abstract

is vacant or filled with material having a refractive index different from the tissue, the observed structure is deformed significantly. This deformation artifact can be minimized by filling the cavity with liquid having a refractive index nearly equal to the tissue. Furthermore, by using dynamical OCT method, cavity image intensity can be significantly enhanced compared with the tissue. This image contrast improvement may allow imaging of cavity structures inside deep in tissues. In this paper, we demonstrate good contrast of speckle variance OCT imaging of phantoms. A trial of deep OCT imaging is introduced with which we can extend the OCT depth range to 27.5 mm with a commercial swept source, while the preinstalled k-clock allows only the OCT depth range of 5 mm.

Paper Details

Date Published: 17 February 2017
PDF: 8 pages
Proc. SPIE 10053, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI, 100532P (17 February 2017); doi: 10.1117/12.2250717
Show Author Affiliations
Reiko Yoshimura, Kitasato Univ. (Japan)
Dong-Hak Choi, Kitasato Univ. (Japan)
Kohji Ohbayashi, Advanced Imaging Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 10053:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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