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Investigation of flows with complex geometry using coherence domain tomography
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Paper Abstract

The experimental methods of Doppler OCT are applied for two-dimensional flow mapping of highly scattering fluid in a converging flow to demonstrate non-invasive methods of velocity distribution mapping before and after the entry to a lumen of smaller diameter. A flow with complex geometry is scanned with ~10x10x10 μm3 spatial resolution. Velocity profiles of different shapes were obtained before and after the entry. Blunted, triangular and parabolic velocity profiles as well as structural images of the converging flow and images of a specific velocity are demonstrated. Broadening of Doppler spectra obtained with slow and rapid scanning optical delay lines are compared. Structural images of in vivo human finger blood vessels before and after optical clearing using rapid scanning optical delay line are presented.

Paper Details

Date Published: 28 May 2004
PDF: 7 pages
Proc. SPIE 5330, Complex Dynamics, Fluctuations, Chaos, and Fractals in Biomedical Photonics, (28 May 2004); doi: 10.1117/12.529662
Show Author Affiliations
Sergey G. Proskurin, Cranfield Univ. at Silsoe (United Kingdom)
Yonghong He, Cranfield Univ. at Silsoe (United Kingdom)
Ruikang K. Wang, Cranfield Univ. at Silsoe (United Kingdom)

Published in SPIE Proceedings Vol. 5330:
Complex Dynamics, Fluctuations, Chaos, and Fractals in Biomedical Photonics
Valery V. Tuchin, Editor(s)

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