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Proceedings Paper

An approach to OCT-based microvascular imaging using reference-free processing of complex valued B-scans
Author(s): Lev A. Matveev; Grigory V. Gelikonov; Alexandr L. Matveyev; Alexander A. Moiseev; Sergey Ksenofontov; Valentin M. Gelikonov; Marina A. Sirotkina; Natalia L. Buyanova; Natalia D. Gladkova; Valentin Demidov; Alex Vitkin; Vladimir Yu. Zaitsev
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Paper Abstract

We describe a modification of a recently proposed unconventional OCT approach to 3D microvasculature imaging based on high-pass filtering of B-scans in the lateral direction. The B-scans are acquired in M-mode-like regime with highly overlapped A-scans. The goal of the described modification is to suppress non-fluid artifacts in the resultant microcirculation images. The modification is based on the amplitude normalization procedure of complex-valued OCT signal before subsequent processing. This allows one to efficiently suppress imaging degradation due to the influence of very bright spots/lines (e.g. from hairs on the surface) and retain images of real flows inside the tissue without any artificial cut-off of the surface signal, or application of pixel-intensity thresholds, or signal classification approaches.

Paper Details

Date Published: 20 July 2015
PDF: 5 pages
Proc. SPIE 9541, Optical Coherence Imaging Techniques and Imaging in Scattering Media, 954106 (20 July 2015); doi: 10.1117/12.2184937
Show Author Affiliations
Lev A. Matveev, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Nizhny Novgorod State Univ. (Russian Federation)
Grigory V. Gelikonov, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Alexandr L. Matveyev, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Alexander A. Moiseev, Institute of Applied Physics (Russian Federation)
Sergey Ksenofontov, Institute of Applied Physics (Russian Federation)
Valentin M. Gelikonov, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Nizhny Novgorod State Univ. (Russian Federation)
Marina A. Sirotkina, Nizhny Novgorod State Medical Academy (Russian Federation)
Natalia L. Buyanova, Nizhny Novgorod State Medical Academy (Russian Federation)
Natalia D. Gladkova, Nizhny Novgorod State Medical Academy (Russian Federation)
Valentin Demidov, Univ. of Toronto (Canada)
Alex Vitkin, Nizhny Novgorod State Medical Academy (Russian Federation)
Univ. of Toronto (Canada)
Vladimir Yu. Zaitsev, Institute of Applied Physics (Russian Federation)
Nizhny Novgorod State Medical Academy (Russian Federation)
Nizhny Novgorod State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 9541:
Optical Coherence Imaging Techniques and Imaging in Scattering Media
Brett E. Bouma; Maciej Wojtkowski, Editor(s)

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