Analysis of distortions in the velocity profiles of suspension flows inside a light-scattering medium upon their reconstruction from the optical coherence Doppler tomograph signal

Journal Article · Wed Nov 30 00:00:00 EST 2005 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2005V035N11ABEH012792· OSTI ID:21470852

Bykov, A V; Kirillin, M Yu; Priezzhev, A V ^[1]

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1. Department of Physics, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)

Model signals from one and two plane flows of a particle suspension are obtained for an optical coherence Doppler tomograph (OCDT) by the Monte-Carlo method. The optical properties of particles mimic the properties of non-aggregating erythrocytes. The flows are considered in a stationary scattering medium with optical properties close to those of the skin. It is shown that, as the flow position depth increases, the flow velocity determined from the OCDT signal becomes smaller than the specified velocity and the reconstructed profile extends in the direction of the distant boundary, which is accompanied by the shift of its maximum. In the case of two flows, an increase in the velocity of the near-surface flow leads to the overestimated values of velocity of the reconstructed profile of the second flow. Numerical simulations were performed by using a multiprocessor parallel-architecture computer. (laser applications in medicine)

• OSTI ID: 21470852
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 35, Issue 11; Other Information: DOI: 10.1070/QE2005v035n11ABEH012792; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPUTERIZED SIMULATION
COMPUTERS
DOPPLER EFFECT
ERYTHROCYTES
LIGHT SCATTERING
MONTE CARLO METHOD
OPTICAL PROPERTIES
PARALLEL PROCESSING
PARTICLES
SIGNALS
SKIN
SUSPENSIONS
TOMOGRAPHY
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY
BODY FLUIDS
CALCULATION METHODS
DIAGNOSTIC TECHNIQUES
DISPERSIONS
MATERIALS
ORGANS
PHYSICAL PROPERTIES
PROGRAMMING
SCATTERING
SIMULATION