Investigation of lymph flow dynamics using methods of speckle interferometry

Andrey A. Bednov; Sergey S. Ulyanov; Valery V. Tuchin; Gregory E. Brill; Ekateryna I. Galanzha

doi:10.1117/12.276192

10 June 1997 Investigation of lymph flow dynamics using methods of speckle interferometry

Andrey A. Bednov, Sergey S. Ulyanov, Valery V. Tuchin, Gregory E. Brill, Ekateryna I. Galanzha

Proceedings Volume 3177, CIS Selected Papers Nonlinear Dynamics of Laser and Optical Systems; (1997) https://doi.org/10.1117/12.276192
Event: Nonlinear Dynamics of Laser and Optical Systems, 1997, Russia, Russian Federation

Abstract

For some human diseases both the blood and lymph microcirculation parameters change. These parameters are of great importance in diagnostics. As distinct from blood flow from the lymph motion is more complicated and diverse. Lymph flow in microvessels is non-stationary and randomly varies in time. At present, the existing measuring methods of these flows are not fully developed and are mostly of qualitative character. In this paper the blood and the lymph motion have been considered from the viewpoint of nonlinear dynamics. The speckle-interferometric method has been proposed for the investigation of the dynamic characteristics of biofluids. The method has been applied in the investigation of blood and lymph flows in microvessels. Using the method of the focused Gaussian beam diffraction, the following parameters were defined: V that is the value characterizing the time- averaged velocity of biofluid and (Sigma) _V that is the parameter indicating the deviation degree of the spectral envelope from the Gaussian curve. The value of (Sigma) _V contains an information about the velocity range in the flow and, besides, indicates the spatial-temporal velocity changes in region being investigated. Investigations of the lymph flow dynamics also have been carried out under the influence of the lymphotropic agent. It has been shown that lymph vessels may act at different stages when both the structure of the lymph flow and its temporal dynamics change qualitatively.

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Andrey A. Bednov, Sergey S. Ulyanov, Valery V. Tuchin, Gregory E. Brill, and Ekateryna I. Galanzha "Investigation of lymph flow dynamics using methods of speckle interferometry", Proc. SPIE 3177, CIS Selected Papers Nonlinear Dynamics of Laser and Optical Systems, (10 June 1997); https://doi.org/10.1117/12.276192

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KEYWORDS

Lymphatic system

Blood

Speckle interferometry

Blood circulation

Diagnostics

Diffraction

Gaussian beams

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