Monitoring of lymph flow in microvessels by biomicroscopy and speckle-interferometry

Ekateryna I. Galanzha; Anastasiya V. Solov'eva; Gregory E. Brill; Sergey S. Ulyanov; Valery V. Tuchin

doi:10.1117/12.427896

23 May 2001 Monitoring of lymph flow in microvessels by biomicroscopy and speckle-interferometry

Ekateryna I. Galanzha, Anastasiya V. Solov'eva, Gregory E. Brill, Sergey S. Ulyanov, Valery V. Tuchin

Proceedings Volume 4251, Coherence Domain Optical Methods in Biomedical Science and Clinical Applications V; (2001) https://doi.org/10.1117/12.427896
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

In the paper lymph flow in microvessels by two methods in norm and under influence of vasoactive drugs: N-nitro-L- Arginine (L-NNA, 10^-4M and dimethyl sufoxide (DMSO, 30%) was studied. We measured absolute linear flow velocity by microscopic method and parameter proportional to velocity (M₁) using the speckle-interferometry. Also other parameters of lymph and blood microcirculation were measured. The lymph flow differs from blood flow. The average flow velocity for the lymphatics is more than for the blood microvessels. The negative correlation between blood flow velocity and diameter of vessel absents in lymphatics. The phase contractions contribute to the lymph flow. The M₁ in contracting lymphatics are of the same values in different vessels. But the non-contracting microvessels has very varying indexes of M₁. Probably the wall movements during phasic contractions led to the change of speckle signals. The action of vasoactive drugs (L-NNA and DMSO) stimulates the lymph flow and phasic activity in microvessels of rat mesentery. The effects of L-NNA and DMSO on diameters are different. The constriction of microvessels prevailed at the DMSO application. The dilatation dominated at the L-NNA action.

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Ekateryna I. Galanzha, Anastasiya V. Solov'eva, Gregory E. Brill, Sergey S. Ulyanov, and Valery V. Tuchin "Monitoring of lymph flow in microvessels by biomicroscopy and speckle-interferometry", Proc. SPIE 4251, Coherence Domain Optical Methods in Biomedical Science and Clinical Applications V, (23 May 2001); https://doi.org/10.1117/12.427896

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