Laser speckle technique for monitoring of blood and lymph flow

Ivan V. Fedosov; Valery V. Tuchin

doi:10.1117/12.571997

29 July 2004 Laser speckle technique for monitoring of blood and lymph flow

Ivan V. Fedosov, Valery V. Tuchin

Proceedings Volume 5486, ALT'03 International Conference on Advanced Laser Technologies: Biomedical Optics; (2004) https://doi.org/10.1117/12.571997
Event: ALT'03 International Conference on Advanced Laser Technologies: Biomedical Optics, 2003, Silsoe, United Kingdom

Abstract

Laser speckle technique developed for monitoring of micro scale blood and lymph flows is described and discussed. It is based on the space-time correlation properties of dynamic speckle field formed by coherent light scattered by capillary flow of blood or lymph. As it was proved experimentally, the estimating of cross-correlation of speckle-field intensity fluctuations recorded in two different point allows for measurement of flow velocity and flow direction discrimination. Developed technique was applied for investigation of push-pull dynamics of lymph flow in rat mesentery. The results of experiments with models of bioflows and in vivo measurements are presented.

Citation Download Citation

Ivan V. Fedosov and Valery V. Tuchin "Laser speckle technique for monitoring of blood and lymph flow", Proc. SPIE 5486, ALT'03 International Conference on Advanced Laser Technologies: Biomedical Optics, (29 July 2004); https://doi.org/10.1117/12.571997

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