This article is cited in 17 papers

Optical technologies in biophysics and medicine

Speckle-correlation analysis of the microcapillary blood circulation in nail bed

M. A. Vilensky^a, D. N. Agafonov^a, D. A. Zimnyakov^bc, V. V. Tuchin^ac, R. A. Zdrazhevskii<sup>bc

a</sup> Saratov State University
^b Yuri Gagarin State Technical University of Saratov
^c Institute of Precision Mechanics and Control, Russian Academy of Sciences, Saratov

Abstract: We present the results of the experimental studies of the possibility of monitoring the blood microcirculation in human finger nail bed with application of speckle-correlation analysis, based on estimating the contrast of time-averaged dynamic speckles. The hemodynamics at normal blood circulation and under conditions of partially suppressed blood circulation is analysed. A microscopic analysis is performed to visualise the structural changes in capillaries that are caused by suppressing blood circulation. The problems and prospects of speckle-correlation monitoring of the nail bed microhemodynamics under laboratory and clinical conditions are discussed.

PACS: 42.62.Be, 42.30.Ms, 87.84.M-

Received: 17.03.2011

 English version: Quantum Electronics, 2011, 41:4, 324–328

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