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Proceedings Paper

Optical properties of human whole blood: changes due to slow heating
Author(s): Annika M.K. Nilsson; Gerald W. Lucassen; Wim Verkruysse; Stefan Andersson-Engels; Martin J. C. van Gemert
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Paper Abstract

Changes of coefficients of scattering ((mu) s), absorption ((mu) a) and average cosine of scattering (g) depending on shear rate of moving whole blood are described. The most interesting result is observed nonlinear dependence between absorption coefficient and shear rate of moving blood with maximum of (mu) a at 135 s-1 which is close connected with erythrocytes orientation and deformation in the cuvette. Phenomenon takes place for 488 and 587 nm within blood layer thickness form 100 to 200 micrometers . Theoretical analysis for angular dependence of coefficient of absorption whole blood from erythrocyte orientation and is presented.

Paper Details

Date Published: 5 December 1996
PDF: 11 pages
Proc. SPIE 2923, Laser-Tissue Interaction and Tissue Optics II, (5 December 1996); doi: 10.1117/12.260746
Show Author Affiliations
Annika M.K. Nilsson, Lund Institute of Technology (Sweden)
Gerald W. Lucassen, Univ. of Amsterdam (Netherlands)
Wim Verkruysse, Univ. of Amsterdam (United States)
Stefan Andersson-Engels, Lund Institute of Technology (Sweden)
Martin J. C. van Gemert, Univ. of Amsterdam (Netherlands)

Published in SPIE Proceedings Vol. 2923:
Laser-Tissue Interaction and Tissue Optics II
Hansjoerg Albrecht; Guy P. Delacretaz; Thomas H. Meier; Rudolf W. Steiner; Lars Othar Svaasand, Editor(s)

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