Optical properties of human whole blood: changes due to slow heating

Annika M.K. Nilsson; Gerald W. Lucassen; Wim Verkruysse; Stefan Andersson-Engels; Martin J. C. van Gemert

doi:10.1117/12.260746

5 December 1996 Optical properties of human whole blood: changes due to slow heating

Annika M.K. Nilsson, Gerald W. Lucassen, Wim Verkruysse, Stefan Andersson-Engels, Martin J. C. van Gemert

Proceedings Volume 2923, Laser-Tissue Interaction and Tissue Optics II; (1996) https://doi.org/10.1117/12.260746
Event: BiOS Europe '96, 1996, Vienna, Austria

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.

Citation Download Citation

Annika M.K. Nilsson, Gerald W. Lucassen, Wim Verkruysse, Stefan Andersson-Engels, and Martin J. C. van Gemert "Optical properties of human whole blood: changes due to slow heating", Proc. SPIE 2923, Laser-Tissue Interaction and Tissue Optics II, (5 December 1996); https://doi.org/10.1117/12.260746

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