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Optical Properties of Circulating Human Blood in the Wavelength Range 400–2500 nm

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Roggan, André, Friebel, Moritz, Dörschel, Klaus, Hahn, Andreas, Müller, Gerhard·1999·Journal of Biomedical Optics

Abstract

Knowledge about the optical properties μa,μs, and g of human blood plays an important role for many diagnostic and therapeutic applications in laser medicine and medical diagnostics. They strongly depend on physiological parameters such as oxygen saturation, osmolarity, flow conditions, haematocrit, etc. The integrating sphere technique and inverse Monte Carlo simulations were applied to measure μa,μs, and g of circulating human blood. At 633 nm the optical properties of human blood with a haematocrit of 10% and an oxygen saturation of 98% were found to be 0.210±0.002 mm-1 for μa,77.3±0.5 mm-1 for μs, and 0.994±0.001 for the g factor. An increase of the haematocrit up to 50% lead to a linear increase of absorption and reduced scattering. Variations in osmolarity and wall shear rate led to changes of all three parameters while variations in the oxygen saturation only led to a significant change of the absorption coefficient. A spectrum of all three parameters was measured in the wavelength range 400-2500 nm for oxygenated and deoxygenated blood, showing that blood absorption followed the absorption behavior of haemoglobin and water. The scattering coefficient decreased for wavelengths above 500 nm with approximately λ-1.7; the g factor was higher than 0.9 over the whole wavelength range. © 1999 Society of Photo-Optical Instrumentation Engineers.

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Metadata

Authors
Roggan, A., Friebel, M., Dörschel, K., Hahn, A., & Müller, G.
Venue
Journal of Biomedical Optics
Published
1999
Volume
4
Issue
1
Pages
36
ISSN
1083-3668 (ISSN-L)
OpenAlex
W1973846615
Cited by
819
References
11
FWCI
11.85
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Optical Properties of Circulating Human Blood in the Wavelength Range 400–2500 nm. https://app.cochat.ai/papers/10.1117/1.429919
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Roggan, A., Friebel, M., Dörschel, K., Hahn, A., & Müller, G. (1999). Optical Properties of Circulating Human Blood in the Wavelength Range 400–2500 nm. Journal of Biomedical Optics. https://doi.org/10.1117/1.429919

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