Measurement of Tissue Optical Properties: Methods and Theories

  • Brian C. Wilson
Part of the Lasers, Photonics, and Electro-Optics book series (LPEO)


In this chapter, the various experimental techniques which have been developed to measure the optical scattering and absorption properties of tissues are discussed, together with the theory underlying these methods. The fundamental optical properties of interest are the absorption coefficient, µ a , scattering coefficient, µ s , total attenuation coefficient, µ t = µ a + µ s , scattering phase function, p(cosθ), or scattering anisotropy, g reduced scattering coefficient, µ′ s = µ s (1 − g) and the tissue refractive index, n. These optical properties are parameters in the radiation transport equation which describes the propagation of light in tissue (see Chapters 2, 3, and 6). Another parameter often measured is the effective attenuation coefficient, µ eff , which describes the exponential attenuation of scattered light with depth in tissue.


Diffuse Reflectance Fluence Rate Diffusion Theory Photoacoustic Spectroscopy Scatter Phase Function 
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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Brian C. Wilson
    • 1
  1. 1.Ontario Cancer Institute and Department of Medical BiophysicsUniversity of TorontoTorontoCanada

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