
108 Handbook of Biomedical Optics
6.2.4 Modeling and Data Analysis
6.2.4.1 Introduction
In this section we briey discuss the models that are com-
monly used to describe the propagation of light in tissue and
the measured reectance signal. e models are described in
more detail in Chapter 16. It is important to note that the selec-
tion of a model should take into account both the scattering
and absorption properties of the tissue under study, as well as
the design of the instrument used to measure the reectance
(e.g., optical ber probe geometry). Furthermore, many of
these models make simplifying assumptions, such as neglect-