A model for photon migration in turbid biological media has been developed by Bonner et al.[2] Such a model can be applied for interpretation data obtained from laser Doppler blood-flow monitors and for designing protocols for therapeutic excitation of tissue chromophores.
The technique has many applications to neuroscience, sports medicine, wound monitoring, and cancer detection.
Typically DOI techniques monitor changes in concentrations of oxygenated and deoxygenated hemoglobin and may additionally measure redox states of cytochromes.
If laser pulses are sent through a turbid medium such as fog or body tissue, most of the photons are either randomly scattered or absorbed.
If efficiently detected, there are many applications for ballistic photons especially in coherent high resolution medical imaging systems.