Frequency-domain techniques for characterizing ocular and abdominal tissue are being investigated in our laboratories. Results of tissue-characterization processing, often displayed in graphical or numerical format, are also being displayed in image format. This allows for viewing the spatial distribution of the particular parameter being studied. This capability may prove to be important clinically, since it provides a means for visualizing and comparing different pathologies, monitoring changes due to treatment, and imaging the extent of disease processes. The displayed parameters are derived from clinical data bases of independently verified pathologies, as well as an analytic model that relates spectral parameters to physical properties.
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