Preferred embodiments of the present invention utilize a plurality of spectroscopic techniques to measure characteristics of tissue useful in the diagnosis of disease. Fluorescence, reflectance and light scattered spectra can be measured and processed to determine the size, distribution and/or composition...http://www.google.ca/patents/US6697652?utm_source=gb-gplus-sharePatent US6697652 - Fluorescence, reflectance and light scattering spectroscopy for measuring tissue
