The present invention provides a method and an apparatus for the in vivo, non-invasive, early detection of alterations and mapping of the grade of these alterations, caused in the biochemical and/or in the functional characteristics of epithelial tissues during the development of tissue atypias, dysplasias,...http://www.google.de/patents/US20020007123?utm_source=gb-gplus-sharePatent US20020007123 - Method and system for characterization and mapping of tissue lesions
