Patent ID: 6537211
Filing Date: 2003-03-25
Classification: A61B,G01J,G01N

Abstract:
A method of fluorescence imaging comprising:providing an endoscope having an optical guide that is optically coupled to a first arc lamp light source and a second arc lamp light source, the endoscope having an image sensor at a distal end; actuating the first arc lamp and the second arc lamp with an electronic controller to illuminate a region of tissue, the electronic controller switching current through the first arc lamp between a first illumination level and a second illumination level to control radiated power of the first arc lamp such that tissue is illuminated at the first illumination level or the second illumination level; collecting a reflectance image with the image sensor and generating a reference; collecting a fluorescence image with the image sensor; and processing the fluorescence image with the reference to provide a processed fluorescence image.