Patent ID: 7235045
Filing Date: 2007-06-26
Classification: A61B,G01J,G01N

Abstract:
1. A method of autofluorescence imaging comprising: providing an endoscope having an optical guide that is optically coupled to a first broadband light source and a second laser light source that emits light at a wavelength in a range of 350 nm to 420 nm, the endoscope having an image sensor at a distal end; collecting a reflectance image including red, green and blue components with the image sensor in response to illumination by said broadband light source; collecting an autofluorescence image having a blue component, a green component and a red component with the image sensor; and processing the autofluorescence image by determining a ratio of the autofluorescence image and the reflectance image to provide a processed fluorescence image.