| 摘要 |
PROBLEM TO BE SOLVED: To improve an existing video endoscope system into an autofluorescence imaging system without altering an endoscope itself of existing video endoscope systems.SOLUTION: A system and method for imaging tissue autofluorescence through a video endoscope are described by including: a light source capable of providing both ultraviolet light capable of inducing tissue autofluorescence and visible light which induces little or no autofluorescence; an optical system to deliver both wavelength bands to the tissue with the same apparent spatial and angular intensity distribution; a means for digitally acquiring visible fluorescence images and images like visibility by using a single imaging detector at the distal tip of the endoscope; and a means for digitally processing the images to generate a final and false-color image for display which indicates regions of tissue dysplasia. This system can either be added on to an existing video endoscope or integrated into its structure. The combined system can be electronically switched between normal white light imaging and fluorescence imaging. |
