Patent ID: 9295392
Filing Date: 2016-03-29
CPC Classification: A61B

Claim Text:
1. A method for assessing cancer risk by diffuse reflectance spectroscopy, comprising: directing light from a source to an area of esophageal tissue with an endoscope to provide wide field illumination of a surface of the tissue, the light having a wavelength range that includes at least a portion of the visible spectrum; measuring, with a reflectance probe, intensity of diffusely reflected light in at least four distinct narrow wavelength bands at different tissue sampling sites, said at least four bands being in the wavelength range of the illumination light, two of said bands being in the blue light range, and two of said bands being in the red light range; computing a parameter value for each of the different tissue sampling sites, the parameter being a predetermined linear discriminate function based on said intensity measurements; and assessing malignancy of the tissue based on the computed parameter values from the different tissue sampling sites.