Patent ID: 7428048

Claim:
An apparatus, comprising: a light source for generating polarized light; a first fiber optic path having a proximal end optically coupled to said light source and a distal end having an illumination port for illuminating a target; a second fiber optic path having a proximal end and a distal end having an imaging port for receiving light emitted from the target in response to the illumination by the illumination port, said first and second fiber optic paths constructed such that said distal ends can be inserted into a body cavity; a detector optically coupled to said proximal end of said second fiber optic path for generating images at both parallel and perpendicular polarizations for each of a plurality of wavelengths; a range finder for detecting a distance from said distal ends of said fiber optic paths to the target; control electronics for controlling the generating of images and the range finder; and an analyzer programmed to determine information about the size of scattering elements at different spatial locations of the target based on the generated images and the detected distance.