Method and apparatus for spectral transmissibility examination and analysis - Patent Review 4570638

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Method and apparatus for spectral transmissibility examination and analysis

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United States Patent

4570638

Link to this page

http://www.wikipatents.com/4570638.html

Inventor(s)

Stoddart; Hugh F. (Groton, MA); Lewis; Gary D. (St. Clair Shores, MI)

Abstract

Methodology and apparatus for the clinical evaluation of biological matter, in particular the human breast, in situ and in vivo, by spectral light transmissivity. An optical probe introduces selected light spectra into the examination subject at a first position and resulting light is detected at a second position located some distance from the infusion point; also, reception preferably occurs at another location, and the distances of these locations from the infusion point are determined. The light energy received at the distant points is quantified and conditioned by use of the determined distances from the infusion point and also by contrasting the data from the two differently-located reception points, such that the resulting data is compensated or normalized to characterize intrinsic internal tissue characteristics in an absolute sense, devoid of individual characteristics such as skin pigmentation, breast thickness, etc. The methodology further includes analytical or diagnostic treatment of the conditioned data by specific comparison of conditioned data taken from different regions of the same subject, of conditioned data taken from the same region on physiologically paired and/or different subjects, and also provides for meaningful accumulation of large-scale "background" or "average" values based upon identified and selected patient populations.

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