Near infrared diagnostic method and instrument

Details Near infrared diagnostic method and instrument Near infrared diagnostic method and instrument

1990-07-16

1993-03-30

Kamm, William E.

Surgery

Truss

Pad

128664, 606 15, A61B 500, A61B 1700

Patent

active

051974703

ABSTRACT:
There are disclosed an instrument and method for using near IR to discriminate between healthy and diseased tissue, using, e.g., a catheter and a spectrophotometer. Near IR is passed at certain wavelengths to suspected tissue, and reflected light is analyzed to determine the absorbance, and preferably the second derivative thereof. From identification of the absorption spectra of known diseased and known healthy tissue, a relation has been established to determine the following correlation equation for determining the predictive value of y:

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Applied Optics, vol. 27, No. 9, (May, 1988) by A. F. Gmitro et al.

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