NON-INVASIVE DIFFERENTIAL DIAGNOSTIC TECHNIQUE FOR SKIN GROWTHS Russian patent published in 2015 - IPC A61B6/00 G01N33/52 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, particularly to oncology. A combined scattering spectroscope is used to record a spectral series of the new growth and healthy tissue. A working portion of the spectroscope is placed directly above the examined region at 3-4 mm. Recording the spectra is followed by performing the statistical analysis of the results on a personal computer. Analysing involves identifying two phase signs that are a relation of peak intensities of the combined scattering in the bandwidths 1300-1340 cm^-1 and 1640-1680 cm^-1 to the bandwidth 1430-1470 cm^-1. The combined scattering spectroscopic data obtained by each measurement are presented as a point on a phase plane. The point is found in one of three regions of the phase plane. According as which of the three regions of the plane comprises the point, either melanoma, or basal cell or squamous cell cancer, or no skin growths is diagnosed in the patient.

EFFECT: method enables obtaining objective data enabling differentiating various types of the skin growths, that provides high accuracy of the pre-operative diagnosis.

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