Identification of human tissue using optical spectroscopy

摘要: Tissue types (e.g. tumorous or normal) are determined using optical spectroscopy. Autofluorescence and diffuse reflectance spectra generated by separately illuminating a tissue surface area with monochromatic light white light. A peak in autofluorescence intensity (F) is provided around 460 nm from both normal human brain 337 excitation. Separation between white/gray matter tumors certain combined F-Rd spectrum numerical values, especially ratios of F Rd 400 nm-600 nm. Numerical values based on combinations unequal exponential powers essentially unaffected the superficial blood contamination. In addition, (Rd) 650 800 was significantly stronger than that primary secondary used value to enhance accurate determinations.