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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. S1 — Aug. 28, 2005
  • pp: S176–S178

Detection and characterization of esophagus dysplasia using fluorescence and Raman spectroscopy

Xiaozhou Li, Junxiu Lin, Jianhua Ding, Deli Wang, Yue Wang, and Xinyu Li  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue S1, pp. S176-S178 (2005)


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Abstract

In this paper, we present a three-parametric model using Raman and fluorescence spectroscopy for detection and analysis of esophagus dysphasia and esophagus cancer. The model was set up from more than 1000 samples. And 56 samples were used to test this algorithm of the model prospectively. The serum spectra were excited by laser of the wavelengths 488.0 and 514.5 nm. The apparent differences of auto-fluorescence and Raman spectroscopy were observed for patients compared to the normal: the majority of the fluorescence spectra did not have violent alteration, but three Raman peaks disappeared or were found to be very weak. Moreover, 'Delta lambda' value (red shift of fluorescence peak) and 'alpha'-value (rate of fluorescence intensity) also provide the reference for future research. And I-value (intensity of Raman peak) will decrease with progression of the tumor. The result of spectral analysis is accordance with the clinical diagnosis.

© 2005 Chinese Optics Letters

OCIS Codes
(000.1430) General : Biology and medicine
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(300.0300) Spectroscopy : Spectroscopy

Citation
Xiaozhou Li, Junxiu Lin, Jianhua Ding, Deli Wang, Yue Wang, and Xinyu Li, "Detection and characterization of esophagus dysplasia using fluorescence and Raman spectroscopy," Chin. Opt. Lett. 3, S176-S178 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-S1-S176


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