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Simultaneous fingerprint and high-wavenumber Raman endoscopy for in vivo diagnosis of colorectal precancer

  • Kan Lin
  • , Jianfeng Wang
  • , Mads Sylvest Bergholt
  • , Wei Zheng
  • , Hongzhi Xu
  • , Jian Lin Ren
  • , Khek Yu Ho
  • , Ming Teh
  • , Khay Guan Yeoh
  • , Zhiwei Huang*
  • *Corresponding author for this work
  • National University of Singapore
  • Zhongshan Hospital Affiliated to Xiamen University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work aims to apply a fiber-optic Raman spectroscopy technique for in vivo assessment of adenomatous polyps during clinical colonoscopy. We have developed a fiber-optic Raman endoscopic technique capable of simultaneously acquiring both the fingerprint (FP) (i.e., 800-1800 cm-1) and high-wavenumber (HW) (i.e., 2800-3600 cm-1) Raman spectra for real-time assessment of colorectal carcinogenesis. Simultaneous FP/HW Raman endoscopy provides a diagnostic sensitivity of 90.9% and specificity of 83.3% for differentiating adenoma from hyperplastic polyps, which is superior to either the FP or HW Raman technique alone. This study shows that simultaneous FP/HW Raman spectroscopy has the potential for improving early diagnosis of adenomatous polyps in vivo during colonoscopic examination.

Original languageEnglish
Title of host publicationEndoscopic Microscopy X; and Optical Techniques in Pulmonary Medicine II
EditorsMelissa J. Suter, Stephen Lam, Matthew Brenner, Guillermo J. Tearney, Thomas D. Wang
PublisherSPIE
ISBN (Electronic)9781628413946
DOIs
Publication statusPublished - 2015
Externally publishedYes
EventEndoscopic Microscopy X; and Optical Techniques in Pulmonary Medicine II - San Francisco, United States
Duration: 7 Feb 20159 Feb 2015

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume9304
ISSN (Print)1605-7422

Conference

ConferenceEndoscopic Microscopy X; and Optical Techniques in Pulmonary Medicine II
Country/TerritoryUnited States
CitySan Francisco
Period7/02/159/02/15

Keywords

  • Raman spectroscopy
  • adenomatous polyp
  • colon
  • colonoscopy
  • in vivo optical diagnosis

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