Journal
JOURNAL OF BIOPHOTONICS
Volume 4, Issue 10, Pages 685-695Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jbio.201100041
Keywords
Raman spectroscopy; vibrational spectroscopy; Barrett's oesophagus; dysplasia; endoscopy
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Funding
- Department of Health [CSA/03/07/017] Funding Source: Medline
- National Institute for Health Research [CSA/03/07/017] Funding Source: researchfish
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There is a profound clinical need for a diagnostic tool that will enable clinicians to identify early neoplastic change in the oesophagus. Raman Spectroscopy (RS) has demonstrated the potential to provide non-invasive, rapid, objective diagnosis of endoscopically invisible precancerous oesophageal dysplasia in vitro. RS analyses biological material to identify highly specific biochemical information that can be used to influence clinical care. Raman spectroscopic mapping could provide automated assessment of tissue biopsies to aid histopathological diagnosis in vitro. Furthermore, the recent development of fibre-optic Raman probes has enabled endoscopic assessment of oesophageal mucosa in vivo. Accurate identification of dysplasia will enable targeted endoscopic resection of early lesions preventing the development of oesophageal cancer. This review summarises the development of Raman systems for use as laboratory based analytical adjuncts and endoscopic diagnostic tools in the distal oesophagus. [GRAPHICS] Raman spectra of normal squamous epithelium, Barrett's oesophagus/intestinal metaplasia, high grade dysplasia and adenocarcinoma. Each spectrum provides a biochemical fingerprint of the tissue being analysed.
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