Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/14634

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dc.contributor.authorFerreira, D. S.-
dc.contributor.authorPinto, V. C.-
dc.contributor.authorCorreia, J. H.-
dc.contributor.authorMinas, Graça-
dc.date.accessioned2011-11-29T14:03:06Z-
dc.date.available2011-11-29T14:03:06Z-
dc.date.issued2011-06-23-
dc.date.submitted2011-03-15-
dc.identifier.issn0018-9294por
dc.identifier.urihttp://hdl.handle.net/1822/14634-
dc.description.abstractThe detection of dysplasia in the gastrointestinal tract can be performed using optical microsensors based on thin-film optical filters and silicon photodiodes. This paper describes two optical microsensors that can be used for spectroscopy data collection in two different spectral bands (one in the violet/blue region and the other in the green region) for which two optical filters were designed and fabricated. An empirical analysis of gastrointestinal spectroscopic data using these specific spectral bands is performed. The obtained results show that it is possible to accurately differentiate dysplastic lesions from normal tissue, with a sensitivity and specificity of 77.8% and 97.6%, respectively. Therefore, the developed filters can be used as a tool to aid in diagnosis. The small size of the optical microsensors can enable, in the future, integration in endoscopic capsules.por
dc.description.sponsorshipThis work was supported by ADI with reference FCOMP-01-0202- FEDER-005358, by FEDER funds through the “ProgramaOperacional Factores de Competitividade—COMPETE”, and by national funds by Fundação para a Ciência e a Tecnologia (FCT), with project reference PTDC/BIO/70017/2006, and the MIT|Portugal Program (SFRH/BD/38978/2007).por
dc.language.isoengpor
dc.publisherIEEEpor
dc.rightsrestrictedAccesspor
dc.subjectDiffuse-reflectancepor
dc.subjectFabry–Perot optical filterspor
dc.subjectFluorescencepor
dc.subjectSpectroscopy tissue diagnosispor
dc.titleSpectroscopic detection of gastrointestinal dysplasia using optical microsensorspor
dc.typearticlepor
dc.peerreviewedyespor
dc.relation.publisherversionhttp://ieeexplore.ieee.org.por
sdum.publicationstatuspublishedpor
oaire.citationStartPage2633por
oaire.citationEndPage2639por
oaire.citationIssue9por
oaire.citationTitleIEEE Transactions on Biomedical Engineeringpor
oaire.citationVolume58por
dc.identifier.doi10.1109/TBME.2011.2160263por
dc.identifier.pmid21708494por
dc.subject.wosScience & Technologypor
sdum.journalIEEE Transactions on Biomedical Engineeringpor
Appears in Collections:DEI - Artigos em revistas internacionais

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