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Measuring optical properties of human liver between 400 and 1000 nm

2019Journal article Restricted access
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dc.contributor.authorCarneiro, Isa
dc.contributor.authorCarvalho, Sónia
dc.contributor.authorHenrique, Rui
dc.contributor.authorOliveira, Luís
dc.contributor.authorTuchin, V.
dc.date.accessioned2021-02-25T17:26:30Z
dc.date.embargo2120
dc.date.issued2019
dc.description.abstractLaser diagnostics and treatment procedures are commonly performed for visible and near-IR wavelengths. The knowledge of the wavelength dependences for the optical properties of various biological tissues in this spectral range is useful for clinical applications. Since the optical properties of human liver have been previously known only for near-IR wavelengths, the aim is to estimate their wavelength dependences between 400 and 1000 nm. Using spectral measurements from liver samples in this range, we determine their optical properties with the inverse adding-doubling method. The obtained results indicate the presence of bile, oxyhaemoglobin and deoxyhaemoglobin in human liver. The combination of these biological components results in strong absorption for wavelengths between 400 and 600 nm, with peaks at unusual wavelengths. For wavelengths above 600 nm, the wavelength dependences for all optical properties present the typical behavior, but strong and shifted absorption observed for wavelengths below 600 nm has been previously unknown and can be useful for clinical procedures with lasers working in this range.pt_PT
dc.description.sponsorshipThis research was supported by the Portuguese research grant UID-EQU-04730-2013. Work of VVT was supported by the Russian Foundation for Basic Research (Grant No. 17-00-00275 (17-00-00272)].pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1070/QEL16903pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/17170
dc.language.isoengpt_PT
dc.publisherIOPSciencept_PT
dc.relationUID-EQU-04730-2013pt_PT
dc.relation.publisherversionhttps://iopscience.iop.org/article/10.1070/QEL16903pt_PT
dc.subjectHuman liverpt_PT
dc.subjectLaserspt_PT
dc.subjectInverse adding-doublingpt_PT
dc.subjectAbsorption coefficientpt_PT
dc.subjectScattering coefficientpt_PT
dc.subjectScattering anisotropy factorpt_PT
dc.subjectLight penetration depthpt_PT
dc.titleMeasuring optical properties of human liver between 400 and 1000 nmpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage19pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage13pt_PT
oaire.citation.titleQuantum Electronicspt_PT
oaire.citation.volume49pt_PT
person.familyNameOliveira
person.givenNameLuís
person.identifier414820
person.identifier.ciencia-idC312-F342-BD23
person.identifier.orcid0000-0003-0667-3428
person.identifier.ridB-7198-2017
person.identifier.scopus-author-id55853723900
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4e2de4d7-142a-400f-8dbf-cd0ff9551093
relation.isAuthorOfPublication.latestForDiscovery4e2de4d7-142a-400f-8dbf-cd0ff9551093

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