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dc.contributor.authorRamírez Cano, Natalia
dc.contributor.authorRallo Capdevila, Miguel
dc.contributor.authorMillán Garcia-Varela, M. Sagrario
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Òptica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Òptica i Optometria
dc.date.accessioned2023-04-27T12:33:57Z
dc.date.available2023-04-27T12:33:57Z
dc.date.issued2023-03-01
dc.identifier.citationRamírez, N.; Rallo, M.; Millan, M. Retinal vessel local tortuosity under a macula-to-optic disc central-framing change. "Diagnostics", 1 Març 2023, vol. 13, núm. 6, article 1030.
dc.identifier.issn2075-4418
dc.identifier.urihttp://hdl.handle.net/2117/386779
dc.description.abstractSome ocular and cardiovascular diseases can be detected through the increased tortuosity of retinal blood vessels. Objective tortuosity measures can be obtained from digital image analysis of a retinography. This study tested a set of local tortuosity indices under a change in the frame center (macula, optic disc) of the eye fundus image. We illustrate the effects of such a change on 40 pairs of vessels evaluated with eight tortuosity indices. We show that the frame center change caused significant differences in the mean values of the vast majority of the tortuosity indices analyzed. The index defined as the ratio of the curvature to the arc length of a vessel segment proved to be the most robust in relation to a frame center change. Experimental results obtained from the analysis of clinical images are provided and discussed.
dc.description.sponsorshipThis research was funded by Agencia Estatal de Investigación of the Spanish Government, grant number PID2020-114582RB-I00/AEI/10.13039/501100011033.
dc.language.isoeng
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectÀrees temàtiques de la UPC::Ciències de la visió
dc.subject.lcshEye -- Diseases
dc.subject.lcshOptical images
dc.subject.lcshImaging systems in medicine
dc.subject.otherTortuosity index
dc.subject.otherRetinography
dc.subject.otherVessel segmentation
dc.subject.otherDigital eye fundus image
dc.titleRetinal vessel local tortuosity under a macula-to-optic disc central-framing change
dc.typeArticle
dc.subject.lemacUlls -- Malalties
dc.subject.lemacFons de l'ull
dc.subject.lemacImatges òptiques
dc.subject.lemacImatgeria mèdica
dc.contributor.groupUniversitat Politècnica de Catalunya. GOAPI - Grup d'Òptica Aplicada i Processament d'Imatge
dc.identifier.doi10.3390/diagnostics13061030
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.mdpi.com/2075-4418/13/6/1030
dc.rights.accessOpen Access
local.identifier.drac35733508
dc.description.versionPostprint (published version)
local.citation.authorRamírez, N.; Rallo, M.; Millan, M.
local.citation.publicationNameDiagnostics
local.citation.volume13
local.citation.number6, article 1030


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