dc.contributor
Universitat Politècnica de Catalunya. Doctorat en Enginyeria Òptica
dc.contributor
Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria
dc.contributor
Universitat Politècnica de Catalunya. GOAPI - Grup d'Òptica Aplicada i Processament d'Imatge
dc.contributor.author
Ramírez Cano, Natalia
dc.contributor.author
Rallo Capdevila, Miguel
dc.contributor.author
Millán Garcia-Varela, M. Sagrario
dc.date.issued
2023-03-01
dc.identifier
Ramírez, 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
https://hdl.handle.net/2117/386779
dc.identifier
10.3390/diagnostics13061030
dc.description.abstract
Some 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.abstract
This research was funded by Agencia Estatal de Investigación of the Spanish Government, grant number PID2020-114582RB-I00/AEI/10.13039/501100011033.
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.relation
https://www.mdpi.com/2075-4418/13/6/1030
dc.rights
http://creativecommons.org/licenses/by/4.0/
dc.rights
Attribution 4.0 International
dc.subject
Àrees temàtiques de la UPC::Ciències de la visió
dc.subject
Eye -- Diseases
dc.subject
Optical images
dc.subject
Imaging systems in medicine
dc.subject
Tortuosity index
dc.subject
Vessel segmentation
dc.subject
Digital eye fundus image
dc.subject
Ulls -- Malalties
dc.subject
Imatges òptiques
dc.subject
Imatgeria mèdica
dc.title
Retinal vessel local tortuosity under a macula-to-optic disc central-framing change
