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dc.contributor.author Βλαχοκώστα, Αλεξάνδρα Α. el
dc.contributor.author Ασβεστάς, Παντελής Α. el
dc.contributor.author Ματσόπουλος, Γεώργιος Κ. el
dc.contributor.author Ουζούνογλου, Νικόλαος Κ. el
dc.contributor.author Zeyen, T.G. en
dc.date.accessioned 2015-02-08T10:33:35Z
dc.date.available 2015-02-08T10:33:35Z
dc.date.issued 2015-02-08
dc.identifier.uri http://hdl.handle.net/11400/5840
dc.rights Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.source http://ieeexplore.ieee.org/ en
dc.subject Biomedical optical imaging
dc.subject Diameter measurement
dc.subject Βιοϊατρική οπτική απεικόνιση
dc.subject Μέτρηση διαμέτρου
dc.title Preliminary study on the association of vessel diameter variation and glaucoma en
heal.type conferenceItem
heal.generalDescription Conference proceedings of the 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society en
heal.classification Medicine
heal.classification Ophthalmology
heal.classification Ιατρική
heal.classification Οφθαλμολογία
heal.classificationURI http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI http://id.loc.gov/authorities/subjects/sh85095071
heal.classificationURI **N/A**-Ιατρική
heal.classificationURI **N/A**-Οφθαλμολογία
heal.identifier.secondary DOI: 10.1109/IEMBS.2007.4352433
heal.language en
heal.access campus
heal.recordProvider Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε. el
heal.publicationDate 2007
heal.bibliographicCitation Vlachokosta, A., Asvestas, P., Matsopoulos, G., Uzunoglu, N. and Zeyen, T. 92007). Preliminary study on the association of vessel diameter variation and glaucoma. In the 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Lyon, 22nd -26th Aug 2007. pp. 888-891. IEEE. Available from: http://ieeexplore.ieee.org en
heal.abstract In this paper, the relation between retinal vessel diameters and glaucoma by means of advanced image processing techniques is examined. Eighteen (18) patients with ocular hypertension who converted to early glaucoma (converters) and nineteen (19) patients with ocular hypertension who remain stable (non-converters) were imaged with a fundus camera at regular intervals. The first acquired image serves as the reference image, which is compared to each follow - up image. The proposed methodology involves the extraction of vessel center/lines by means of differential calculus, the geometrical alignment (registration) of the images using the chamfer matching algorithm, the estimation of vessel diameters by fitting a Gaussian function to intensity profiles. The statistical analysis of the variations of the vessels diameters revealed a significant difference between the two populations. This difference indicates a probable association between glaucoma and variations of the vessel diameter. en
heal.publisher IEEE en
heal.fullTextAvailability true
heal.conferenceName Annual International Conference of the IEEE Engineering in Medicine and Biology Society en
heal.conferenceItemType full paper


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Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες Except where otherwise noted, this item's license is described as Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες