Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images

Abstract: Foveal avascular zone (FAZ) is the fovea devoid of capillaries in the macular region. An enlargement of FAZ is usually found in eyes with diabetic retinopathy (DR) resulting from a loss of capillaries in the perifoveal capillary network. Monitoring FAZ area enlargement at non-proliferative...

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Main Authors:	Ahmad Fadzil, M Hani, Izhar, Lila Isnita, Nugroho, Hanung Adi
Format:	Citation Index Journal
Published:	Inderscience Publishers 2011
Subjects:	RE Ophthalmology QA75 Electronic computers. Computer science
Online Access:	http://eprints.utp.edu.my/3181/ http://eprints.utp.edu.my/3181/1/IJMEI_-_Area_Analysis_of_FAZ_new1.pdf

id	utp-3181
recordtype	eprints
spelling	utp-31812017-01-19T08:23:05Z Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images Ahmad Fadzil, M Hani Izhar, Lila Isnita Nugroho, Hanung Adi RE Ophthalmology QA75 Electronic computers. Computer science Abstract: Foveal avascular zone (FAZ) is the fovea devoid of capillaries in the macular region. An enlargement of FAZ is usually found in eyes with diabetic retinopathy (DR) resulting from a loss of capillaries in the perifoveal capillary network. Monitoring FAZ area enlargement at non-proliferative DR (NPDR) stage enables physicians to take preventive measures to curb progression of the disease to proliferative DR (PDR) stage and visual loss. Currently it is difficult to discern the FAZ area and to measure its enlargement in an objective manner using on color fundus images instead we require performing fundus fluorescein angiogram. Fundus image analysis of FAZ presents several challenges such as high image, improper illumination, glare, fadeout, loss of focus and artifacts arising from reflection, refraction and dispersion. A new automated approach for area analysis of FAZ using color fundus images has been developed. Here, a binary map of retinal vasculature is computer generated from the color fundus image by extraction and reconstruction of retinal vasculature. The binary image is then used to determine vessel ends and pathologies surrounding FAZ for area analysis. Inderscience Publishers 2011 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/3181/1/IJMEI_-_Area_Analysis_of_FAZ_new1.pdf Ahmad Fadzil, M Hani and Izhar, Lila Isnita and Nugroho, Hanung Adi (2011) Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images. [Citation Index Journal] http://eprints.utp.edu.my/3181/
institution	Universiti Teknologi Petronas Universiti Teknologi Petronas
repository_type	Digital Repository
institution_category	Local University
building	UTP Repository
collection	Online Access
topic	RE Ophthalmology QA75 Electronic computers. Computer science
spellingShingle	RE Ophthalmology QA75 Electronic computers. Computer science Ahmad Fadzil, M Hani Izhar, Lila Isnita Nugroho, Hanung Adi Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images
description	Abstract: Foveal avascular zone (FAZ) is the fovea devoid of capillaries in the macular region. An enlargement of FAZ is usually found in eyes with diabetic retinopathy (DR) resulting from a loss of capillaries in the perifoveal capillary network. Monitoring FAZ area enlargement at non-proliferative DR (NPDR) stage enables physicians to take preventive measures to curb progression of the disease to proliferative DR (PDR) stage and visual loss. Currently it is difficult to discern the FAZ area and to measure its enlargement in an objective manner using on color fundus images instead we require performing fundus fluorescein angiogram. Fundus image analysis of FAZ presents several challenges such as high image, improper illumination, glare, fadeout, loss of focus and artifacts arising from reflection, refraction and dispersion. A new automated approach for area analysis of FAZ using color fundus images has been developed. Here, a binary map of retinal vasculature is computer generated from the color fundus image by extraction and reconstruction of retinal vasculature. The binary image is then used to determine vessel ends and pathologies surrounding FAZ for area analysis.
format	Citation Index Journal
author	Ahmad Fadzil, M Hani Izhar, Lila Isnita Nugroho, Hanung Adi
author_facet	Ahmad Fadzil, M Hani Izhar, Lila Isnita Nugroho, Hanung Adi
author_sort	Ahmad Fadzil, M Hani
title	Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images
title_short	Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images
title_full	Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images
title_fullStr	Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images
title_full_unstemmed	Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images
title_sort	area analysis of foveal avascular zone in diabetic retinopathy color fundus images
publisher	Inderscience Publishers
publishDate	2011
url	http://eprints.utp.edu.my/3181/ http://eprints.utp.edu.my/3181/1/IJMEI_-_Area_Analysis_of_FAZ_new1.pdf
first_indexed	2018-09-08T10:14:41Z
last_indexed	2018-09-08T10:14:41Z
_version_	1611033929369780224

Area Analysis of Foveal Avascular Zone in Diabetic Retinopathy Color Fundus Images

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