نتایج جستجو برای: retinal blood vessels

تعداد نتایج: 782281  

Journal: :International Journal of Computational Intelligence Systems 2021

2013
Romany Fouad Mansour

Blood vessels in ophthalmoscope images play an important role in diagnosis of some serious pathology on retinal images. Hence, accurate extraction of vessels is becoming a main topic of this research area. In this paper, a new hybrid approach called the (Genetic algorithm and vertex chain code) for blood vessel detection. And this method uses geometrical parameters of retinal vascular tree for ...

Journal: :Circulation 1955
H O SIEKER J B HICKAM J F GIBSON

In hypertension and diabetes retinal vascular changes which are evident on fundiscopic examination are usually accompanied by renal vascular changes which are evident on microscopic examination. It has been found that the retinal vessels of most patients with hypertension or diabetes fail to constrict normally when the blood oxygen tension is elevated. This investigation evaluates the clinical ...

Journal: :Investigative ophthalmology & visual science 2004
Dana S Wall Robert L Gendron William V Good Ewa Miskiewicz Mandy Woodland Karina Leblanc Hélène Paradis

PURPOSE Identification of novel proteins involved in retinal neovascularization may facilitate new and more effective molecular-based treatments for proliferative retinopathy. Tubedown-1 (Tbdn-1) is a novel protein that shows homology to the yeast acetyltransferase subunit NAT1 and copurifies with an acetyltransferase activity. Tbdn-1 is expressed in normal retinal endothelium but is specifical...

Journal: :Modeling and Artificial Intelligence in Ophthalmology 2019

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