Results 31 to 40 of about 141,412 (299)

Retinal blood vessels segmentation using classical edge detection filters and the neural network

open access: yesInformatics in Medicine Unlocked, 2021
Retinal blood vessels analysis is of interest for medical screening, especially in the diagnosis of diabetic retinopathy. In this paper, we propose a new method for the segmentation of blood vessels in retinal photographs.
Beaudelaire Saha Tchinda   +4 more
doaj   +1 more source

A Recursive Bayesian Approach To Describe Retinal Vasculature Geometry [PDF]

open access: yes, 2017
Demographic studies suggest that changes in the retinal vasculature geometry, especially in vessel width, are associated with the incidence or progression of eye-related or systemic diseases. To date, the main information source for width estimation from
Bharath, Anil Anthony   +1 more
core   +2 more sources

Retinal Health Investigation by Segmentation of Major and Minor Blood Vessels in Fundus Images for Diabetes Patients [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2019
Introduction: The Major and Minor blood vessel and the optic disc are the important factors for finding the presence of retinal disease like diabetic retinopathy.
S Poonguzhali, Rekha Chakravarthi
doaj   +1 more source

Age and diabetes related changes of the retinal capillaries: an ultrastructural and immunohistochemical study [PDF]

open access: yes, 2015
Normal human aging and diabetes are associated with a gradual decrease of cerebral flow in the brain with changes in vascular architecture. Thickening of the capillary basement membrane and microvascular fibrosis are evident in the central nervous system
ARTICO, Marco   +10 more
core   +1 more source

Retinal vascular tortuosity in patients with obstructive sleep apnea-chronic obstructive pulmonary disease overlap syndrome

open access: yesEgyptian Journal of Chest Disease and Tuberculosis, 2018
Background Obstructive sleep apnea (OSA) and chronic obstructive pulmonary disease (COPD) are linked with microvascular changes. Retinal microvasculature can be examined in a direct noninvasive way.
Rabab A El Wahsh   +2 more
doaj   +1 more source

Mechanisms underlying microglial colonization of developing neural retina in zebrafish

open access: yeseLife, 2021
Microglia are brain-resident macrophages that function as the first line of defense in brain. Embryonic microglial precursors originate in peripheral mesoderm and migrate into the brain during development.
Nishtha Ranawat, Ichiro Masai
doaj   +1 more source

Discordance in Retinal and Choroidal Vascular Densities in Patients with Type 2 Diabetes Mellitus on Optical Coherence Tomography Angiography

open access: yesJournal of Ophthalmology, 2021
Purpose. In the present study, the retinal and choroidal vascular densities (VDs) in type 2 diabetes mellitus (DM) patients were analyzed using optical coherence tomography angiography (OCTA). Methods.
Ho Ra   +5 more
doaj   +1 more source

Comparative Analysis of Vessel Segmentation Techniques in Retinal Images

open access: yesIEEE Access, 2019
The blood vessels are the primary anatomical structure that can be visible in retinal images. The segmentation of retinal blood vessels has been accepted worldwide for the diagnosis of both cardiovascular (CVD) and retinal diseases.
Azhar Imran   +4 more
doaj   +1 more source

Retinal Vessel Segmentation Algorithm Based on Residual Convolution Neural Network

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Retinal vessels are the only deep micro vessels that can be observed in human body, the accurate identification of which has great significance on the diagnosis of hypertension, diabetes and other diseases.
Shuang Xu   +8 more
doaj   +1 more source

Retinal micro-vascular and aortic macro-vascular changes in postmenopausal women with primary hyperparathyroidism [PDF]

open access: yes, 2018
Aim of the study was to evaluate the micro and macro-vascular changes in patients with primary hyperparathyroidism (PHPT) compared to controls. 30 postmenopausal PHPT women (15 hypertensive and 15 normotensive) and 30 normotensive controls underwent ...
Biamonte, Federica   +8 more
core   +2 more sources

Home - About - Disclaimer - Privacy