ALTAIR: Supervised Methodology to Obtain Retinal Vessels Caliber

Altair: Automatic Image Analyzer to Assess Retinal Vessel Caliber

The scope of this work is to develop a technological platform specialized in assessing retinal vessel caliber and describing the relationship of the results obtained to cardiovascular risk. Population studies conducted have found retinal vessel caliber to be related to the risk of hypertension, left ventricular hypertrophy, metabolic syndrome, stroke, and coronary artery disease. The vascular s...

Hypertensive retinopathy. Caliber changes in retinal blood vessels following blood-pressure reduction and inhalation of oxygen.

Update on retinal vascular caliber

Retinal vessels are the only blood vessels that can be viewed directly, in vivo, repetitively and non-invasively. Retinal vessel caliber is influenced by physiological (age, sex, race, blood pressure, blood glucose, body mass index) and pathological (atherosclerosis, dyslipidemia, smoking) determinants. There are studies on large population groups that demonstrate the associations between retin...

Blood Vessels Parental History of Hypertension Is Associated With Narrower Retinal Arteriolar Caliber in Young Girls

We aimed to assess the associations between parental history of hypertension and indicators of cardiovascular risk (retinal vessel diameter, presence of obesity, and elevated blood pressure) in prepubertal children. There were 1739 (77.7% of those eligible) 6-year–old students (863 girls and 876 boys) who were examined from a random cluster sample of 34 Sydney schools. Parents completed questio...

Using MAS to Detect Retinal Blood Vessels

The segmentation of retinal vasculature by color fundus images analysis is crucial for several medical diagnostic systems, such as the diabetic retinopathy early diagnosis. Several interesting approaches have been done in this field but the obtained results need to be improved. We propose therefore a new approach based on an organization of agents. This multi-agent approach is preceded by a pre...