Usefulness of Optic Fundus Examination With Retinography in Initial Evaluation of Hypertensive Patients

Foguet, Quintí; Rodríguez, Antonio Fernández; Sáez, Marc; Ubieto, Antonio; Beltrán, M.; Barceló, María Antònia; Coll, Gabriel

doi:10.1038/ajh.2008.3

Cited by 8 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…10 Computer-assisted methods allow reliable and precise measurements of retinal vessel calibre from digital retinal photographs. 4,[11][12][13] Fouguet et al 14 concluded that retinography allowed a more accurate stratification of cardiovascular risk in the first evaluation after diagnosis of hypertension, causing approximately 10% of the patients to be reclassified to a higher risk group. This underlies the importance of taking into account hypertensive retinopathy as target organ damage in evaluation and treatment of hypertensive individuals.…”

Section: Introductionmentioning

confidence: 99%

Blood pressure development and hypertensive retinopathy: 20-year follow-up of middle-aged normotensive and hypertensive men

Gudmundsdottir¹,

Taarnhøj

Strand

et al. 2009

J Hum Hypertens

View full text Add to dashboard Cite

Screening for hypertensive organ damage is important in assessing cardiovascular risk in hypertensive individuals. In a 20-year follow-up of normotensive and hypertensive men, signs of end-organ damage were examined, focusing on hypertensive retinopathy. In all, 56 of the original 79 men were reexamined for hypertensive organ damage, including by digital fundus photography. The diameters of the central retinal artery equivalent (CRAE) and vein were estimated and the artery-to-vein diameter ratio calculated. Components of metabolic syndrome were assessed. Fifty percent of the normotensive men developed hypertension during follow-up. Significant differences appeared in CRAE between the different blood pressure groups (P ¼ 0.025) while no differences were observed for other markers of hypertensive organ damage. There were significant relationships between CRAE and blood pressure at baseline (r ¼ -0.466, P ¼ 0.001) and at follow-up (r ¼ -0.508, Po0.001). A linear decrease in CRAE was observed with increasing number of components of the metabolic syndrome (b ¼ -3.947, R 2 ¼ 0.105, P ¼ 0.023). Retinal vascular diameters were closely linked to blood pressures and risk factors of the metabolic syndrome. The diversity in the development of hypertensive organ damage, with changes in retinal microvasculature preceding other signs of damage, should encourage more liberal use of fundus photography in assessing cardiovascular risk in hypertensive individuals.

show abstract

Section: Introductionmentioning

confidence: 99%

Blood pressure development and hypertensive retinopathy: 20-year follow-up of middle-aged normotensive and hypertensive men

Gudmundsdottir¹,

Taarnhøj

Strand

et al. 2009

J Hum Hypertens

View full text Add to dashboard Cite

show abstract

“…The mechanism for obtaining retinal images, well-known as Retinography, plays a fundamental role in providing high quality and contrast images for many applications, e.g., ocular scan identification in biometrics processes and retinopathies detection in ophthalmology [6]. Besides, some authors took advantage of the retinography diagnostic test to study hypertensive patients [7]. Others showed the reliability of the digital retinography for diabetic retinopathy screening [8].…”

Section: Introductionmentioning

confidence: 99%

Algorithmic Analysis of Vesselness and Blobness for Detecting Retinopathies Based on Fractional Gaussian Filters

et al. 2020

View full text Add to dashboard Cite

All around the world, partial or total blindness has become a direct consequence of diabetes and hypertension. Visual disorders related to these diseases require automatic and specialized methods to detect early malformations, artifacts, or irregular structures for helping specialists in the diagnosis. This study presents an innovative methodology for detecting and evaluating retinopathies, particularly microaneurysm and hemorrhages. The method is based on a multidirectional Fractional-Order Gaussian Filters tuned by the Differential Evolution algorithm. The contrast of the microaneurysms and hemorrhages, regarding the background, is improved substantially. After that, these structures are extracted using the Kittler thresholding method under additional considerations. Then, candidate lesions are detected by removing the blood vessels and fovea pixels in the resulting image. Finally, candidate lesions are classified according to its size, shape, and intensity properties via Support Vector Machines with a radial basis function kernel. The proposed method is evaluated by using the publicly available database MESSIDOR for detecting microaneurysms. The numerical results are summarized by the averaged binary metrics of accuracy, sensitivity, and specificity giving the performance values of 0.9995, 0.7820 and 0.9998, respectively.

show abstract

Case Studies to Demonstrate Real-World Applications in Ophthalmic Image Analysis

Remeseiro

Bolón-Canedo

2021

Handbook of Artificial Intelligence in Healthcare

View full text Add to dashboard Cite

Usefulness of Optic Fundus Examination With Retinography in Initial Evaluation of Hypertensive Patients

Cited by 8 publications

References 22 publications

Blood pressure development and hypertensive retinopathy: 20-year follow-up of middle-aged normotensive and hypertensive men

Blood pressure development and hypertensive retinopathy: 20-year follow-up of middle-aged normotensive and hypertensive men

Algorithmic Analysis of Vesselness and Blobness for Detecting Retinopathies Based on Fractional Gaussian Filters

Case Studies to Demonstrate Real-World Applications in Ophthalmic Image Analysis

Contact Info

Product

Resources

About