Results 41 to 50 of about 1,063,279 (256)

Concurrent OCT and OCT angiography of retinal neurovascular degeneration in the 5XFAD Alzheimer’s disease mice

open access: yesNeurophotonics, 2021
. Significance: As one part of the central nervous system, the retina manifests neurovascular defects in Alzheimer’s disease (AD). Quantitative imaging of retinal neurovascular abnormalities may promise a new method for early diagnosis and treatment ...
Tae-Hoon Kim   +3 more
semanticscholar   +1 more source

OCT-angiography detects longitudinal microvascular changes in glaucoma: a systematic review

open access: yesBritish Journal of Ophthalmology, 2021
Background/aims Optical coherence tomography angiography (OCTA) allows the study of vessel density (VD). We intended to perform a systematic review of studies focusing on longitudinal changes in peripapillary and macular VD measurements in glaucoma ...
A. Miguel   +8 more
semanticscholar   +1 more source

Systematic review of the clinical effectiveness and cost-effectiveness of 64-slice or higher computed tomography angiography as an alternative to invasive coronary angiography in the investigation of coronary artery disease [PDF]

open access: yes, 2008
Objectives: To assess the clinical effectiveness and cost-effectiveness, in different patient groups, of the use of 64-slice or higher computed tomography (CT) angiography, instead of invasive coronary angiography (CA), for diagnosing people with ...
Cummins, E.   +7 more
core   +3 more sources

Swept source optical coherence tomography-angiography of choroid in choroidal hemangioma before and after laser photocoagulation

open access: yesIndian Journal of Ophthalmology, 2017
Swept source optical coherence tomography-angiography (OCT-angiography) gives us a unique opportunity to study the vasculature of choroidal lesions in vivo. We describe the OCT angiographic characteristics of circumscribed choroidal hemangioma before and
Rohan Chawla   +3 more
doaj   +1 more source

A Novel Strategy for Quantifying Choriocapillaris Flow Voids Using Swept-Source OCT Angiography

open access: yesInvestigative Ophthalmology and Visual Science, 2018
Purpose To achieve reproducible imaging of the choriocapillaris and associated flow voids using swept-source OCT angiography (SS-OCTA). Methods Subjects were enrolled and SS-OCTA was performed using the 3 × 3 mm scan pattern.
Qinqin Zhang   +10 more
semanticscholar   +1 more source

Optical Coherence Tomography Angiography of Dry Age-Related Macular Degeneration

open access: yes, 2016
Optical coherence tomography angiography (OCTA) can be used to visualize alterations in the choriocapillaris of patients with dry age-related macular degeneration (AMD). These changes seem to be present during all stages of the disease.
Nadia K. Waheed   +7 more
core   +2 more sources

One year follow up in siblings with TREX1-associated retinal vasculopathy with cerebral leukodystrophy

open access: yesAmerican Journal of Ophthalmology Case Reports
Purpose: To report macular vascular changes in two cases of retinal vasculopathy with cerebral leukodystrophy (RVCL). Observations: This report presents long-term follow-up findings in two sisters with RVCL, using conventional optical coherence ...
Georgios Mylonas   +10 more
doaj   +1 more source

OCT Angiography – A Perspective Based on 3 Years of Clinical Application

open access: yesDelhi Journal of Ophthalmology, 2019
Optical Coherence Tomography Angiography is a new technique for non-invasive, dyeless angiography. It gives flow information of retinal and choroidal vasculature.
Surbhi Agrawal   +5 more
doaj   +1 more source

Choroidal nevus and polypoidal vasculopathy: case series

open access: yesInternational Journal of Retina and Vitreous, 2020
Background To report an association between choroidal nevus and polypoidal choroidal vasculopathy (PCV) in three patients. Case presentation We have encountered 3 isolated patients in our center presenting with subretinal exudation and a choroidal nevus ...
Karlos Ítalo S. Viana   +3 more
doaj   +1 more source

Comparative cost-effectiveness analyses of cardiovascular magnetic resonance and coronary angiography combined with fractional flow reserve for the diagnosis of coronary artery disease. [PDF]

open access: yes, 2014
According to recent guidelines, patients with coronary artery disease (CAD) should undergo revascularization if significant myocardial ischemia is present.
Pilz, G.   +33 more
core   +1 more source

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