Results 11 to 20 of about 3,188,886 (223)

Optical coherence tomography angiography

open access: yesKerala Journal of Ophthalmology, 2016
Optical coherence tomography angiography (OCTA) is a non-invasive angiography type without a contrast agent, which provides a detailed assessment of the retinal and choroidal vasculature and visualization of blood flow by detecting motions of ...
Remya Mareen Paulose, Jay Chhablani
doaj   +2 more sources

Optical Coherence Tomography Angiography in Glaucoma

open access: yesTürk Oftalmoloji Dergisi, 2018
Optical coherence tomography angiography (OCTA) comprises different OCT-based technologies developed for non-invasive assessment and measurement of optic nerve head and retinal perfusion. Currently the most clinically established approach is based on the
Gábor Holló
doaj   +2 more sources

Tissue surface as the reference arm in Fourier domain optical coherence tomography [PDF]

open access: yes, 2012
We present a simple method applicable to common-path Fourier domain optical coherence tomography (OCT) in which the tissue surface is used as the reference arm.
Giardini, Mario Ettore   +8 more
core   +5 more sources

Phantoms for performance assessment of optical coherence tomography systems [PDF]

open access: yes, 2012
In this paper, we describe the procedures to make epoxy resin and agarose phantoms designed using Mie scattering calculations. The phantoms are constructed to be used in the estimation of point spread function (PSF) of an optical coherence tomography ...
S. A. Hojjatoleslami   +16 more
core   +1 more source

OCT Angiography: A promising tool in Glaucoma

open access: yesDelhi Journal of Ophthalmology, 2021
Optical Coherence Tomography Angiography, a non-invasive imaging modality provides a quantitative assessment of microcirculation of retina and choroid in various layers.
Priya Saraf, Neha Sachdeva, Hage Amung
doaj   +1 more source

Optical coherence tomography and scanning laser ophthalmoscopy: Approaches to dual-channel retinal tissue imaging [PDF]

open access: yes, 2014
We report a Talbot bands-based optical coherence tomography (OCT) system capable of producing longitudinal B-scan OCT images and en-face scanning laser ophthalmoscopy (SLO) images of the human retina in-vivo, with various degrees of ...
Adrian Bradu   +5 more
core   +1 more source

Stepwise segmentation error correction in optical coherence tomography angiography images of patients with diabetic macular edema

open access: yesTherapeutic Advances in Ophthalmology, 2020
Aim: To determine the minimum number of optical coherence tomography B-scan corrections required to provide acceptable vessel density measurements on optical coherence tomography angiography images in eyes with diabetic macular edema.
Khalil Ghasemi Falavarjani   +3 more
doaj   +1 more source

Characterization of optical fiber imaging bundles for swept-source optical coherence tomography [PDF]

open access: yes, 2011
Fiber imaging bundles have been investigated for use in endoscopic optical coherence tomography (OCT) systems, to obviate the requirement for scanning components within the endoscope probe section.
Helen D. Ford   +3 more
core   +1 more source

Surface imaging of metallic material fractures using optical coherence tomography [PDF]

open access: yes, 2014
We demonstrate the capability of optical coherence tomography (OCT) to perform topography of metallic surfaces after being subjected to ductile or brittle fracturing.
Demian, D.   +4 more
core   +1 more source

Optical Coherence Tomography Angiography in Chiasmitis

open access: yesCase Reports in Ophthalmology, 2022
A 29-year-old girl presented complaining of acute bilateral visual loss associated with mild headache and retrobulbar pain. She was diagnosed with chiasmal optic neuritis caused by multiple sclerosis.
Alessandra Cuna   +8 more
doaj   +1 more source

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