Results 1 to 10 of about 560,188 (403)

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   +5 more sources

Optical coherence tomography and optical coherence tomography angiography in uveitis: A review [PDF]

open access: yesClinical & Experimental Ophthalmology, 2019
Optical coherence tomography (OCT) has dramatically changed the understanding and management of uveitis and other ocular conditions. Currently, OCT angiography (OCTA) combines structural information with the visualization of blood flow within the imaged ...
A. Invernizzi, M. Cozzi, G. Staurenghi
semanticscholar   +6 more sources

Optical Coherence Tomography and Optical Coherence Tomography Angiography in Monitoring Coats’ Disease [PDF]

open access: yesJournal of Ophthalmology, 2017
Purpose. The aim of this study was to evaluate the usefulness of optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA) in monitoring pediatric patients with Coats’ disease. Material and Methods.
Wojciech Hautz   +2 more
doaj   +6 more sources

Optical Coherence Tomography [PDF]

open access: yesNature Reviews Methods Primers, 1991
Optical coherence tomography (OCT) is a non-contact method for imaging the topological and internal microstructure of samples in three dimensions. OCT can be configured as a conventional microscope, as an ophthalmic scanner, or using endoscopes and small diameter catheters for accessing internal biological organs.
D. Huang   +10 more
semanticscholar   +8 more sources

Optical Coherence Tomography [PDF]

open access: yesThe Scientific World Journal, 2007
Optical coherence tomography (OCT) is an optical imaging modality that performs high-resolution, cross-sectional, subsurface tomographic imaging of the microstructure of tissues.
Pier Alberto Testoni
doaj   +7 more sources

Toward optical coherence tomography on a chip: in vivo three-dimensional human retinal imaging using photonic integrated circuit-based arrayed waveguide gratings [PDF]

open access: yesLight: Science & Applications, 2021
In this work, we present a significant step toward in vivo ophthalmic optical coherence tomography and angiography on a photonic integrated chip. The diffraction gratings used in spectral-domain optical coherence tomography can be replaced by photonic ...
E. Rank   +14 more
semanticscholar   +3 more sources

Ghost optical coherence tomography [PDF]

open access: yesOptics Express, 2018
We demonstrate experimentally ghost optical coherence tomography using a broadband incoherent supercontinuum light source with shot-to-shot random spectral fluctuations. The technique is based on ghost imaging in the spectral domain where the object is the spectral interference pattern generated from an optical coherence tomography interferometer in ...
Caroline G. Amiot   +4 more
arxiv   +8 more sources

Second harmonic optical coherence tomography [PDF]

open access: yes, 2004
Second harmonic optical coherence tomography, which uses coherence gating of second-order nonlinear optical response of biological tissues for imaging, is described and demonstrated. Femtosecond laser pulses were used to excite second harmonic waves from collagen harvested from rat tail tendon and a reference nonlinear crystal.
Campagnola   +16 more
arxiv   +4 more sources

Experimental Demonstration of Spectral Intensity Optical Coherence Tomography [PDF]

open access: yesarXiv, 2015
We demonstrate experimentally quantum-inspired, spectral-domain intensity optical coherence tomography. We show that the technique allows for both axial resolution improvement and dispersion cancellation compared to conventional optical coherence tomography.
Friberg, Ari T.   +3 more
arxiv   +5 more sources

Cross-Polarized Optical Coherence Tomography System with Unpolarized Light [PDF]

open access: yesPhotonics, 2022
Cross-polarized optical coherence tomography offers improved contrast for samples which can alter the polarization of light when it interacts with the sample. This property has been utilized to screen pathological conditions in several organs.
Georg R. Hartl   +3 more
doaj   +4 more sources

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