Results 31 to 40 of about 219,607 (290)

Swept-source optical coherence tomography and optical coherence tomography angiography in acquired toxoplasmic chorioretinitis: a case report

open access: yesJournal of Medical Case Reports, 2018
Purpose To describe swept-source optical coherence tomography and optical coherence tomography angiography retinal changes in a case of acute toxoplasmic chorioretinitis both at the time of diagnosis and after healing.
Diego Vezzola   +6 more
doaj   +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

Phase-dispersion optical tomography [PDF]

open access: yes, 2001
We report on phase-dispersion optical tomography, a new imaging technique based on phase measurements using low-coherence interferometry. The technique simultaneously probes the target with fundamental and second-harmonic light and interferometrically ...
Dasari, Ramachandra R.   +3 more
core   +1 more source

Phase-conjugate optical coherence tomography [PDF]

open access: yes, 2006
Quantum optical coherence tomography (Q-OCT) offers a factor-of-two improvement in axial resolution and the advantage of even-order dispersion cancellation when it is compared to conventional OCT (C-OCT).
Baris I. Erkmen   +2 more
core   +3 more sources

Tracking optical coherence tomography [PDF]

open access: yesOptics Letters, 2004
An experimental tracking optical coherence tomography (OCT) system has been clinically tested. The prototype instrument uses a secondary sensing beam and steering mirrors to compensate for eye motion with a closed-loop bandwidth of 1 kHz and tracking accuracy, to within less than the OCT beam diameter.
R Daniel, Ferguson   +4 more
openaire   +2 more sources

Optical coherence tomography in pediatric patients: a clinical review

open access: yesTherapeutic Advances in Ophthalmology, 2020
Optical coherence tomography has improved the ophthalmic clinical examination due to its ability to more accurately characterize pathology of the eye. Optical coherence tomography is now an integral imaging modality for many adult diseases of the retina ...
Bradley S. Gundlach, Irena Tsui
doaj   +1 more source

Experimental Demonstration of Spectral Intensity Optical Coherence Tomography [PDF]

open access: yes, 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 ...
Friberg, Ari T.   +3 more
core   +2 more sources

Measurement of angular distributions by use of low-coherence interferometry for light-scattering spectroscopy [PDF]

open access: yes, 2001
We present a novel interferometer for measuring angular distributions of backscattered light. The new system exploits a low-coherence source in a modified Michelson interferometer to provide depth resolution, as in optical coherence tomography, but ...
Dasari, Ramachandra R.   +3 more
core   +1 more source

Optical Coherence Tomography Angiography [PDF]

open access: yesRetina, 2015
This issue of the journal RETINA is devoted to the use of optical coherence tomography (OCT) in creation of a new form of angiography, known as OCT angiography. Optical coherence tomography produces depth-resolved evaluation of the reflectance data from tissue.
Richard F, Spaide   +2 more
openaire   +2 more sources

The Choroid and Optical Coherence Tomography

open access: yesTürk Oftalmoloji Dergisi, 2016
The choroid is the most vascular tissue in the eye and it plays an important role in the pathophysiology of various common chorioretinal diseases such as central serous retinopathy, age-related macular degeneration and degenerative myopia.
Taha Sezer   +2 more
doaj   +1 more source

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