Results 11 to 20 of about 3,498,742 (390)

Introduction to optical coherence elastography: tutorial.

open access: yesJournal of The Optical Society of America A-optics Image Science and Vision, 2022
Optical coherence elastography (OCE) has seen rapid growth since its introduction in 1998. The past few decades have seen tremendous advancements in the development of OCE technology and a wide range of applications, including the first clinical ...
Manmohan Singh   +2 more
semanticscholar   +1 more source

Malignant hypertension – Optical coherence tomography grading and optical coherence tomography characteristics

open access: yesTNOA Journal of Ophthalmic Science and Research, 2021
This photo essay describes the fundoscopic and optical coherence tomography (OCT) grading and characteristics of hypertensive retinopathy (HTR). A 34-year-old male presented with decreased vision of 20/40 N10 in both eyes following diagnosis of malignant
Priya Rasipuram Chandrasekaran
doaj   +1 more source

Artifacts in Optical Coherence Tomography Angiography

open access: yesJournal of Ophthalmic & Vision Research, 2021
We performed a comprehensive search of the published literature in PubMed and Google Scholar to identify types, prevalence, etiology, clinical impact, and current methods for correction of various artifacts in optical coherence tomography angiography ...
Pasha Anvari   +3 more
semanticscholar   +1 more source

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

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   +1 more source

Optical coherence tomography and optical coherence tomography angiography in multiple sclerosis

open access: yesThe Egyptian Journal of Neurology, Psychiatry and Neurosurgery, 2023
Background In multiple sclerosis (MS), optical coherence tomography (OCT) has become a sensitive tool for evaluating retinal and optic nerve diseases. Optical coherence tomography angiography (OCT-A) is a novel technique that can assess the density of ...
Adel Hassanein Elsayed Gad   +3 more
doaj   +1 more source

Optical coherence encryption with structured random light

open access: yesPhotoniX, 2021
Information encryption with optical technologies has become increasingly important due to remarkable multidimensional capabilities of light fields. However, the optical encryption protocols proposed to date have been primarily based on the first-order ...
Deming Peng   +6 more
semanticscholar   +1 more source

Optical coherence transfer mediated by free electrons [PDF]

open access: yesScience Advances, 2020
Not just light waves—free electrons can also transport optical coherence through vacuum. We theoretically investigate the quantum-coherence properties of the cathodoluminescence (CL) emission produced by a temporally modulated electron beam. Specifically,
O. Kfir   +3 more
semanticscholar   +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

Cross-Polarization Optical Coherence Tomography for Brain Tumor Imaging

open access: yesFrontiers in Oncology, 2019
This paper considers valuable visual assessment criteria for distinguishing between tumorous and non-tumorous tissues, intraoperatively, using cross-polarization OCT (CP OCT)—OCT with a functional extension, that enables detection of the polarization ...
Konstantin S. Yashin   +11 more
doaj   +1 more source

Optical Coherence Tomography and Optical Coherence Tomography Angiography in Pediatric Retinal Diseases

open access: yesDiagnostics, 2023
Indirect ophthalmoscopy and handheld retinal imaging are the most common and traditional modalities for the evaluation and documentation of the pediatric fundus, especially for pre-verbal children.
Chung-Ting Wang   +6 more
doaj   +1 more source

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