Results 31 to 40 of about 492,382 (336)

Clues from Crouzon: Insights into the potential role of growth factors in the pathogenesis of myelinated retinal nerve fibers. [PDF]

open access: yes, 2016
PurposeWe present a case of bilateral extensive peripapillary myelinated retinal nerve fibers (MRNF) in an individual with Crouzon syndrome, an inherited form of craniosynostosis caused by overactivation of fibroblast growth factor receptor 2.
Akil, Handan   +5 more
core   +7 more sources

Automatic Coregistration Between Coronary Angiography and Intravascular Optical Coherence Tomography

open access: yesJACC: Asia, 2021
This study sought to evaluate a novel approach for automatic coregistration of optical coherence tomography (OCT) and coronary angiography. Lumen diameters and side branches from both coronary angiography and OCT were used to create 2 feature sets ...
Hui Qin, MSc   +9 more
doaj   +1 more source

High-speed and widefield handheld swept-source OCT angiography with a VCSEL light source.

open access: yesBiomedical Optics Express, 2021
Optical coherence tomography (OCT) and OCT angiography (OCTA) enable noninvasive structural and angiographic imaging of the eye. Portable handheld OCT/OCTA systems are required for imaging patients in the supine position.
S. Ni   +8 more
semanticscholar   +1 more source

MF-AV-Net: an open-source deep learning network with multimodal fusion options for artery-vein segmentation in OCT angiography.

open access: yesBiomedical Optics Express, 2022
This study is to demonstrate the effect of multimodal fusion on the performance of deep learning artery-vein (AV) segmentation in optical coherence tomography (OCT) and OCT angiography (OCTA); and to explore OCT/OCTA characteristics used in the deep ...
Mansour Abtahi   +3 more
semanticscholar   +1 more source

Contribution of swept-source OCT-angiography in analysis of choroidal osteoma and its quiescent neovascular complications: A case study

open access: yesAmerican Journal of Ophthalmology Case Reports, 2020
Purpose: Choroidal osteoma (CO) is a rare benign tumor of the choroid. Improvements in Optical Coherence Tomography (OCT) technologies, notably swept-source (SS), enables a better visualization of the choroid with deeper signal penetration in the tissues.
Hussam El Chehab   +4 more
doaj   +1 more source

A Diabetic Retinopathy Classification Framework Based on Deep-Learning Analysis of OCT Angiography

open access: yesTranslational Vision Science & Technology, 2022
Purpose Reliable classification of referable and vision threatening diabetic retinopathy (DR) is essential for patients with diabetes to prevent blindness.
P. Zang   +6 more
semanticscholar   +1 more source

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

Dynamic inverse SNR-decorrelation OCT angiography with GPU acceleration.

open access: yesBiomedical Optics Express, 2022
Dynamic OCT angiography (OCTA) is an attractive approach for monitoring stimulus-evoked hemodynamics; however, a 4D (3D space and time) dataset requires a long acquisition time and has a large data size, thereby posing a great challenge to data ...
Xiaofeng Deng   +8 more
semanticscholar   +1 more source

Volumetric microvascular imaging of human retina using optical coherence tomography with a novel motion contrast technique [PDF]

open access: yes, 2009
Phase variance-based motion contrast imaging is demonstrated using a spectral domain optical coherence tomography system for the in vivo human retina. This contrast technique spatially identifies locations of motion within the retina primarily associated
Fingler, Jeff   +4 more
core   +2 more sources

Non-Invasive Diagnosis of Polypoidal Choroidal Vasculopathy as a Variant of the Course of Age-Related Macular Degeneration

open access: yesOftalʹmologiâ, 2018
Purpose: to study noninvasive diagnostic options for polypoidal choroidal vasculopathy (PCV) — a subtype of neovascular agerelated macular degeneration — by monitoring clinical progression, defining optical coherence tomography (OCT) findings specific ...
I. E. Panova   +2 more
doaj   +1 more source

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