Results 71 to 80 of about 478,081 (305)

Assessing the Spatial Relationship Between Fixation and Foveal Specializations [PDF]

open access: yes, 2016
Increased cone photoreceptor density, an avascular zone (FAZ), and the displacement of inner retinal neurons to form a pit are distinct features of the human fovea.
Carroll, Joseph   +5 more
core   +2 more sources

Using Hydrogel Beads as a Blood Model in Optical Coherence Tomography

open access: yesCurrent Directions in Biomedical Engineering, 2023
Optical Coherence Tomography (OCT) is a standard imaging procedure in ophthalmology. OCT Angiography is a promising extension, allowing for fast and non-invasive imaging of the retinal vasculature analyzing multiple OCT scans at the same place.
Hentschel Gesine   +4 more
doaj   +1 more source

PDZK1 Protects Against RPE Senescence by Targeting the 14‐3‐3ε‐mTOR Axis to Attenuate Early Diabetic Retinopathy

open access: yesAdvanced Science, EarlyView.
PDZK1 down‐regulation couples high‐glucose stress to RPE senescence via a PDZK1–14‐3‐3ε–mTOR axis. Restoring PDZK1 or clearing senescent cells rescues retinal homeostasis and mitigates early diabetic retinopathy (DR). This study provides direct evidence linking RPE cell senescence to DR pathogenesis and reveals a promising therapeutic strategy for DR ...
Jian Zhao   +6 more
wiley   +1 more source

Optical Coherence Tomography Angiography Vessel Density in Healthy, Glaucoma Suspect, and Glaucoma Eyes. [PDF]

open access: yes, 2016
PurposeThe purpose of this study was to compare retinal nerve fiber layer (RNFL) thickness and optical coherence tomography angiography (OCT-A) retinal vasculature measurements in healthy, glaucoma suspect, and glaucoma patients.MethodsTwo hundred sixty ...
Belghith, Akram   +11 more
core  

Regulating the Interaction Between Near‐Infrared Dye and Endogenous Albumin for Concurrent Imaging Skin Inflammation and Neovascularization After Flap Transplantation

open access: yesAggregate, EarlyView.
This study identified a near‐infrared (NIR) dye with superior covalent albumin‐binding capability, enabling high‐contrast imaging of skin inflammation with minimal background interference. This work further demonstrated dual‐channel imaging of skin barrier disruption and neovascularization in flap transplantation models, and allowed simultaneous ...
Yijing Du   +5 more
wiley   +1 more source

A New Approach in Risk Stratification by Coronary CT Angiography. [PDF]

open access: yes, 2014
For a decade, coronary computed tomographic angiography (CCTA) has been used as a promising noninvasive modality for the assessment of coronary artery disease (CAD) as well as cardiovascular risks.
Budoff, Matthew J, Nakanishi, Rine
core   +3 more sources

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo   +3 more
wiley   +1 more source

Quantitative optical coherence tomography angiography of vascular abnormalities in the living human eye [PDF]

open access: yes, 2015
Retinal vascular diseases are important causes of vision loss. A detailed evaluation of the vascular abnormalities facilitates diagnosis and treatment in these diseases.
Bailey, Steven T.   +11 more
core   +1 more source

Ergonomic handheld OCT angiography probe optimized for pediatric and supine imaging.

open access: yesBiomedical Optics Express, 2019
OCT angiography is a functional extension of OCT that allows for non-invasive imaging of retinal microvasculature. However, most current OCT angiography systems are tabletop systems that are typically used for imaging compliant, seated subjects.
C. Viehland   +8 more
semanticscholar   +1 more source

Self‐Supervised Learning‐Based Framework for Speckle Reduction of Optical Coherence Tomography Images Using Frame Interpolation

open access: yesAdvanced Intelligent Systems, EarlyView.
In summary, a self‐supervised end‐to‐end framework for OCT image despeckling is proposed, without access to unpaired noisy–clean images or paired noisy–noisy images for training. The despeckling performance has been evaluated on 150 subjects from five retina datasets (121 subjects) and one middle ear dataset (29 subjects). Optical coherence tomography (
Zhiyi Jiang   +3 more
wiley   +1 more source

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