Results 61 to 70 of about 4,056,423 (272)

An insight into Principle and Practice of Anterior Segment Optical Coherence Tomography

Pakistan Journal of Medicine and Dentistry
Proper visualization of the eye structures is the hallmark of diagnosis in eye diseases. With advent of newer techniques and instruments, the significance of anterior segment eye structures is further elaborated.
Inayatullah Khan, Kevin JosephJeromeBorges , Nuzhat Hassan, Syed NudratNawaidShah   +3 more
doaj   +1 more source

Anterior segment optical coherence tomography of intraocular lens opacification

Indian Journal of Ophthalmology, 2018
Postoperative opacification of a hydrophilic acrylic intraocular lens (IOL) is an uncommon complication. A 57-year-old diabetic female who had undergone phacoemulsification with IOL implantation in her right eye 16 years back presented with diminution of
Saurabh Choudhry, Neha Goel, Aanchal Mehta, Nidhi Mahajan   +3 more
doaj   +1 more source

Automatic segmentation of anterior segment optical coherence tomography images

Journal of Biomedical Optics, 2013
Optical coherence tomography (OCT) images can provide quantitative measurements of the eye's entire anterior segment. A new technique founded on a newly proposed level set-based shape prior segmentation model has been developed for automatic segmentation of the cornea's anterior and posterior boundaries.
Dominic, Williams, Yalin, Zheng, Fangjun, Bao, Ahmed, Elsheikh   +3 more
openaire   +2 more sources

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Optical coherence tomography for ocular surface and corneal diseases: a review

Eye and Vision, 2018
The advent of optical coherence tomography (OCT) imaging has changed the way ophthalmologists image the ocular surface and anterior segment of the eye.
Nandini Venkateswaran, Anat Galor, Jianhua Wang, Carol L. Karp   +3 more
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Patency of small laser iridotomy evaluated using anterior-segment optical coherence tomography

Clinical Ophthalmology, 2014
Seigo Nakabayashi, Motofumi Kawai, Toru Yamaguchi, Akitoshi Yoshida Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan Abstract: We report the case of a patient with recurrent acute angle-closure glaucoma who had undergone a ...
Nakabayashi S, Kawai M, Yamaguchi T, Yoshida A   +3 more
doaj  

Anterior Segment Optical Coherence Tomography: A Diagnostic Instrument for Conjunctivochalasis [PDF]

American Journal of Ophthalmology, 2010
To evaluate cross-sectional areas of conjunctivochalasis and tear meniscus using Fourier-Domain RTVue-100 optical coherence tomography (OCT) before and after conjunctival cauterization and to evaluate inter- and intraobserver reliability.Prospective, nonrandomized, consecutive case study.A total of 12 eyes of 7 patients with conjunctivochalasis (aged ...
Gumus, Koray, Crockett, Charlene Hong, Pflugfelder, Stephen C.   +2 more
openaire   +3 more sources

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source

Pediatric cornea and anterior segment imaging

As a noninvasive, well-tolerated imaging modality, anterior segment optical coherence tomography (AS-OCT) can be instrumental for visualization of pediatric cornea, ocular surface, and anterior segment abnormalities.
Ali, Asim, Zhu, Angela Y.
core   +1 more source