Results 81 to 90 of about 219,607 (290)

Quantitative analysis of optical coherence tomography angiography metrics in diabetic retinopathy

Therapeutic Advances in Ophthalmology, 2020
Purpose: To evaluate the correlation of the visual acuity and diabetic retinopathy stage using optical coherence tomography and optical coherence tomography angiography metrics. Methods: In this prospective study, optical coherence tomography and optical
Hamid Safi, Pasha Anvari, Dariush Naseri, Hamideh Shenazandi, Pegah Kazemi, Pirouzeh Farsi, Sanaz Jafari, Ahad Sedaghat, Mehdi Yaseri, Khalil Ghasemi Falavarjani   +9 more
doaj   +1 more source

Long wavelength optical coherence tomography for painted objects [PDF]

, 2013
Optical Coherence Tomography has been successfully applied to the imaging of painted objects in recent years. However, a significant limitation is the low penetration depth of OCT in paint because of the high opacity of paint due to either scattering or ...
Cheung, CS, Clarkson, WA, Daniel, J, Liang, H, Tokurakawa, M   +4 more
core   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Line Field Optical Coherence Tomography

Photonics, 2022
The line field (LF) design choice for the lateral image formation mechanism (lateral format) has historically been a fraction of the whole optical coherence tomography (OCT) field.
Samuel Lawman, Zijian Zhang, Yao-Chun Shen, Yalin Zheng   +3 more
doaj   +1 more source

A model for simulating speckle-pattern evolution based on close to reality procedures used in spectral-domain OCT

, 2014
A robust model for simulating speckle pattern evolution in optical coherence tomography (OCT) depending on the OCT system parameters and tissue deformation is reported.
Gelikonov, G. V., Gelikonov, V. M., Matveev, L. A., Matveyev, A. L., Zaitsev, V. Yu.   +4 more
core   +1 more source

Optical coherence tomography

Journal of Biomedical Optics, 1996
This paper gives an introduction to optical coherence tomography (OCT), explains its basic principles, and discusses the information content of OCT images. Various interferometric techniques used in OCT are reviewed and a short survey of results obtained so far in different fields of application and possible future developments are presented.
openaire   +2 more sources

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano, Giacomo Boffa, Maria Petracca, Marta Ponzano, Nicole Graziano, Claire Wigley, Claire Riley, Jonathan Howard, Pietro Bontempi, Sylvia Klineova, Fred Lublin, Matilde Inglese   +11 more
wiley   +1 more source

Polarization-sensitive quantum-optical coherence tomography

, 2004
We set forth a polarization-sensitive quantum-optical coherence tomography (PS-QOCT) technique that provides axial optical sectioning with polarization-sensitive capabilities.
A. F. Abouraddy, A. F. Fercher, A. F. Fercher, Alexander V. Sergienko, Bahaa E. A. Saleh, D. Huang, D. N. Klyshko, D. N. Klyshko, E. D. J. Smith, Giovanni Di Giuseppe, J. F. de Boer, J. G. Fujimoto, J. G. Fujimoto, M. C. Teich, M. C. Teich, M. R. Hee, M. R. Hee, Malvin C. Teich, Mark C. Booth, T. S. Larchuk, W. Drexler   +20 more
core   +1 more source

Cellular Imaging Of The Tapetal-like Reflex In Carriers Of RPGR-associated Retinopathy [PDF]

, 2017
PURPOSE: To examine the features of the tapetal-like reflex (TLR) in female carriers of RPGR-associated retinopathy by means of adaptive optics scanning light ophthalmoscopy (AOSLO) and spectral domain optical coherence tomography.
Carroll, J, Dubra, A, Kalitzeos, A, Kasilian, M, Langlo, C, Michaelides, M, Samra, R, Strampe, M, Tee, JJL, Webster, AR   +9 more
core   +1 more source

Interleaved optical coherence tomography

Optics Express, 2013
We present a novel and cost-effective technique--interleaved optical coherence tomography (iOCT)--to enhance the imaging speed of swept source OCT systems by acquiring data from multiple lateral positions simultaneously during a single wavelength sweep, using a single detector and a virtually imaged phase array (VIPA) as a multi-band demultiplexer ...
Hee Yoon, Lee, Helge, Sudkamp, Tahereh, Marvdashti, Audrey K, Ellerbee   +3 more
openaire   +2 more sources