Results 111 to 120 of about 381,977 (388)

Arterial macroaneurysm of the optic disc

open access: yesAmerican Journal of Ophthalmology Case Reports, 2018
Purpose: We present fundus and spectral domain optical coherence tomography findings of a patient with an arterial macroaneurysm of the optic disc. Observations: An 87-year-old woman presented with blurry vision and was found to have a retinal arterial ...
Cem Ozgonul, Cagri Giray Besirli
doaj  

Quantum optical coherence tomography with dispersion cancellation

open access: yes, 2001
We propose a new technique, called quantum optical coherence tomography (QOCT), for carrying out tomographic measurements with dispersion-cancelled resolution.
A. Zeilinger   +27 more
core   +1 more source

Design and characterization of SiON integrated optics components for optical coherence tomography [PDF]

open access: yes, 2009
Optical coherence tomography (OCT) is a technique for high resolution imaging of biological tissues with a depth range of a few millimeters. OCT is based on interferometry to enable depth ranging.
Driessen, A.   +7 more
core   +2 more sources

Optical coherence tomography and Doppler optical coherence tomography in the gastrointestinal tract

open access: yesWorld Journal of Gastroenterology, 2011
Optical coherence tomography (OCT) is a noninvasive, high-resolution, high-potential imaging method that has recently been introduced into medical investigations. A growing number of studies have used this technique in the field of gastroenterology in order to assist classical analyses. Lately, 3D-imaging and Doppler capabilities have been developed in
Adrian Saftoiu   +4 more
openaire   +3 more sources

Association of Retinal Neurodegeneration on Optical Coherence Tomography With Dementia: A Population-Based Study

open access: yesJAMA Neurology, 2018
Importance Retinal structures may serve as a biomarker for dementia, but longitudinal studies examining this link are lacking. Objective To investigate the association of inner retinal layer thickness with prevalent and incident dementia in a general ...
U. Mutlu   +10 more
semanticscholar   +1 more source

Preparation and Thermal Modification of Disentangled Ultrahigh‐Molecular‐Weight Polyethylene Particles for Powder‐Based Additive Manufacturing

open access: yesAdvanced Engineering Materials, EarlyView.
Ultrahigh‐molecular‐weight polyethylene powders (<≈40 μm) with a bulk density of 260 g L−1 are prepared from a silica supported bisimine pyridine iron catalyst. The nascent product is disentangled and can be thermally densified without loss of its low viscosity.
Adrian Vaghar   +4 more
wiley   +1 more source

Intraoperative detection of blood vessels with an imaging needle during neurosurgery in humans [PDF]

open access: yes, 2018
Intracranial hemorrhage can be a devastating complication associated with needle biopsies of the brain. Hemorrhage can occur to vessels located adjacent to the biopsy needle as tissue is aspirated into the needle and removed. No intraoperative technology
Jacques, Angela   +6 more
core   +3 more sources

Performance Comparison of Surface Sensitizers for Diode Laser Powder Bed Fusion of Polyamide 12

open access: yesAdvanced Engineering Materials, EarlyView.
Laser‐generated nanoparticles transform standard PA12 powders into high‐performance, dye‐free feedstocks for diode laser 3D printing. Despite identical absorbance at 808 nm, CuS, LaB6, and CB coatings reveal striking differences in fusion and strength—unlocking new design space for recyclable, industrial‐grade polymers.
Michael Willeke   +9 more
wiley   +1 more source

The use of optical coherence tomography in the assessment of diabetic retinopathy and maculopathy [PDF]

open access: yes, 2014
This review was performed to assess the use of optical coherence tomography in diabetic retinopathy and maculopathy and its application in the diagnosis and management of these conditions.
Chan, CWN   +7 more
core  

Optical Coherence Tomography for Examination of Parchment Degradation [PDF]

open access: yes, 2006
A novel application of Optical Coherence Tomography utilizing infrared light of 830 nm central wavelength for non invasive examination of the structure of parchment, some covered with iron gall ink, is presented.
Bajraszewski, T   +7 more
core   +1 more source

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