Results 71 to 80 of about 219,607 (290)

Combining Optical Coherence Tomography and Fundus Photography to Improve Glaucoma Screening

Diagnostics, 2022
We aimed to evaluate the accuracy of glaucoma screening using fundus photography combined with optical coherence tomography and determine the agreement between ophthalmologists and ophthalmology residents.
Tomoyuki Watanabe, Yoshimune Hiratsuka, Yoshiyuki Kita, Hiroshi Tamura, Ryo Kawasaki, Tetsuji Yokoyama, Motoko Kawashima, Tadashi Nakano, Masakazu Yamada   +8 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Quantum optical coherence tomography of a biological sample

, 2008
Quantum optical coherence tomography (QOCT) makes use of an entangled-photon light source to carry out dispersion-immune axial optical sectioning. We present the first experimental QOCT images of a biological sample: an onion-skin tissue coated with gold
Abouraddy, Bahaa E.A. Saleh, Banaszek, Björn M. Reinhard, Brezinski, Darryl P. Goode, Erkmen, Fercher, Fercher, Fercher, Guoxin Rong, Harris, Hayat, Hong, Huang, Kaltenbaek, Larchuk, Lee, Linglu Yang, Magde, Magued B. Nasr, Malvin C. Teich, Mandel, Marsili, Nam Nguyen, Nasr, Nasr, Nasr, Resch, Saleh, Saleh, Schmitt, Steinberg, Takada, Teich, Teich, Tomlins, Youngquist   +37 more
core   +1 more source

Infrared imaging and spectral-domain optical coherence tomography findings correlate with microperimetry in acute macular neuroretinopathy: a case report [PDF]

, 2011
Introduction Spectral-domain optical coherence tomography findings in a patient with acute macular neuroretinopathy, and correlation with functional defects on microperimetry, are presented.
Sandeep Grover, Vikram S Brar, Ravi K Murthy, Kakarla V Chalam   +3 more
core   +2 more sources

Doppler Optical Coherence Tomography

Progress in Retinal and Eye Research, 2014
Optical Coherence Tomography (OCT) has revolutionized ophthalmology. Since its introduction in the early 1990s it has continuously improved in terms of speed, resolution and sensitivity. The technique has also seen a variety of extensions aiming to assess functional aspects of the tissue in addition to morphology. One of these approaches is Doppler OCT
Leitgeb, Rainer A., Werkmeister, René M., Blatter, Cedric, Schmetterer, Leopold   +3 more
openaire   +2 more sources

Real‐World Performance of CSF Kappa Free Light Chains in the 2024 McDonald Criteria

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Kappa free light chains (KFLCs) in the cerebrospinal fluid (CSF) have a similar performance to CSF‐restricted oligoclonal bands (OCB) for multiple sclerosis (MS) diagnosis. To help with implementation, we set out to resolve several remaining uncertainties: (1) performance in a real‐world cohort and the 2024 McDonald criteria; (2 ...
Maya M. Leibowitz, Ryan Cooper, Stefania Kaninia, Kathryn I. Challis, Will Greenway, Maria Bonello, Mahmoud Elbahnasawi, Deborah T. Shode, Dominika Gajdasik, Victor Iliev, Alison M. E. Whitelegg, Ian Galea   +11 more
wiley   +1 more source

Multimodal imaging of a patient with poppers maculopathy

GMS Ophthalmology Cases, 2020
Objective: To describe the findings and the imaging characteristics of a patient with poppers maculopathy.Methods: The ocular findings were evaluated with fundus autofluorescence imaging, spectral optical coherence tomography and optical coherence ...
Mentes, Jale, Batioglu, Figen
doaj   +1 more source

Optical coherence refraction tomography

Nature Photonics, 2019
Optical coherence tomography (OCT) is a cross-sectional, micron-scale imaging modality with widespread clinical application. Typical OCT systems sacrifice lateral resolution to achieve long depths of focus for bulk tissue imaging, and hence tend to have better axial than lateral resolution.
Kevin C. Zhou, Ruobing Qian, Simone Degan, Sina Farsiu, Joseph A. Izatt   +4 more
openaire   +2 more sources

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Optical Coherence Tomography Angiography

Southeastern European Medical Journal, 2019
Optical coherence tomography angiography (OCT-A) is a new non-invasive technology for imaging of retinal and choroidal vasculature of the macular area with resolution comparable to histological sections.
Dunja Bajtl, Mirjana Bjeloš, Mladen Bušić, Benedict Rak, Ana Križanović, Biljana Kuzmanović Elabjer   +5 more
doaj   +1 more source