Aim To evaluate optic nerve head, retinal nerve fibre layer (RNFL) and ganglion cell complex (GCC) thickness measurements in children operated for primary congenital glaucoma (PCG) using spectral domain optical coherencetomography (SDOCT). (bmj.com)
Agreement between time-domain and spectral-domain optical coherence tomography in the assessment of macular thickness in patients with idiopathic macular telangiectasia type 2. (emmes.com)
To estimate the conversion factors to transpose macular thickness measurements on time-domain (TD) to various spectral-domain (SD) optical coherence tomography (OCT) machines in patients with macular telangiectasia type 2a (MacTel). (emmes.com)
Our study aims to create a normative database of the peripapillary fibers thickness for children aged from 3 to 15 years, using a spectral-domain OCT: the Spectralis TM. (scitechnol.com)
The duplication of studies on this subject would provide a pediatric database grouping values on the peripapillary optical fiber thickness. (scitechnol.com)
Choroidal thickness in preeclampsia measured by spectral-domain optical coherence tomography. (bvsalud.org)
To compare choroidal thickness (CT) measurements in preeclamptic and healthy women in the third trimester of pregnancy using optical coherence tomography . (bvsalud.org)
Retina9
Aim To evaluate spectral domain optical coherencetomography (SD-OCT) changes in central retina and choroid in patients with sickle cell disease (SCD). (bmj.com)
Spectral-domain OCT (SD-OCT), a novel imaging technology provides high-resolution cross-sectional images of the retina with high point to point correlation with the fundus picture. (ijo.in)
Here, we report the development of an optical coherence tomography (OCT) guided micro-focal multi-color laser stimulation and electroretinogram (ERG) platform for highly localized monitoring of retina function. (nature.com)
She has a specialist interest in imaging the retina using Optical Coherence Tomography and in paediatric eye care and educational research. (city.ac.uk)
The purpose of this study is to demonstrate the application of ultrahigh-resolution Spectral Domain Optical CoherenceTomography (SD-OCT) for non contact in vivo imaging of the retina of birds of prey, which to the best of our knowledge has never been attempted. (spie.org)
Advances in Fourier-domain optical coherence tomography (Fd-OCT) permit visualization of three-dimensional morphology of in-vivo retinal structures in a way that promises to revolutionize clinical and experimental imaging of the retina. (spie.org)
Spectral-domain optical coherence tomography (SD-OCT) of the outer retina, fundus autofluorescence (FAF), and microperimetry. (unboundmedicine.com)
MAIN OUTCOME MEASURES: Spectral-domain optical coherence tomography (SD-OCT) of the outer retina, fundus autofluorescence (FAF), and microperimetry. (unboundmedicine.com)
Visual acuity3
In this case report, we describe the occurrence of multiple RPE tears with the use of intravitreal bevacizumab and also correlate the preservation of visual acuity with features seen on spectral domain optical coherencetomography. (ijo.in)
To investigate the characteristics of a spectral-domain optical coherence tomography (SD-OCT) image phenomenon known as the mirror artifact, calculate its prevalence, analyze potential risk factors, measure severity, and correlate it to spherical equivalent and central visual acuity (VA). Methods. (nyu.edu)
The purpose of this study was to compare imaging of choroidal neovascularization (CNV) using swept-source (SS) and spectral-domain (SD) optical coherence tomography angiography (OCTA). (unifesp.br)
Optical coherence tomography angiography was performed using a 100-kHz SS-OCT instrument and a 68-kHz SD-OCTA instrument (Carl Zeiss Meditec, Inc.). Both 3 x 3-and 6 x 6-mm(2) scans were obtained on both instruments. (unifesp.br)
Optical coherence tomography angiography (OCT-A) was performed to analyze the macular whole image vessel density (wiVD) and parafoveal vessel density (pfVD). (springer.com)
Wang X, Jiang C, Kong X, Yu X, Sun X (2017) Peripapillary retinal vessel density in eyes with acute primary angle closure: an optical coherence tomography angiography study. (springer.com)
Microscopy1
Super-resolution optical microscopy shows the characteristic timescale to be an inherent material property independent of polycrystallinity. (lu.se)
Ultra-high isotropic resolution imaging of retinal structures was made possible with an adaptive optics system using dual deformable mirrors and a Fourier-domain optical coherence tomography (Fd-OCT) system with correction for longitudinal chromatic aberration. (spie.org)
Optical coherence tomography (OCT) captures cross-sectional data and is used for the screening, monitoring, and treatment planning of retinal diseases. (arxiv.org)
The retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) thicknesses were assessed using spectral-domain optical coherence tomography. (springer.com)
We report the case of a 34-year-old male who presented with complete features of Kjellin's syndrome, with typical retinal findings observed on multimodal imaging (spectral domain optical coherencetomography [SD-OCT], near-infrared reflectance and autofluorescence imaging). (scielo.br)
METHODS1
With current applications primarily in medical imaging, has the advantage of a higher range since forward scattered light attenuates less with depth when compared to the specularly reflected light that is assessed in more conventional imaging methods such as optical coherence tomography. (wikipedia.org)
Spectral-domain optical coherence tomography scans and color fundus photographs were obtained of 260 patients. (nih.gov)
Temporal2
Wide angular coverage enables confocal depth sectioning, broad spectral coverage enables temporal (or coherence) depth gating, and their combination ensures maximum depth sectioning for volumetric imaging. (nature.com)
The idea lies in simultaneously high temporal and spectral resolution achievable in a single measurement, as no time-frequency uncertainty applies to the time-frequency entangled pairs. (lu.se)
Glaucoma2
Tan O, Chopra V, Lu AT, Schuman JS, Ishikawa H, Wollstein G, Varma R, Huang D (2009) Detection of macular ganglion cell loss in glaucoma by Fourier-domain optical coherence tomography. (springer.com)
Loewen NA, Xinbo Zhang O, Tan BA, Francis DS, Greenfield JS, Schuman RV, Huang D (2015) Combining measurements from three anatomical areas for glaucoma diagnosis using Fourier-domain optical coherence tomography. (springer.com)
Retinopathy3
Scholars@Duke publication: Insights into advanced retinopathy of prematurity using handheld spectral domain optical coherencetomography imaging. (duke.edu)
PURPOSE: To elucidate the subclinical anatomy of retinopathy of prematurity (ROP) using spectral domain optical coherencetomography (SD OCT). DESIGN: Prospective, observational case series. (duke.edu)
To investigate hyperreflective foci (HF) on spectral-domain optical coherence tomography in patients with Type 1 diabetes mellitus across different stages of diabetic retinopathy (DR) and diabetic macular edema (DME) and to study clinical and morphological characteristics associated with HF. (nih.gov)
Entanglement1
Adding phase information, thanks to interferometric techniques, we hope to be able to follow in time the quantum properties of the created photoelectrons, like coherence and entanglement. (lu.se)
Imaging7
Spectral domain optical coherence tomography imaging was conducted without sedation at the bedside in the neonatal intensive care unit on 1 patient. (duke.edu)
Multiple scattering low coherence interferometry (ms/LCI) is an imaging technique that relies on analyzing multiply scattered light in order to capture depth-resolved images from optical scattering media. (wikipedia.org)
Due to the dominance of forward scattering photons at deeper penetration depths, this technique enjoys superior imaging depth and high detection throughput but suffers from long signal acquisition time and poor spatial resolution inherent to time-domain techniques. (wikipedia.org)
Most optical imaging modalities have chosen to cover a wide range of illumination angles at once, instead of scanning the angles one by one. (nature.com)
These images demonstrate the hand-held SD-OCT imaging in the NICU and Spectral domain optical coherencetomography (SD-OCT) image of preterm infant fovea. (duke.edu)
Both the LenSx (Figure 1) and Catalys incorporate spectral-domain optical coherence tomography (OCT) imaging. (crstoday.com)
The LenSx Laser incorporates spectral-domain OCT imaging. (crstoday.com)
Scan2
Green line indicates site of optical coherence tomography scan. (cdc.gov)
In this study, we simulate reduced axial scan (A-scan) resolution by Gaussian windowing in the spectral domain and investigate the use of a learning-based approach for image feature reconstruction. (arxiv.org)
Bandwidth2
By constructing experimental systems scanning both wavelength and illumination angle of the light source, we demonstrated a 32-fold increase in the use of signal waves compared with that of existing 2D-based approaches and achieved ultrahigh volumetric resolution (lateral resolution: 0.41 \(\mu m\) , axial resolution: 0.60 \(\mu m\) ) even within complex scattering medium owing to the optimal coherent use of the broad spectral bandwidth (225 nm). (nature.com)
Technological developments to increase the speed of acquisition often results in systems with a narrower spectral bandwidth, and hence a lower axial resolution. (arxiv.org)
Findings1
Aim: To describe the tomographic findings of a case of myopic traction maculopathy using Spectral Domain Optical CoherenceTomography (SD-OCT) and present the results of its surgical intervention. (hippokratia.gr)
Patients2
Myopic foveoschisis (MF) is one of the major causes of vision reduction in myopic patients, and its presence has been increasingly recognized with the advent of optical coherence tomography (OCT). 1 , 2 The estimated incidence of MF ranges from 8%-34% in eyes with high myopia. (dovepress.com)
All patients were monitored using spectral-domain optical coherence tomography and had an average follow-up of 2.3 years. (visivite.com)
Coherent1
For the electronic part of the system, we focus on using quantum dots that enable to build photodetectors in the microwave domain and strong coherent coupling between electric charge and microwave photons in the electrical circuits. (lu.se)
Resolution1
Likewise, a broadband light source containing multiple wavelengths is illuminated at once to gain depth resolution in time-domain optical coherence tomography (OCT) 15 . (nature.com)
Density2
By varying the frequency separation of the two spectral components of the probe pulse, we determine the populations and coherences of the density matrix. (lu.se)
Here, the statistically correct power spectral density (PSD) estimation method applicable for fluctuations of any complexity is employed. (lu.se)
Photons1
As in traditional OCT, the beam interference coherence gates the light in order to filter out photons that have not traveled a sufficient path length. (wikipedia.org)
Study1
In the present study, we measured the collagen level by spectral domain polarization-sensitive optical coherence tomography (SD-PS-OCT) to assess anastomosis healing. (korea.ac.kr)
Time-domain3
Early implementations of ms/LCI were in the time domain using lock-in detection in order to take advantage of long scanning depths as well narrow detection bandwidths. (wikipedia.org)
In time-domain ms/LCI, long integration times and depth scans provide improved contrast and sensitivity while sacrificing acquisition time. (wikipedia.org)
The use of a balanced photoreceiver is helpful to increase signal-to-noise ratio in time-domain ms/LCI but is difficult to do in spectral-domain ms/LCI because the increased depth range results in higher modulation frequencies which are difficult to calibrate between spectrometers Matthews, Thomas E. (wikipedia.org)
Interaction1
We also aim for example to increase the coherence of these states and their interaction strength to build electro-optical systems, devices and sensors. (lu.se)
Surgery1
Although this information is obtained preoperatively with optical biometry, the ability to visualize the anatomy in real time during laser use allows the surgeon to anticipate needs prior to surgery that may improve outcomes. (crstoday.com)
Acquisition1
By adapting techniques used in spectroscopic OCT, ms/LCI can be done in the spectral domain in order to provide faster acquisition time and various multispectral capabilities, including the use of localized contrast agents. (wikipedia.org)
Depth1
A broadband supercontinuum laser source as well as a customized spectrometer detector are implemented in order to access the spectral domain, and a short-time Fourier transform method is used to process the interferograms as in spectroscopic OCT. Because of enhanced depth penetration, this technique's most promising applications lie in resolving features that exist deeper in tissue than other techniques such as OCT are capable of doing. (wikipedia.org)
Quantum2
Artist view of a quantum optical trap with ultra-cold fermions. (lu.se)
This research lies at the crossing between three different areas of atomic, molecular, and optical (AMO) physics: attosecond science, photoionization /dissociation of atoms and molecules, and quantum information. (lu.se)
Central1
Their duration varies from a few tens to a few hundred attoseconds, while the central photon energy goes from the extreme ultraviolet (XUV) to the X-ray domain. (lu.se)
Results1
Random motion of water molecules (diffusion) in the presence of a strong magnetic gradient results in MR signal loss as a result of the dephasing of spin coherence ( Fig. 1 ). (ajronline.org)
Loss1
Spectral domain optical coherence tomography (SD-OCT) showed VMA release and almost complete loss of the ellipsoid layer. (medscape.com)