AngiographyDomain optical coherenceVisible-light optical coherenceRetinaSpectralSwept source opticalVisual AcuityConvolutional Neural NetworksDiagnosisPhotodynamic therapyMeasurementsInterferometryCross-sectionalParametersReflectometryMeasurementBedsideTechniqueFundusOpticsScanSystemImagingInvestigateStudyEvaluateApplicationsInternalDiagnosticImagesResolutionAxisProbePerformance
Angiography10
- Optical coherence tomography angiography (OCT A) is an emerging technology to image the vascular system of the eye. (hindawi.com)
- S. Makita, T. Fabritius and Y. Yasuno, "Quantitative Retinal-Blood Flow Measurement with Three-Dimen- sional Vessel Geometry Determination Using Ultrahigh- Resolution Doppler Optical Coherence Angiography," Optics Letters, Vol. 33, No. 8, 2008, pp. 836-838. (scirp.org)
- 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)
- All patients underwent standard ophthalmological examination including standard automatic perimetry according to the 24-2 program, optical coherence tomography angiography (OCT-A) of the macular area and optic disc. (physiciansweekly.com)
- Purpose: To evaluate the sensitivity of normalized blood flow index (NBFI) for detecting early diabetic retinopathy (DR). Methods: Optical coherence tomography angiography (OCTA) images of 30 eyes from 20 healthy controls, 21 eyes of diabetic patients with no DR (NoDR) and 26 eyes from 22 patients with mild non-proliferative DR (NPDR) were analyzed in this study. (arxiv.org)
- Our retina diagnostic testing procedures include retinal exams , fluorescein angiography, ICG angiography , optical coherence tomography , and ultrasound . (illinoisretina.com)
- Optical coherence tomography and fluorescein angiography (FA) were performed before treatment and at subsequent follow-up examinations in all eyes. (qxmd.com)
- Optical coherence tomography appears to be useful in monitoring the retinal changes that occur following PDT of CNV and may assist in understanding the changes observed on angiography. (qxmd.com)
- Important aspects of workup regarding diabetic retinopathy include fasting glucose and hemoglobin A1c, fluorescein angiography, optical coherence tomography, and B-scan ultrasonography. (medscape.com)
Domain optical coherence10
- The retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) thicknesses were assessed using spectral-domain optical coherence tomography. (springer.com)
- 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)
- Aim To evaluate spectral domain optical coherence tomography (SD-OCT) changes in central retina and choroid in patients with sickle cell disease (SCD). (bmj.com)
- 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 coherence tomography. (ijo.in)
- Scholars@Duke publication: Insights into advanced retinopathy of prematurity using handheld spectral domain optical coherence tomography imaging. (duke.edu)
- PURPOSE: To elucidate the subclinical anatomy of retinopathy of prematurity (ROP) using spectral domain optical coherence tomography (SD OCT). DESIGN: Prospective, observational case series. (duke.edu)
- Spectral domain optical coherence tomography imaging was conducted without sedation at the bedside in the neonatal intensive care unit on 1 patient. (duke.edu)
- To examine if racial differences in Bruch's membrane opening-minimum rim width (BMO-MRW) in spectral domain optical coherence tomography (SDOCT) exist, specifically between people of African descent (AD) and European descent (ED) in normal ocular health. (cdc.gov)
- However, these preliminary BMO-MRW studies that generated normative databases have generally been performed in populations of European descent (ED). As the BMO-MRW parameter becomes more widely implemented in spectral-domain optical coherence tomography (SDOCT) through automated algorithms, it becomes necessary to understand how this parameter is affected by race. (cdc.gov)
Visible-light optical coherence4
- We recently introduced visible-light optical coherence tomography fibergraphy (vis-OCTF), a technique for directly visualizing and analyzing mouse RGC axon bundles in vivo . (jneurosci.org)
- We demonstrated visible-light optical coherence tomography fibergraphy (vis-OCTF) to directly quantify global and regional RGC axon bundle organizations in vivo as a new biomarker for RGC health. (jneurosci.org)
- Water wavenumber calibration for visible light optical coherence tomography. (escholarship.org)
- Visible light optical coherence tomography (OCT) is emerging for spectroscopic and ultrahigh resolution imaging, but challenges remain. (escholarship.org)
Retina5
- Optical coherence tomography (OCT) of the affected members showed the central loss of outer retina structure. (molvis.org)
- The advanced diagnostic tool known as Optical Coherence Tomography (OCT) is a safe, non-contact, and non-invasive imaging technique that is commonly used by retina specialists to check on various aspects of vision health. (illinoisretina.com)
- Optical Coherence Tomography uses light waves to take cross-section images of your retina, which is the area of light-sensitive cells at the back of your eye that is responsible for receiving light and transmitting it into messages that are sent up to the brain. (tribecaeyeandhealth.com)
- Optical coherence tomography (OCT) uses light to generate a cross-sectional image of the retina. (medscape.com)
- A subretinal hemorrhage is seen as a layer of moderate reflectivity that elevates the neurosensory retina and causes optical shadowing, resulting in a lower reflectivity of the underlying RPE and choroid. (medscape.com)
Spectral1
- Short-coherence-length light can be obtained using a superluminescent diode (SLD) with a broad spectral bandwidth or a broadly tunable laser with narrow linewidth. (wikipedia.org)
Swept source optical2
- S. K. Dubey, D. S. Mehta, A. Anand and C. Shakher, "Simultaneous Topography and Tomography of Latent Fingerprints Using Full-Field Swept-Source Optical Coherence Tomography," Journal of Optics A: Pure and Applied Optics, Vol. 10, No. 1, 2008, Article ID: 015307. (scirp.org)
- We demonstrate a swept-source optical coherence tomography system, including a broadband frequency sweeping light source with the central wavelength around 1250 nm, to achieve an axial resolution of 2.4 microns in tissue. (researchwithrutgers.com)
Visual Acuity1
- To investigate the relationship between optical coherence tomography (OCT)-derived measurements of retinal morphology and visual acuity in patients with neovascular age-related macular degeneration (AMD). (nih.gov)
Convolutional Neural Networks1
- dblp: Choroid segmentation from Optical Coherence Tomography with graph-edge weights learned from deep convolutional neural networks. (uni-trier.de)
Diagnosis1
- However, since the introduction of optical coherence tomography (OCT) in 1991, it has become an invaluable tool in the diagnosis and management of different retinal disorders including ME. (bmj.com)
Photodynamic therapy3
- Optical coherence tomography findings following photodynamic therapy of choroidal neovascularization. (qxmd.com)
- To develop an optical coherence tomography (OCT) classification system that monitors the response of eyes treated with photodynamic therapy (PDT) with verteporfin for subfoveal choroidal neovascularization (CNV) from age-related macular degeneration (AMD). (qxmd.com)
- Rogers and coworkers have proposed an optical coherence tomography (OCT) classification scheme of CNV following photodynamic therapy (PDT). (medscape.com)
Measurements4
- The coherence parameters of the SXR radiation allowed for the OCT measurements of a bulk multilayer structure with 10 nm period and 40% bottom layer thickness to period ratio, with an axial resolution of about 2 nm and detect multilayer interfaces up to a depth of about 100 nm. (nature.com)
- In the paper, detailed information about the source, its optimization, the optical system, OCT measurements and the results are presented and discussed. (nature.com)
- Association between Optical Coherence Tomography Measurements and Clinical Parameters in Idiopathic Intracranial Hypertension. (bvsalud.org)
- To correlate optical coherence tomography (OCT) measurements with clinical parameters in idiopathic intracranial hypertension (IIH). (bvsalud.org)
Interferometry4
- Optical coherence tomography (OCT) is an imaging technique that uses interferometry with short-coherence-length light to obtain micrometer-level depth resolution and uses transverse scanning of the light beam to form two- and three-dimensional images from light reflected from within biological tissue or other scattering media. (wikipedia.org)
- In the decade preceding the invention of OCT, interferometry with short-coherence-length light had been investigated for a variety of applications. (wikipedia.org)
- Optical coherence tomography (OCT) is an emerging noninvasive imaging technique, which is based on low-coherence interferometry. (escholarship.org)
- OCT is an optical interferometry technique for acquiring cross-sectional images of tissue and other scattering materials with micrometer resolution. (ntt-review.jp)
Cross-sectional2
- The higher speed allowed for 3-dimensional imaging, which can be visualized in both en face and cross-sectional views. (wikipedia.org)
- Optical coherence tomography (OCT) using a swept light source can acquire cross-sectional images of tissue with micrometer resolution for biomedical applications. (ntt-review.jp)
Parameters1
- To report the frequency and severity of optical coherence tomography (OCT) retinal thickness measurement errors and to describe parameters that predict these errors. (nih.gov)
Reflectometry2
- The article introduced the term "OCT" to credit its derivation from optical coherence-domain reflectometry, in which the axial resolution is based on temporal coherence. (wikipedia.org)
- Interferometric reflectometry of biological tissue, especially of the human eye using short-coherence-length light (also referred to as partially-coherent, low-coherence, or broadband, broad-spectrum, or white light) was investigated in parallel by multiple groups worldwide since 1980s. (wikipedia.org)
Measurement2
- We present a two-dimensional optical coherence vibration tomography (2DOCVT) system with an ultra-precision displacement resolution of ~0.1 nm that is capable of in site real-time absolute displacement measurement of structural line vibrations. (strath.ac.uk)
- two-dimensional optical coherence tomography, absolute displacement measurement, response only modal analysis, Naval architecture. (strath.ac.uk)
Bedside2
- Bedside Optical Coherence Tomography for Terson's Syndrome screening in Acute Subarachnoid Hemorrhage: A pilot study. (cns.org)
- Our goal was to evaluate the feasibility and potential role of bedside optical coherence tomography (OCT) in Terson's Syndrome (TS) in patients with acute subarachnoid hemorrhage (aSAH) and its potential role in blindness prevention. (cns.org)
Technique2
- R. K. Manapuram, M. Ghosn and K. V. Larin, "Identification of Artificial Fingerprints Using Optical Coherence Tomography Technique," Asian Journal of Physics, Vol. 15, 2006, pp. 15-27. (scirp.org)
- Optical Coherence Tomography (OCT) is an imaging technique that provides high resolution, non-destructive, in situ, real-time reflectivity profiling of non-absorptive samples. (teracomm.com)
Fundus1
- The retinal disease screening study: prospective comparison of nonmydriatic fundus photography and optical coherence tomography for detection of retinal irregularities. (cns.org)
Optics4
- M. Nasiri-Avanaki, A. Meadway, A. Bradu, R. Khoshki, A. Hojjatoleslami and A. Podoleanu, "Anti-Spoof Reliable Biometry of Fingerprints Using En-Face Optical Coherence Tomography," Optics and Photonics Journal , Vol. 1 No. 3, 2011, pp. 91-96. (scirp.org)
- Optical Coherence Tomography gives a broad treatment of the subject which will include 1)the optics, science, and physics needed to understand the technology 2) a description of applications with a critical look at how the technology will successfully address actual clinical need, and 3) a discussion of delivery of OCT to the patient, FDA approval and comparisons with available competing technologies. (123library.org)
- The heart of the book covers the essential topics of tissue optics, as well as optical imaging system design concepts. (lu.se)
- This entry-level textbook, covering the area of tissue optics, is based on the lecture notes for a graduate course (Bio-optical Imaging) that has been taught six times by the authors at Texas A&M University. (lu.se)
Scan2
- What happens during an Optical Coherence Tomography scan? (tribecaeyeandhealth.com)
- Arrow indicates direction of the optical coherence tomography scan. (cdc.gov)
System4
- This piece of equipment is called 3D Optical Coherence Tomography system (3D OCT). (selectspecs.com)
- Lunawave is an Optical Frequency Domain Imaging (OFDI) system to be used with a dedicated FastView coronary catheter for imaging and visualizing the coronary artery lumen and the vessel surface layer. (terumo-europe.com)
- Remove/replace the probe from the central unit (hardwired in current system), which requires adding an optical connection without losing optical performance. (porticos.net)
- Visual system function and structure were assessed for 8 weeks after exposure using optokinetic nystagmus and optical coherence tomography. (cdc.gov)
Imaging8
- Optical coherence tomography (OCT) is a relatively new imaging technology which can produce high resolution images of three-dimensional structures. (scirp.org)
- Enhanced depth imaging optical coherence tomography of optic nerve head drusen. (cns.org)
- Optical coherence tomography (OCT) has attracted attention because of its potential use as a medical imaging technology [1]. (ntt-review.jp)
- Optical Coherence Tomography is a non-invasive imaging test that may be performed as a standard part of your regular, comprehensive exams, or you may be able to request this test as an addition to your usual exam. (tribecaeyeandhealth.com)
- Optical Coherence Tomography is a new medical high-resolution imaging technology which offers distinct advantages over current medical imaging technologies and is attracting a large number of researchers. (123library.org)
- Katia Del Rio-Tsonis, Ph.D., of Miami University, Ohio, uses a 3D imaging technology called optical coherence tomography (OCT) to watch newts' lenses regenerate. (medlineplus.gov)
- After the fundamentals of photon transport in biological tissues are established, various optical imaging techniques for biological tissues are covered. (lu.se)
- The imaging modalities include ballistic imaging, quasi-ballistic imaging (optical coherence tomography), diffusion imaging, and ultrasound-aided hybrid imaging. (lu.se)
Investigate1
- In this study, we used optical coherence tomography (OCT) to extensively investigate, for the first time, the effect that microneedle (MN) geometry (MN height, and MN interspacing) and force of application have upon penetration characteristics of soluble poly(methylvinylether-co-maleic anhydride, PMVE/MA) MN arrays into neonatal porcine skin in vitro. (unboundmedicine.com)
Study3
- TY - JOUR T1 - Optical coherence tomography is a valuable tool in the study of the effects of microneedle geometry on skin penetration characteristics and in-skin dissolution. (unboundmedicine.com)
- Objectives: This study sought to assess stent strut coverage, malapposition, protrusion, and coronary evaginations as markers of healing 5 years after implantation of sirolimus-eluting stents (SES) and paclitaxel-eluting stents (PES), by optical coherence tomography (OCT). Background: Early-generation drug-eluting stents have been shown to delay vascular healing. (eur.nl)
- Optical coherence tomography study of healing characteristics of paclitaxel-eluting balloons vs. everolimus-eluting stents for in-stent restenosis: the SEDUCE (Safety and Efficacy of a Drug elUting balloon in Coronary artery rEstenosis) randomised clinical trial. (umassmed.edu)
Evaluate1
- Two En-Face OCT systems are used to evaluate the need for high resolution and conclusions are drawn in terms of the most potential commercial route to ex- ploitation. (scirp.org)
Applications1
- Provides non-scientists and non-engineers basic understanding of Optical Coherence Tomography applications and issues. (123library.org)
Internal2
- Optical coherence tomography (OCT) allows one to image an internal structure of the investigated sample in a noninvasive and nondestructive way 1 . (nature.com)
- OCT is similar to the technology associated with computed tomography (CT) scans of internal organs. (illinoisretina.com)
Diagnostic1
- Optical coherence tomography (OCT) is a non-contact, diagnostic method that uses infrared light, which allows the analysis of the retinal structure by means of high-resolution tomographic cross sections. (bmj.com)
Images1
- Bioptigen (now part of Leica Microsystems ) Optical Coherence Tomography (OCT) systems provide ophthalmologists with a gentle, contact-free solution to quickly create real-time, high-definition 3D images of eye tissue that is easy on patients and captures the right data the first time, every time. (porticos.net)
Resolution1
- Optical super-resolution microscopy of molecular mechanisms of disease. (lu.se)
Axis2
- Giving a new physical interpretation to the principle of longitudinal coherence control, we propose an improved method for synthesizing a desired spatial coherence function along the longitudinal axis of light propagation. (spie.org)
- By controlling the irradiance of an extended quasi-monochromatic spatially incoherent source with a spatial light modulator, we generated a special optical field that exhibits high coherence selectively for the particular pair of points at the specified locations along the axis of beam propagation. (spie.org)
Probe1
- In the end, a modular design (separate computing, optical, probe, and cart modules) met all the needs and resulted in a product with more functionality, practicality, and appeal. (porticos.net)
Performance1
- Performance was maximized by a clever arrangement of the computing components to optimize cooling and by isolating the optical components. (porticos.net)