Articles that mention Nicolaus Copernicus University -Optical Coherence Tomography News

Nicolaus Copernicus University

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1. Mentioned In 179 Articles
2. Blood flow rate estimation in optic disc capillaries and vessels using Doppler optical coherence tomography with 3D fast phase unwrapping
  
  Explore OSA | OSA Publishing Feb 16 2020 Ophthalmology
  
  The retinal volumetric flow rate contains useful information not only for ophthalmo-logy but also for the diagnosis of common civilization diseases such as diabetes, Alzheimer's disease, or cerebrovascular diseases. Non-invasive optical methods for quantitative flow assessment, such as Doppler optical coherence tomography (OCT), have certain limitations. One is the phase wrapping that makes simultaneous calculations of the flow in all human retinal vessels impossible due to a very large ...
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  Mentions: Nicolaus Copernicus University Maciej Szkulmowski Iwona Gorczynska
3. In vivo brain imaging with multimodal optical coherence microscopy in a mouse model of thromboembolic photochemical stroke
  
  Explore SPIE Digital Library Jan 28 2020 Neurology
  
  We used a new multimodal imaging system that combines optical coherence microscopy and brightfield microscopy. Using this in vivo brain monitoring approach and cranial window implantation, we three-dimensionally visualized the vascular network during thrombosis, with high temporal (18 s) and spatial (axial, 2.5m; lateral, 2.2m) resolution. We used a modified mouse model of photochemical thromboembolic stroke in order to more accurately parallel human stroke. Specifically, we applied green ...
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  Mentions: Maciej Wojtkowski Nicolaus Copernicus University Maciej Szkulmowski
4. Correlation analysis of physical fitness and retinal microvasculature by OCT angiography in healthy adults
  
  Explore Journals | PLOS Dec 3 2019 Ophthalmology
  
  ... adults. PLoS ONE 14(12): e0225769. https://doi.org/10.1371/journal.pone.0225769 Editor: Ireneusz Grulkowski, Nicolaus Copernicus University, POLAND Received: April 23, 2019; Accepted: November 12, 2019; Published: Decem...
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  Mentions: National Institutes of Health Optovue Heidelberg Engineering
5. Comparison of Retinal Microvasculature in Patients With Alzheimer's Disease and Primary Open-Angle Glaucoma by Optical Coherence Tomography Angiography
  
  Explore IOVS Journal Aug 18 2019 Neurology , Ophthalmology
  
  Purpose : Comparison of retinal microvasculature within the macula and the optic nerve head in the eyes of patients with Alzheimer's disease (AD), primary open-angle glaucoma (POAG), and in a healthy control (HC) group, using optical coherence tomography angiography (OCTA). Methods : In this cross-sectional study, 27 patients with AD, 27 with POAG, and 27 healthy controls were enrolled. The Mini-Mental State Examination test was used to assess cognitive function. Ophthalmic ...
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  Mentions: Nicolaus Copernicus University
6. Development of optical coherence tomography methods for imaging and analysis of the structure and function of the choroid in the human eye.
  
  Explore lab.fizyka.umk.pl Aug 8 2019 Ophthalmology , Jobs & Studentships
  
  POSITION 1 Post-doctoral fellow position PROJECT Development of optical coherence tomography methods for imaging and analysis of the structure and function of the choroid in the human eye. Brief description of the project: http://lab.fizyka.umk.pl/670-2/ FUNDING ORGANIZATION, PROGRAMME AND PROJECT NUMBER National Science Center of Poland, OPUS 16, 2018/31/B/ST7/03138; FELLOWSHIP DURATION Maximum: 33 months (October 1st, 2019 June 12th, 2022) Minimum: 12 ...
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  Mentions: Nicolaus Copernicus University
7. Laser cleaning of paintings: in situ optimization of operative parameters through non-invasive assessment by optical coherence tomography (OCT), reflection FT-IR spectroscopy and laser induced fluorescence spectroscopy (LIF)
  
  Explore Heritage Science Jul 6 2019 Art , NDE/NDT
  
  Nowadays the use of laser technology as a highly precise tool for the cleaning of paintings is gaining ground. The development of a non-invasive analytical protocol aimed at thorough assessment of the treated surfaces and real time monitoring of the laser cleaning action is thus becoming imperative. This ensures that no side effects (e.g. discoloration, darkening, blackening) will occur on the painting surfaces due to laser ablation. In the ...
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  Mentions: Nicolaus Copernicus University Piotr Targowski Marcin Sylwestrzak
8. Feature Of The Week 05/26/2019: In vivo volumetric imaging by crosstalk-free full-field OCT
  
  Explore Optical Coherence Tomography News May 26 2019
  
  Cellular resolution imaging of biological structures has always been a challenge due to strong scattering that limits the achievable transverse resolution or imaging penetration depth. Recently, a major advancement toward high-resolution and volumetric imaging was achieved by implementing a parallel detection (i.e., full field) into Fourier-domain optical coherence tomography. The drawback of using parallel detection is that scattered light can travel laterally and get mapped improperly at a camera ...
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  Mentions: Maciej Wojtkowski Nicolaus Copernicus University Egidijus Auksorius
9. In vivo volumetric imaging by crosstalk-free full-field OCT
  
  Explore OSA | OSA Publishing May 9 2019
  
  Cellular resolution imaging of biological structures has always been a challenge due to strong scattering that limits the achievable transverse resolution or imaging penetration depth. Recently, a major advancement toward high-resolution and volumetric imaging was achieved by implementing a parallel detection (i.e., full field) into Fourier-domain optical coherence tomography. The drawback of using parallel detection is that scattered light can travel laterally and get mapped improperly at a camera ...
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  Mentions: Maciej Wojtkowski Nicolaus Copernicus University Egidijus Auksorius
10. Air-Puff-Induced Dynamics of Ocular Components Measured with Optical Biometry
  
  Explore IOVS Journal May 7 2019 Ophthalmology
  
  Purpose : To analyze the dynamics of all optical components of the eye and the behavior of the eyeball under air-puff conditions in vivo. To determine the impact of the intraocular pressure (IOP) on the air-puff-induced deformation of the eye. Methods : Twenty eyes of 20 healthy subjects were included in this study. The dynamics of the ocular components, such as the cornea, the crystalline lens, and the retina, was measured by ...
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  Mentions: Maciej Wojtkowski Nicolaus Copernicus University Bartlomiej J. Kaluzny
11. Spatiotemporal optical coherence (STOC) manipulation suppresses coherent cross-talk in full-field swept-source optical coherence tomography
  
  Explore OSA | OSA Publishing Apr 10 2019
  
  Full-field swept-source optical coherence tomography (FF-SS-OCT) provides high-resolution depth-resolved images of the sample by parallel Fourier-domain interferometric detection. Although FF-SS-OCT implements high-speed volumetric imaging, it suffers from the cross-talk-generated noise from spatially coherent lasers. This noise reduces the transversal image resolution, which in turn, limits the wide adaptation of FF-SS-OCT for practical and clinical applications. Here, we introduce the novel spatiotemporal optical coherence (STOC) manipulation. In STOC the time-varying inhomogeneous ...
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  Mentions: Maciej Wojtkowski Nicolaus Copernicus University
12. Computationally effective 2D and 3D fast phase unwrapping algorithms and their applications to Doppler optical coherence tomography
  
  Explore OSA | OSA Publishing Feb 20 2019
  
  We propose a simplification for a robust and easy to implement fast phase unwrapping (FPU) algorithm that is used to solve the phase wrapping problem encountered in various fields of optical imaging and metrology. We show that the number of necessary computations using the algorithm can be reduced compared to its original version. FPU can be easily extended from two to three spatial dimensions. We demonstrate the applicability of the ...
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  Mentions: Nicolaus Copernicus University Maciej Szkulmowski Iwona Gorczynska
13. A Micro-Tomographic Insight into the Coating Systems of Historical Bowed String Instruments
  
  Explore MDPI Open Access Journals Platform Jan 29 2019 Art , NDE/NDT , Other Non-Medical
  
  Musical instruments are tools for playing music, but for some of themmade by the most important historical violin makersthe myths hide the physical artwork. Ancient violin-making Masters developed peculiar construction methods and defined aesthetic canons that are still recognizable in their musical instruments. Recently, the focus of scientific investigations has been set on the characterization of materials and methods used by the ancient violin makers by means of several scientific ...
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  Mentions: Nicolaus Copernicus University Piotr Targowski
14. Optical Coherence Tomography (OCT) for Examination of Artworks (Book Chapter)
  
  Explore Springer US Jan 5 2019 Art , Textbooks
  
  his book details the application of advanced characterisation techniques and diagnostic tools to heritage science, including the evaluation of heritage assets condition, their preservation and restoration. It examines the use of electrochemical techniques in conservation science, with a particular focus on how to solve problems in taking on-site measurements. Specifically, it introduces readers to a new gel polymer (GPE) electrochemical cell developed by the authors for the characterisation of metallic ...
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  Mentions: Nicolaus Copernicus University Piotr Targowski Marcin Sylwestrzak
15. Optical Coherence Tomography (OCT) for Examination of Artworks (Book Chapter)
  
  Explore Home - Springer Jan 3 2019 Textbooks
  
  Optical coherence tomography is a fast, non-invasive technique of structural analysis utilising near-infrared radiation. Examples of using OCT, for obtaining cross-sectional images of objects of craftsmanship and an easel painting have been shown. Issues regarding the technique of execution and destruction phenomena were resolved non-invasively. In some cases, the secondary alterations can be identified and localised within the objects structure which helps in authentication of the artwork.
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  Mentions: Nicolaus Copernicus University Piotr Targowski Marcin Sylwestrzak
16. Megahertz-rate optical coherence tomography angiography improves the contrast of the choriocapillaris and choroid in human retinal imaging
  
  Explore OSA | OSA Publishing Dec 5 2018 Ophthalmology
  
  Angiographic imaging of the human eye with optical coherence tomography (OCT) is becoming an increasingly important tool in the scientific investigation and clinical management of several blinding diseases, including age-related macular degeneration and diabetic retinopathy. We have observed that OCT angiography (OCTA) of the human choriocapillaris and choroid with a 1.64 MHz A-scan rate swept-source laser yields higher contrast images as compared to a slower rate system operating at ...
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  Mentions: John S. Werner Nicolaus Copernicus University UC Davis
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