1. Nicolaus Copernicus University

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    1. Mentioned In 155 Articles

    2. Realistic simulation and experiment reveals the importance of scatterer microstructure in optical coherence tomography image formation

      Explore OSA | OSA Publishing
      Realistic simulation and experiment reveals the importance of scatterer microstructure in optical coherence tomography image formation
      Realistic simulation of image formation in optical coherence tomography, based on Maxwells equations, has recently been demonstrated for sample volumes of practical significance. Yet, there remains a limitation whereby reducing the size of cells used to construct a computational grid, thus allowing for a more realistic representation of scatterer microstructure, necessarily reduces the overall sample size that can be modelled. This is a significant problem since, as is well known ...
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      Mentions: University College London David D. Sampson Nicolaus Copernicus University

    3. Retina Tomography and Optical Coherence Tomography in Eye Diagnostic System

      Explore Home - Springer Ophthalmology
      Retina Tomography and Optical Coherence Tomography in Eye Diagnostic System
      Eye diagnostic, two-step method based on retina color image and Optical Coherence Tomography is presented in this paper. A new robust algorithm, by which various eye diseases can be diagnosed, was implemented as an essential part of the work. The approach comprises two steps. The first one deals with the analysis of retina color image. In this stage, an algorithm was implemented to especially search hard exudates. If the algorithm ...
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      Mentions: Nicolaus Copernicus University Maciej Szkulmowski

    4. Three-Dimensional Cataract Crystalline Lens Imaging With Swept-Source Optical Coherence Tomography | IOVS

      Explore IOVS Journal Ophthalmology
      Three-Dimensional Cataract Crystalline Lens Imaging With Swept-Source Optical Coherence Tomography | IOVS
      Purpose : To image, describe, and characterize different features visible in the crystalline lens of older adults with and without cataract when imaged three-dimensionally with a swept-source optical coherence tomography (SS-OCT) system. Methods : We used a new SS-OCT laboratory prototype designed to enhance the visualization of the crystalline lens and imaged the entire anterior segment of both eyes in two groups of participants: patients scheduled to undergo cataract surgery, n = 17 ...
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      Mentions: Nicolaus Copernicus University Ireneusz Grulkowski

    7. Swept source optical coherence tomography and tunable lens technology for comprehensive imaging and biometry of the whole eye

      Explore OSA | OSA Publishing Ophthalmology
      Swept source optical coherence tomography and tunable lens technology for comprehensive imaging and biometry of the whole eye
      Standard optical systems in ophthalmology are strictly dedicated either to retinal or to anterior segment imaging due to the refractive properties of the eye. We demonstrate a swept source optical coherence tomography platform with an electrically tunable lens (ETL) for versatile 3D in vivo imaging of both the eyes anterior segment and the retina. The optimized optical setup with adaptive operational states of the ETL permits focusing on the retina ...
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      Mentions: Nicolaus Copernicus University University of Western Australia Karol Karnowski

    9. Complementary use of Optical Coherence Tomography (OCT) and Reflection FTIR spectroscopy for in-situ non-invasive monitoring of varnish removal from easel paintings

      Explore ScienceDirect Art
      Complementary use of Optical Coherence Tomography (OCT) and Reflection FTIR spectroscopy for in-situ non-invasive monitoring of varnish removal from easel paintings
      Although the solvent removal of unwanted layers (e.g. aged varnishes, overpaints, oxalate patinas, dirt from easel paintings is one of the most frequently performed restoration treatments) it is questioned regarding its controllability and safety to the artwork. There is thus a need for developing suited diagnostic methodologies able to inform restorers on the chemical, optical and morphological effects of cleaning. To this aim, we have explored the possibility of ...
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      Mentions: Nicolaus Copernicus University Piotr Targowski Marcin Sylwestrzak

    10. Optical coherence tomography in diagnosis and monitoring multiple sclerosis

      Explore ScienceDirect Neurology , Ophthalmology
      Optical coherence tomography in diagnosis and monitoring multiple sclerosis
      This paper presents application of optical coherence tomography (OCT) for diagnosis and monitoring of multiple sclerosis (MS). The peripapillary retinal nerve fibre layer thinning and the reduced total macular volume analysis are shown. With the course of the MS, the severity of these abnormalities increases which reflects the progressive degeneration of retinal ganglion cells and nerve fibres. The OCT parameters are sensitive, non-invasive indicators useful in assessing the progression of ...
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      Mentions: Nicolaus Copernicus University

    11. Feature Of The Week 10/08/2017: Optical Coherence Microscopy as a Novel, Non-Invasive Method for the 4D Live Imaging of Early Mammalian Embryos

      Explore Optical Coherence Tomography News Developmental Biology
      Feature Of The Week 10/08/2017: Optical Coherence Microscopy as a Novel, Non-Invasive Method for the 4D Live Imaging of Early Mammalian Embryos
      ...d preimplantation embryo diagnostics. For more information see recent Article . Courtesy Karol Karnowski from Nicolaus Copernicus University . Imaging of living cells based on traditional fluorescence and confocal laser ...
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      Mentions: Maciej Wojtkowski Nicolaus Copernicus University Maciej Szkulmowski

    12. Classification of biological micro-objects using optical coherence tomography

      Explore OSA | OSA Publishing
      Classification of biological micro-objects using optical coherence tomography
      We report on the development of a technique for differentiating between biological micro-objects using a rigorous, full-wave model of OCT image formation. We model an existing experimental prototype which uses OCT to interrogate a microfluidic chip containing the blood cells. A full-wave model is required since the technique uses light back-scattered by a scattering substrate, rather than by the cells directly. The light back-scattered by the substrate is perturbed upon ...
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      Mentions: Maciej Wojtkowski Nicolaus Copernicus University

    13. Optical coherence microscopy as a novel, non-invasive method for the 4D live imaging of early mammalian embryos

      Explore Nature Publishing Group Developmental Biology , Microscopy
      Optical coherence microscopy as a novel, non-invasive method for the 4D live imaging of early mammalian embryos
      Imaging of living cells based on traditional fluorescence and confocal laser scanning microscopy has delivered an enormous amount of information critical for understanding biological processes in single cells. However, the requirement for a high numerical aperture and fluorescent markers still limits researchers ability to visualize the cellular architecture without causing short- and long-term photodamage. Optical coherence microscopy (OCM) is a promising alternative that circumvents the technical limitations of fluorescence imaging ...
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      Mentions: Maciej Wojtkowski Nicolaus Copernicus University Maciej Szkulmowski

    14. Twenty-five years of optical coherence tomography: the paradigm shift in sensitivity and speed provided by Fourier domain OCT

      Explore OSA | OSA Publishing
      Twenty-five years of optical coherence tomography: the paradigm shift in sensitivity and speed provided by Fourier domain OCT
      Optical coherence tomography (OCT) has become one of the most successful optical technologies implemented in medicine and clinical practice mostly due to the possibility of non-invasive and non-contact imaging by detecting back-scattered light. OCT has gone through a tremendous development over the past 25 years. From its initial inception in 1991 [Science 254 , 1178 (1991)] it has become an indispensable medical imaging technology in ophthalmology. Also in fields like cardiology ...
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      Mentions: Johannes F. de Boer Rainer A. Leitgeb Maciej Wojtkowski

    16. Massively parallel data processing for quantitative total flow imaging with optical coherence microscopy and tomography

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      Massively parallel data processing for quantitative total flow imaging with optical coherence microscopy and tomography
      We present an application of massively parallel processing of quantitative flow measurements data acquired using spectral optical coherence microscopy (SOCM). The need for massive signal processing of these particular datasets have been a major hurdle for many applications based on SOCM. In view of this difficulty, we implemented and adapted quantitative total flow estimation algorithms on graphics processing units (GPU) and achieved a 150 fold reduction in processing time when ...
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      Mentions: Nicolaus Copernicus University Ecole Polytechnique Fédérale de Lausanne Daniel Szlag
    17. 1-15 of 155 1 2 3 4 ... 9 10 11 »
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  4. About Nicolaus Copernicus University

    Nicolaus Copernicus University

    Nicolaus Copernicus University (NCU) founded in Torun in 1945 is one of the biggest academic institutions in Poland with the total number of 14 divisions, 54 faculties and 40.000 students. The Medical Physics Group is part of the Institute of Physics of the Nicolaus Copernicus University.  Department of Biophysics and Medical Physics at the Nicolaus Copernicus University.  The department members use both experimental (optics and optical spectroscopy) and theoretical (quantum chemistry and molecular dynamics) methods to investigate the structure and dynamic of biologically relevant molecules and tissues.  Nicolaus Copernicus University Collegium Medicum is the Medical College of NCU.

  5. Related Topics

    1. Photoreceptor Disruption Secondary to Posterior Vitreous Detachment as Visualized Using High-Speed Ultrahigh-Resolution Optical Coherence Tomography
      97 articles also mentioned Maciej Wojtkowski
    2. Spectral Optical Coherence Tomography in Video-Rate and 3D Imaging of Contact Lens Wear
      54 articles also mentioned Maciej Szkulmowski
    3. Optical Coherence Tomography for Non-Destructive Investigations of Structure of Objects of Art
      37 articles also mentioned Piotr Targowski
    4. Segmentation of flowing particles using joint spectral and time domain optical coherence tomography
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    5. Swept source OCT imaging of human anterior segment at 200 kHz
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