1. Nicolaus Copernicus University

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    1. Mentioned In 175 Articles

    2. Segmentation of flowing particles using joint spectral and time domain optical coherence tomography

      We propose a modified method of acquisition and analysis of Spectral Optical Coherence Tomography (SOCT) data to provide information about flow velocities in three dimensions. Joint Spectral and Time domain Optical Coherence Tomography (joint STdOCT) enables flow velocity assessment and segmentation ... [Proc. SPIE 7168, 71680C (2009)] published Thu Feb 19, 2009.
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    3. Three-dimensional retinal blood flow analysis using joint spectral and time domain optical coherence tomography

      In this submission we demonstrate a new application of the joint Spectral and Time domain Optical Coherence Tomography (STdOCT) technique for segmenting and measuring the retinal blood flow velocity in three dimensions. The method is based on direct detection of Doppler shift that arises in time dur ... [Proc. SPIE 7163, 71630Q (2009)] published Wed Feb 18, 2009.
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    4. Swept source OCT imaging of human anterior segment at 200 kHz

      Karol Karnowski, Michalina Gora, Bartlomiej Kaluzny et al. We present applicability of the high speed swept-source optical coherence tomography for in vivo imaging of the anterior segment of the human eye. Three dimensional imaging of the cornea with reduced motion artifacts is possible by using swept source with Fourier domain mode locking operating at 200 ... [Proc. SPIE 7163, 716308 (2009)] published Wed Feb 18, 2009.
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    5. Feature Of The Week 1/25/09: Fourier Domain a Hugh Boost to Optical Coherence Tomography for Cardiovascular Applications

      Feature Of The Week 1/25/09: Fourier Domain a Hugh Boost to Optical Coherence Tomography for Cardiovascular Applications
      ...ed to overcome scattering due to blood. This image is from a recent publication by Adam Sukiennik, et al from Nicolaus Copernicus University and shows a comparison of intravascular ultrasound (IVUS) and OCT (see Article)...
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    6. Optical Coherence Tomography for non-destructive investigations of structure of easel paintings

      In this contribution the application of Optical Coherence Tomography (OCT) for non-invasive structural imaging of easel paintings will be presented. Since the technique permits imaging semi-transparent layers accessible for infrared light, the varnish and glaze layers are usually under investigation ... [Proc. SPIE 7139, 713916 (2008)] published Tue Dec 30, 2008.
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    7. Usefulness of optical coherence tomography in the assessment of atherosclerotic culprit lesions in acute coronary syndromes. Comparison with intravascular ultrasound and virtual histology

      In this paper, we present a case of a female patient with clinically unstable angina pectoris and a bordeline stenosis in the proximal segment of the left anterior descending coronary artery as assessed by coronary angiography and intravascular ultrasound. Virtual histology revealed morphological criteria of a vulnerable plaque forming the culprit lesion. Optical coherence tomography visualized both fibrous cap fracture and a significant stenosis of a coronary artery caused by ...
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    8. Analysis of the Outer Retina Reconstructed by High-resolution, Three-dimensional Spectral Domain Optical Coherence Tomography

      ...y, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland (JJK, BLS); the Institute of Physics, Nicolaus Copernicus University, Torun, Poland (MW, MS, AS, TB, AK); the Department of Electrical Engineering a...
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    9. Projection OCT fundus imaging for visualizing outer retinal pathology in non-exudative age related macular degeneration

      ...ed States ^2 Tufts-New England Medical Center, New England Eye Center, United States ^3 Institute of Physics, Nicolaus Copernicus University in Torun, Poland ^4 UPMC Eye Center, Department of Ophthalmology, University of...
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    10. Correlation of Spectral Optical Coherence Tomography with Fluorescein and Indocyanine Green Angiography in Multiple Evanescent White Dot Syndrome

      ... Kowalczyk ^2 ^1 Department of Ophthalmology, Nicolaus Copernicus University, Poland ^2 Institute of Physics, Nicolaus Copernicus University, Poland ^* To whom correspondence should be addressed. E-mail: ...
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    11. Phase-resolved Doppler optical coherence tomography—limitations and improvements

      Anna Szkulmowska, Maciej Szkulmowski, Andrzej Kowalczyk, Maciej WojtkowskiWe describe how the simple phase difference averaging causes a systematic bias in the velocity estimation obtained by phase-resolved Fourier domain optical coherence tomography (FdOCT). The magnitude of this bias depends on the signal-to-noise ratio as well as proximity of the measured velocity to ... [Opt. Lett. 33, 1425-1427 (2008)]
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    12. Optical Coherence Tomography Scan Circle Location and Mean Retinal Nerve Fiber Layer Measurement Variability

      purpose. To investigate the effect on optical coherence tomography (OCT) retinal nerve fiber layer (RNFL) thickness measurements of varying the standard 3.4-mm-diameter circle location. methods. The optic nerve head (ONH) region of 17 eyes of 17 healthy subjects was imaged with high-speed, ultrahigh-resolution OCT (hsUHR-OCT; 501 x 180 axial scans covering a 6 x 6-mm area; scan time, 3.84 seconds) for a comprehensive sampling. This method allows for ...
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    13. Optoelectronic Applications: Nondestructive Testing - Laser-based instrumentation sheds new light on old art

      Optoelectronic Applications: Nondestructive Testing - Laser-based instrumentation sheds new light on old art
      ...Optical coherence tomography may also play a role in improving the restoration of paintings. Researchers from Nicolaus Copernicus University (Torun, Poland) have been using spectral-domain OCT to monitor Er:YAG laser abl...
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    14. 151-165 of 175 « 1 2 ... 8 9 10 11 12 »
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  2. 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.