1. Michalina J. Góra

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    1. Mentioned In 34 Articles

    2. Tethered capsule endomicroscopy enables less invasive imaging of gastrointestinal tract microstructure

      Tethered capsule endomicroscopy enables less invasive imaging of gastrointestinal tract microstructure
      Here we introduce tethered capsule endomicroscopy, which involves swallowing an optomechanically engineered pill that captures cross-sectional microscopic images of the gut wall at 30 m (lateral) 7 m (axial) resolution as it travels through the digestive tract. Results in human subjects show that this technique rapidly provides three-dimensional, microstructural images of the upper gastrointestinal tract in a simple and painless procedure, opening up new opportunities for screening for internal diseases.
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    3. Corneal topography with high-speed swept source OCT in clinical examination

      Corneal topography with high-speed swept source OCT in clinical examination
      We present the applicability of high-speed swept source (SS) optical coherence tomography (OCT) for quantitative evaluation of the corneal topography. A high-speed OCT device of 108,000 lines/s permits dense 3D imaging of the anterior segment within a time period of less than one fourth of second, minimizing the influence of motion artifacts on final images and topographic analysis. The swept laser performance was specially adapted to meet imaging ...
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    4. Imaging of the lens capsule with an ultrahigh-resolution spectral optical coherence tomography prototype based on a femtosecond laser

      Aim To demonstrate the applicability of ultrahigh-speed, ultrahigh-resolution spectral optical coherence tomography (SOCT) to cross-sectional imaging of the capsular bag in vivo. Methods The ultrahigh-speed and ultrahigh-resolution SOCT prototype was designed and constructed at Nicolaus Copernicus University (Torun, Poland). To obtain an ultrahigh speed up to 100 000 lines/s a new spectrometer with fast CMOS line-scan camera was built. A femtosecond laser with a central wavelength of 780 nm ...
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    5. Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings

      Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings
      With 47 samples of commercially available oil paints, the applicability of Optical coherence tomography to noninvasive tomography of paint layers was examined. Two different instruments, utilizing near-infrared light with central wavelength of 823nm and, for the first time, 1.55 μm, were used to obtain cross-sectional images. Example tomograms are given; a ray tracing correction of images is also discussed. The tests revealed that applicability of OCT is limited to ...
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    6. Ultra high-speed swept source OCT imaging of the anterior segment of human eye at 200 kHz with adjustable imaging range

      Ultra high-speed swept source OCT imaging of the anterior segment of human eye at 200 kHz with adjustable imaging range
      We present an application of in vivo anterior segment imaging of the human eye with an ultrahigh speed swept source OCT instrument. For this purpose, a dedicated OCT system was designed and constructed. This instrument enables axial zooming by automatic reconfiguration of spectral sweep range; an enhanced imaging range mode enables imaging of the entire anterior segment while a high axial resolution mode provides detailed morphological information of the chamber ...
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    7. Anterior segment imaging with Spectral OCT system using a high-speed CMOS camera

      Anterior segment imaging with Spectral OCT system using a high-speed CMOS camera
      We describe a new ultrahigh speed Spectral OCT instrument making use of a CMOS camera and demonstrate high quality in vivo imaging of the anterior segment of the human eye. The high flexibility of the designed imaging system allows a wide range of imaging protocols. Two- and three-dimensional high ... [Opt. Express 17, 4842-4858 (2009)]
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    8. Comparison of reflectivity maps and outer retinal topography in retinal disease by 3-D Fourier domain optical coherence tomography

      Comparison of reflectivity maps and outer retinal topography in retinal disease by 3-D Fourier domain optical coherence tomography
      We demonstrate and compare two image processing methods for visualization and analysis of three-dimensional optical coherence tomography (OCT) data acquired in eyes with different retinal pathologies. A method of retinal layer segmentation based on a multiple intensity thresholding algorithm was ... [Opt. Express 17, 4189-4207 (2009)]
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    9. 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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    10. 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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    11. Optical Coherence Tomography for Non-Destructive Investigations of Structure of Objects of Art

      Optical Coherence Tomography for Non-Destructive Investigations of Structure of Objects of Art
      In this contribution the Optical Coherence Tomography (OCT), as a novel tool for non-invasive structural imaging of selected objects of cultural heritage, will be reviewed. This technique relies on multispectral interference o f infrared light and therefore is well suited for investigation of transparent and semi-transparent structures. The technique originates from medical imaging and has been present in conservation science since 2004. Until now it has been successfully utilized in ...
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    12. Optical coherence tomography in art diagnostics and restoration

      An overview of the technique of optical coherence tomography (OCT) is presented, and a spectral OCT instrument especially designed for art diagnostics is described. The applicability of OCT to the stratigraphy of oil paintings is discussed with emphasis on examination of the artist’s signature. For the first time, OCT tomograms of stained glass are presented and discussed. The utilisation of Spectral OCT in real-time monitoring of varnish ablation is ...
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    13. 16-30 of 34 « 1 2 3 »
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  2. About Michalina J. Góra

    Michalina J. Góra

    Michalina Gora is a tenure researcher at the French National Center for Scientific Research (CNRS). She is leading a research group in the ICube Laboratory in Strasbourg focused on combining optical methods with robotics for comprehensive diagnosis and improved minimally invasive treatment of diseases. Her group is currently working on the integration of optical coherence tomography into a robotized flexible endoscope to improve colorectal cancer management. She graduated from the Nicolaus Copernicus University in Poland, in 2010. Subsequently, she was a postdoctoral researcher and later a junior faculty in the team of Prof. Guillermo Tearney at the Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School in Boston.