1. Johannes Kepler University of Linz

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    1. Mentioned In 38 Articles

    2. Impact of Preinjection Spectral Domain Optical Coherence Tomography Findings in the Use of Intravitreal Ocriplasmin in a Clinical Setting

      Impact of Preinjection Spectral Domain Optical Coherence Tomography Findings in the Use of Intravitreal Ocriplasmin in a Clinical Setting
      To investigate the impact of spectral domain optical coherence tomography (SD-OCT) morphological predictive markers on visual acuity and outcome using ocriplasmin for macular hole and vitreomacular traction syndrome. Methods: A series of 40 patients in a retrospective study received intravitreal ocriplasmin. The primary endpoint was defined as morphological resolution of vitreomacular traction or closure of a macular hole. We analyzed the impact of pre- and postinjection SD-OCT findings on the ...
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    3. Corneal Epithelial Remodeling Induced by Small Incision Lenticule Extraction (SMILE)

      Corneal Epithelial Remodeling Induced by Small Incision Lenticule Extraction (SMILE)
      Purpose : To assess the reactive changes of the corneal epithelial thickness (ET) profile induced by small incision lenticule extraction (SMILE) for treatment of myopia. Methods : This prospective observational study included 46 eyes of 23 patients that were scheduled for myopic SMILE. High-resolution spectral-domain optical coherence tomography (SD-OCT) and a custom image segmentation algorithm were applied to measure corneal ET at multiple time points within the central 5-mm zone. Postoperative ET ...
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    4. Semiautomated SD-OCT Measurements of Corneal Sublayer Thickness in Normal and Post-SMILE Eyes

      Semiautomated SD-OCT Measurements of Corneal Sublayer Thickness in Normal and Post-SMILE Eyes
      Purpose: To test the reliability of a novel algorithm for measuring corneal epithelial thickness (ET) and stromal thickness of normal eyes and post-small incision lenticule extraction (SMILE) corneas with spectral-domain optical coherence tomography. Methods: In this prospective observational study, a customized semiautomated software algorithm was developed and applied to measure corneal ET and stromal thickness along the horizontal corneal meridian. Measurements were performed by 2 examiners in a randomized fashion ...
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    5. Optical coherence tomography based particle image velocimetry (OCT-PIV) of polymer flows

      Optical coherence tomography based particle image velocimetry (OCT-PIV) of polymer flows
      The measurement of spatially resolved velocity distributions is crucial for modelling flow and for understanding properties of materials produced in extrusion processes. Traditional methods for flow visualization such as particle image velocimetry (PIV) rely on optically transparent media and cannot be applied to turbid polymer melts. Here we present optical coherence tomography as an imaging technique for PIV data processing that allows for measuring a sequence of time resolved images ...
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    6. Feature Of The Week 5/25/14: Exploiting Advanced Low Coherence Interferometric Imaging Techniques for Material Research Applications

      Feature Of The Week 5/25/14: Exploiting Advanced Low Coherence Interferometric Imaging Techniques for Material Research Applications
      ... corrosion processes, like filiform corrosion.For more information see [4,5]. Courtesy Bettina Heise from the Johannes Kepler University of Linz. References:[1] Heise, B. et al., Full Field Optical Coherence Microsco...
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    7. Low coherence interferometric second harmonic generation microscopy for non-destructive material testing using a broadband 1550 nm fs-fiber laser

      Low coherence interferometric second harmonic generation microscopy for non-destructive material testing using a broadband 1550 nm fs-fiber laser
      ...aboratory for Microscopic and Spectroscopic Material Characterization, Center for Surface- and Nanoanalytics, Johannes Kepler University Linz, Altenbergerstrasse 69, A-4040 Linz, Austria ^2 voestalpine Stahl GmbH, voesta...
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    8. Simultaneous detection of optical retardation and axis orientation by polarization-sensitive full-field optical coherence microscopy for material testing

      Simultaneous detection of optical retardation and axis orientation by polarization-sensitive full-field optical coherence microscopy for material testing
      We present a polarization-sensitive full-field optical coherence microscopy modality which is capable of simultaneously delivering depth resolved information on the reflectivity, optical retardation and optical axis orientation. In this way local birefringence, inherent stressstrain fields and optical anisotropies can be visualized with high resolution, as exemplified for various technical material applications.
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    9. In-Situ Optical Coherence Tomography (OCT) for the Time-Resolved Investigation of Crystallization Processes in Polymers

      In-Situ Optical Coherence Tomography (OCT) for the Time-Resolved Investigation of Crystallization Processes in Polymers
      Optical coherence tomography (OCT) is a low-coherence interferometric imaging method which was developed in the 1990s prevalently in the area of biomedical diagnostics. (1) It generates depth scans of samples in a contact-free, nondestructive manner. Having become a standard method for ophthalmologic examinations, (2, 3) within the past decade also applications outside the medical field were found, as summarized in a recent review (4) and with a special focus put ...
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    10. Full Field Optical Coherence Microscopy: Imaging and Image Processing for Micro-Material Research Applications

      Full Field Optical Coherence Microscopy: Imaging and Image Processing for Micro-Material Research Applications
      Non-destructive optical imaging and probing techniques have found entrance and success in material sciences favoured by their non-invasive investigation character. X-ray computer tomography (CT) applied in a different size scale (e.g. as micro-CT and nano-CT [ 1 ]) is well established as a non-destructive technique in the field of material inspection. CT imaging delivers highly contrasted images of the internal of the specimens. It includes information about inclusions or cavities, and ...
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    11. Full field optical coherence microscopy for material testing: contrast enhancement and dynamic process monitoring

      Full field optical coherence microscopy for material testing: contrast enhancement and dynamic process monitoring
      We illustrate the abilities of an advanced full-field optical coherence microscope (FF-OCM) setup for characterization of technical materials with internal micro-structures and present this technique also for dynamic process monitoring, as strain-stress tests. Additionally we briefly illustrate the potential of image processing in context of the chosen applications. Furthermore, contrast modification techniques based on Fourier plane filtering are discussed.
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    12. Conference on Optical Methods for Inspection, Characterization and Imaging of Biomaterials, Munich Germany May 13th, 2013

      Conference on Optical Methods for Inspection, Characterization and Imaging of Biomaterials, Munich Germany May 13th, 2013
      Submission for postdeadline papers still open (till end of January). Biocompatible materials (or Biomaterials) are substances that are intended to interact with biological systems. For the safe and reliable function of implants, materials are as important as form. Surfaces may require appropriate coatings or functionalization. Therefore the last two decades have seen strong advancements in biomaterials and related science, with capital investments and research efforts into the development of new ...
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  2. About Johannes Kepler University of Linz

    Johannes Kepler University of Linz

    Johannes Kepler University of Linz is an impulse center for science and the community and prides itself on a very distinguished international reputation. The university is the largest academic institution in the federal state of Upper Austria. The university’s core areas include the Social Sciences, Economics and Business, Law as well as Engineering and Natural Sciences.