1. Articles from christoph hitzenberger

    1-5 of 5
    1. Method and apparatus for processing polarization data of polarization sensitive optical coherence tomography

      Method and apparatus for processing polarization data of polarization sensitive optical coherence tomography

      A method for processing polarization data includes steps of acquiring a plurality of sets of polarization data items, converting the set of polarization data items into a representation including parameters of amplitude and phase, and averaging the converted set of polarization data items.

      Read Full Article
    2. POLARIZATION-SENSITIVE Optical Coherence Tomography System

      POLARIZATION-SENSITIVE Optical Coherence Tomography System

      In a polarization-sensitive optical coherence tomography system, an interferometer includes single mode fibers and a plurality of polarization controllers. At least one of the plurality of polarization controllers is disposed on each of the fibers of the interferometer. The fibers include a fiber for sample light beam, a fiber for reference light beam, and a fiber for detection light beam. An image forming unit determines a pixel value from a data set consists of two orthogonal polarization components simultaneously obtained at substantially identical spatial positions of a test sample, wherein a measurement light beam has static single polarization state.

      Read Full Article
    3. High-speed polarization-sensitive OCT at 1060 nm using a Fourier domain mode-locked swept source

      High-speed polarization-sensitive OCT at 1060 nm using a Fourier domain mode-locked swept source

      Optical coherence tomography (OCT) in the 1060nm range is interesting for in vivo imaging of the human posterior eye segment (retina, choroid, sclera), as it permits a long penetration depth. Complementary to structural images, polarization-sensitive OCT (PS-OCT) images visualize birefringent, polarization-maintaining or depolarizing areas within the sample. This information can be used to distinguish retinal layers and structures with different polarization properties. High imaging speed is crucial for imaging ocular structures in vivo in order to minimize motion artifacts while acquiring sufficiently large datasets. Here, we demonstrate PS-OCT imaging at 350 kHz A-scan rate using a two-channel PS-OCT system in ...

      Read Full Article
    4. Method For Determining Exudates In The Retina

      Method For Determining Exudates In The Retina

      The present invention relates to a method for detecting exudates and/or micro-exudates in the retina of an eye by imaging said retina with a polarisation sensitive optical coherence tomography (OCT) technique comprising the steps of a) illuminating the retina of said eye with light produced by a polarisation sensitive optical coherence tomography light source, b) scanning the retina with said light and collecting the reflection light or backscattered light generated in each scanned point in the retina of said eye using signal light collecting means, c) processing the interf erometric signals obtained in at least one polarisation channel, and ...

      Read Full Article
    5. Imaging of the retinal pigment epithelium in age-related macular degeneration using polarization sensitive optical coherence tomography

      Purpose: Spectral-domain optical coherence tomography (SD-OCT) provided new insights into the understanding of age-related macular degeneration (AMD) but provides limited information on the nature of hyperreflective tissue at the level of the retinal pigment epithelium (RPE). Therefore, a polarization-sensitive SD-OCT (PS-SD-OCT) was used to identify and characterize typical RPE-findings in AMD. Methods: 44 eyes of 44 AMD-patients were included into this prospective case series representing the entire AMD-spectrum from drusen (n=11), geographic atrophy (GA, n=11), neovascular AMD (nAMD, n=11) to fibrotic scars (n=11). Cirrus (Carl-Zeiss-Meditec), Spectralis (Heidelberg) and 3D-OCT-1000 (Topcon) were used for comparative imaging. A ...
      Read Full Article
    1-5 of 5
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Topics in the News

    1. (5 articles) Michael Pircher
    2. (5 articles) Christoph K. Hitzenberger
    3. (3 articles) Medical University of Vienna
    4. (3 articles) Erich Götzinger
    5. (3 articles) Stefan Zotter
    6. (3 articles) National Institutes of Health
    7. (2 articles) University of Vienna
    8. (2 articles) Bernhard Baumann
    9. (2 articles) Ursula Schmidt-Erfurth
    10. (2 articles) Canon Medical Systems
    11. (2 articles) Harvard University
    12. (1 articles) Thomas Klein
    13. (1 articles) Texas A&M University
    14. (1 articles) FDA
    15. (1 articles) University of Southern California
    16. (1 articles) Dresden University of Technology
    17. (1 articles) Francesco Prati
    18. (1 articles) Edmund Koch
    19. (1 articles) Lars Kirsten
    20. (1 articles) Javier A. Jo
  3. Popular Articles

  4. Picture Gallery

    Method For Determining Exudates In The Retina High-speed polarization-sensitive OCT at 1060 nm using a Fourier domain mode-locked swept source POLARIZATION-SENSITIVE Optical Coherence Tomography System Method and apparatus for processing polarization data of polarization sensitive optical coherence tomography Medical treatment of inflammatory punctual stenosis monitored by anterior segment optical coherence tomography Development and Validation of a Deep Learning System for Diagnosing Glaucoma Using Optical Coherence Tomography Methylene blue-filled biodegradable polymer particles as a contrast agent for optical coherence tomography Optical coherence tomography for thyroid pathology: 3D analysis of tissue microstructure Mathematical Analysis of Texture Indicators for the Segmentation of Optical Coherence Tomography Images Comparison of Current Optical Coherence Tomography Angiography Methods in Imaging Retinal Hemangioblastomas New findings useful for clinical practice using swept-source optical coherence tomography angiography in the follow-up of active ocular toxoplasmosis Ultrafast-laser ablation of polymer multicore fibers enhances biomedical sensing