1. Medical University of Vienna

    0 Comments Leave a Comment

    1-15 of 372 1 2 3 4 ... 23 24 25 »

    1. Mentioned In 372 Articles

    2. Spectroscopic imaging with spectral domain visible light optical coherence microscopy in Alzheimer’s disease brain samples

      Explore OSA | OSA Publishing Neurology
      Spectroscopic imaging with spectral domain visible light optical coherence microscopy in Alzheimer’s disease brain samples
      A visible light spectral domain optical coherence microscopy system was developed. A high axial resolution of 0.88 m in tissue was achieved using a broad visible light spectrum (425 685 nm). Healthy human brain tissue was imaged to quantify the difference between white (WM) and grey matter (GM) in intensity and attenuation. The high axial resolution enables the investigation of amyloid-beta plaques of various sizes in human brain tissue ...
      Read Full Article
      Mentions: Christoph K. Hitzenberger Medical University of Vienna Bernhard Baumann

    3. New OCT technique provides better 3-D imaging of the cellular structure of the eye

      Explore Medical Xpress Ophthalmology
      New OCT technique provides better 3-D imaging of the cellular structure of the eye
      Optical Coherence Tomography (OCT) is a high-resolution live imaging technique that can be used for early detection of retinal diseases, such as age-related macular degeneration , diabetes-related conditions, glaucoma or vascular occlusions, for example. However, in order to obtain cellular resolution of the retina and hence even better results, it has so far been necessary to use expensive adaptive lenses to correct the image aberrations that occur. However, using a new ...
      Read Full Article
      Mentions: Medical University of Vienna Carl Zeiss Meditec

    4. Noniterative digital aberration correction for cellular resolution retinal optical coherence tomography in vivo

      Explore OSA | OSA Publishing Ophthalmology
      Noniterative digital aberration correction for cellular resolution retinal optical coherence tomography in vivo
      High-resolution imaging of the human retina has always been a challenge due to imperfect optical properties of the human cornea and lens, which limit the achievable resolution. We present a noniterative digital aberration correction (DAC) to achieve aberration-free cellular-level resolution in optical coherence tomography (OCT) images of the human retina in vivo . The system used is a line-field spectral-domain OCT system with a high tomogram rate, reaching 2.5 kHz ...
      Read Full Article
      Mentions: Rainer A. Leitgeb Michael Pircher Medical University of Vienna

    5. Mapping diurnal changes in choroidal, Haller’s and Sattler’s layer thickness using 3-dimensional 1060-nm optical coherence tomography

      Explore Home - Springer Ophthalmology
      Mapping diurnal changes in choroidal, Haller’s and Sattler’s layer thickness using 3-dimensional 1060-nm optical coherence tomography
      Purpose To test the significance of diurnal changes in choroidal, Hallers and Sattlers layer thickness in healthy subjects using spatial analysis of three-dimensional (3D) 1060-nm optical coherence tomography (OCT) scans. Methods Automatically generated choroidal, Hallers and Sattlers layer thickness maps were statistically analyzed for 19 healthy subjects at two time points (8 a.m. and 6 p.m.) that represent the currently proposed ChT peak and nadir. All subjects were ...
      Read Full Article
      Mentions: Wolfgang Drexler Medical University of Vienna Susanne Binder

    6. 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 ...
      Read Full Article
      Mentions: Johannes F. de Boer Rainer A. Leitgeb Maciej Wojtkowski

    7. Introduction to the feature issue on the 25 year anniversary of optical coherence tomography

      Explore OSA | OSA Publishing
      Introduction to the feature issue on the 25 year anniversary of optical coherence tomography
      This feature issue commemorates the approximately 25 year history of Optical Coherence Tomography (OCT), one of the most successful biophotonic technologies. While OCT has technological origins traceable to ultrafast laser development and fiber optic system test instrumentation of the 1980s, innovations in low coherence interferometry for optical ranging and imaging for biomedical applications in the U.S., Europe and Japan by the early 1990s led to coinage of the now ...
      Read Full Article
      Mentions: Brett E. Bouma Johannes F. de Boer Joseph A. Izatt

    8. Conical scan pattern for enhanced visualization of the human cornea using polarization-sensitive OCT

      Explore OSA | OSA Publishing Ophthalmology
      Conical scan pattern for enhanced visualization of the human cornea using polarization-sensitive OCT
      Conventional imaging of the human cornea with optical coherence tomography (OCT) relies on telecentric scanning optics with sampling beams that are parallel to the optical axis of the eye. Because of the shape of the cornea, the beams have in some areas considerable inclination to the corneal surface which is accompanied by low signal intensities in these areas and thus an inhomogeneous appearance of corneal structures. In addition, alterations in ...
      Read Full Article
      Mentions: Christoph K. Hitzenberger Michael Pircher Medical University of Vienna

    9. Predicting Macular Edema Recurrence from Spatio-Temporal Signatures in Optical Coherence Tomography Image

      Explore IEEE Xplore Ophthalmology
      Predicting Macular Edema Recurrence from Spatio-Temporal Signatures in Optical Coherence Tomography Image
      Abstract: Prediction of treatment responses from available data is key to optimizing personalized treatment. Retinal diseases are treated over long periods and patients response patterns differ substantially, ranging from a complete response to a recurrence of the disease and need for re-treatment at different intervals. Linking observable variables in high-dimensional observations to outcome is challenging. In this paper, we present and evaluate two different data-driven machine learning approaches operating in ...
      Read Full Article
      Mentions: Medical University of Vienna Ursula Schmidt-Erfurth Georg Langs

    10. Polarization Sensitive Optical Coherence Tomography: A Review of Technology and Applications

      Explore MDPI Open Access Journals Platform
      Polarization Sensitive Optical Coherence Tomography: A Review of Technology and Applications
      Polarization sensitive optical coherence tomography (PS-OCT) is an imaging technique based on light scattering. PS-OCT performs rapid two- and three-dimensional imaging of transparent and translucent samples with micrometer scale resolution. PS-OCT provides image contrast based on the polarization state of backscattered light and has been applied in many biomedical fields as well as in non-medical fields. Thereby, the polarimetric approach enabled imaging with enhanced contrast compared to standard OCT and ...
      Read Full Article
      Mentions: Medical University of Vienna Bernhard Baumann

    11. Supervised learning and dimension reduction techniques for quantification of retinal fluid in optical coherence tomography images

      Explore Nature Publishing Group Ophthalmology
      Supervised learning and dimension reduction techniques for quantification of retinal fluid in optical coherence tomography images
      Purpose The purpose of the present study is to develop fast automated quantification of retinal fluid in optical coherence tomography (OCT) image sets. Methods We developed an image analysis pipeline tailored towards OCT images that consists of five steps for binary retinal fluid segmentation. The method is based on feature extraction, pre-segmention, dimension reduction procedures, and supervised learning tools. Results Fluid identification using our pipeline was tested on two separate ...
      Read Full Article
      Mentions: Medical University of Vienna Ursula Schmidt-Erfurth Sebastian M. Waldstein

    12. COMPARISON OF GANGLION CELL INNER PLEXIFORM LAYER THICKNESS BY CIRRUS AND SPECTRALIS OPTICAL COHERENCE TOMOGRAPHY IN DIABETIC MACULAR EDEMA

      Explore LWW Online Ophthalmology
      COMPARISON OF GANGLION CELL INNER PLEXIFORM LAYER THICKNESS BY CIRRUS AND SPECTRALIS OPTICAL COHERENCE TOMOGRAPHY IN DIABETIC MACULAR EDEMA
      Purpose: Reduced thickness of the ganglion cell inner plexiform layer indicates diabetic neurodegeneration and can be assessed by spectral domain optical coherence tomography. The authors investigated the comparability of ganglion cell inner plexiform layer measurements from two spectral domain optical coherence tomography devices in patients with diabetic macular edema (DME). Methods: Analysis of optical coherence tomography data sets of eyes with and fellow eyes without DME. Macular cube scans of ...
      Read Full Article
      Mentions: Heidelberg Engineering Medical University of Vienna Carl Zeiss Meditec

    13. Monitoring retinoschisis and non-acute retinal detachment by optical coherence tomography: morphologic aspects and clinical impact

      Explore Wiley Online Library Ophthalmology
      Monitoring retinoschisis and non-acute retinal detachment by optical coherence tomography: morphologic aspects and clinical impact
      Purpose To differentiate retinoschisis (RS) from non-acute retinal detachment (naRD) in clinical routine using optical coherence tomography (OCT), describe unique morphological OCT characteristics and monitor disease progression. Methods This prospective, observational study included 64 eyes of 44 patients with either RS or naRD. Patients were examined clinically and using Heidelberg Spectralis OCT , Topcon DRI OCT and Cirrus HRA-OCT over 2 years with follow-up at 1, 3, 6, 12 and 24 ...
      Read Full Article
      Mentions: Heidelberg Engineering Topcon Medical Systems Medical University of Vienna

    15. Polarization sensitive optical coherence tomography – a review [Invited]

      Explore OSA | OSA Publishing
      Polarization sensitive optical coherence tomography – a review [Invited]
      Optical coherence tomography (OCT) is now a well-established modality for high-resolution cross-sectional and three-dimensional imaging of transparent and translucent samples and tissues. Conventional, intensity based OCT, however, does not provide a tissue-specific contrast, causing an ambiguity with image interpretation in several cases. Polarization sensitive (PS) OCT draws advantage from the fact that several materials and tissues can change the lights polarization state, adding an additional contrast channel and providing quantitative ...
      Read Full Article
      Mentions: Johannes F. de Boer Christoph K. Hitzenberger Yoshiaki Yasuno

    16. Ultrahigh-resolution OCT imaging of the human cornea

      Explore OSA | OSA Publishing Ophthalmology
      Ultrahigh-resolution OCT imaging of the human cornea
      We present imaging of corneal pathologies using optical coherence tomography (OCT) with high resolution. To this end, an ultrahigh-resolution spectral domain OCT (UHR-OCT) system based on a broad bandwidth Ti:sapphire laser is employed. With a central wavelength of 800 nm, the imaging device allows to acquire OCT data at the central, paracentral and peripheral cornea as well as the limbal region with 1.2 m x 20 m (axial ...
      Read Full Article
      Mentions: Medical University of Vienna Singapore Eye Research Institute
    17. 1-15 of 372 1 2 3 4 ... 23 24 25 »
  1. Search:

  2. 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

  4. About Medical University of Vienna

    Medical University of Vienna

    Medical University of Vienna.  In its structuring and alignment the Medical University of Vienna relies on the "triple track" strategy. Research, education and patient care represent the three cornerstones of the university's system. Center for Biomedical Engineering and Physics, Medical University of Vienna, Austria.  The Biomedical Engineering Group at the Department of Biomedical Engineering of the Medical School, University of Vienna, is situated in the University Hospital of Vienna, which is the biggest hospital of Austria, and one of the biggest in Europe. The Biomedical Engineering Group was concentrated here to promote medical research with modern technical means.

  5. Related Topics

    1. Efficient optical coherence tomography (OCT) system and method for rapid imaging in three dimensions
      116 articles also mentioned Christoph K. Hitzenberger
    2. Intravitreal avastin for macular edmema secondary to retinal vein occlusion - a prospective study.
      115 articles also mentioned Ursula Schmidt-Erfurth
    3. Simultaneous SLO/OCT imaging of the human retina with axial eye motion correction
      98 articles also mentioned Michael Pircher
    4. Complex ambiguity-free Fourier domain optical coherence tomography through transverse scanning
      84 articles also mentioned Rainer A. Leitgeb
    5. Submicrometer axial resolution optical coherence tomography.
      75 articles also mentioned Wolfgang Drexler