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    1. Mentioned In 511 Articles

    2. AGE challenge: Angle Closure Glaucoma Evaluation in Anterior Segment Optical Coherence Tomography

      Explore ScienceDirect Ophthalmology
      AGE challenge: Angle Closure Glaucoma Evaluation in Anterior Segment Optical Coherence Tomography
      Angle closure glaucoma (ACG) is a more aggressive disease than open-angle glaucoma, where the abnormal anatomical structures of the anterior chamber angle (ACA) may cause an elevated intraocular pressure and gradually lead to glaucomatous optic neuropathy and eventually to visual impairment and blindness. Anterior Segment Optical Coherence Tomography (AS-OCT) imaging provides a fast and contactless way to discriminate angle closure from open angle. Although many medical image analysis algorithms have ...
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      Mentions: Medical University of Vienna Sun Yat-Sen University The Chinese University of Hong Kong

    4. Ex-vivo Alzheimer’s disease brain tissue investigation: a multiscale approach using 1060-nm swept source optical coherence tomography for a direct correlation to histology

      Explore SPIE Digital Library Neurology
      Ex-vivo Alzheimer’s disease brain tissue investigation: a multiscale approach using 1060-nm swept source optical coherence tomography for a direct correlation to histology
      Significance: Amyloid-beta (A-) plaques are pathological protein deposits formed in the brain of Alzheimers disease (AD) patients upon disease progression. Further research is needed to elucidate the complex underlying mechanisms involved in their formation using label-free, tissue preserving, and volumetric techniques. Aim: The aim is to achieve a one-to-one correlation of optical coherence tomography (OCT) data to histological micrographs of brain tissue using 1060-nm swept source OCT. Approach: A- plaques ...
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      Mentions: Rainer A. Leitgeb Wolfgang Drexler Medical University of Vienna

    5. Comparison of SDOCT Scan Types for Grading Disorganization of Retinal Inner Layers and Other Morphologic Features of Diabetic Macular Edema

      Explore TVST Journal Ophthalmology
      Comparison of SDOCT Scan Types for Grading Disorganization of Retinal Inner Layers and Other Morphologic Features of Diabetic Macular Edema
      Purpose : To assess grading reproducibility of disorganization of the retinal inner layers (DRIL) and other morphologic features of diabetic macular edema (DME) across spectral domain optical coherence tomography (SDOCT) instruments and scan types. Methods : A cross-sectional study enrolled participants with current or recent center-involved DME. In group A (27 eyes), we obtained two Cirrus scans (512 128 macular cube [Cube] and high-definition five-line raster [HD 5-Line]) and two Spectralis scans ...
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      Mentions: Optovue Case Western Reserve University Medical University of Vienna

    6. Attenuation coefficient as a quantitative parameter for analyzing cataracts with optical coherence tomography

      Explore EPJ Web of Conferences Ophthalmology
      Attenuation coefficient as a quantitative parameter for analyzing cataracts with optical coherence tomography
      Crystalline lenses of mice were imaged in vivo with a custom-made swept-source optical coherence tomography system. The use of the attenuation coefficient as a quantitative parameter for investigating the lens opacities magnitude is proposed, demonstrating a significant difference between the values retrieved from cataractous and normal mouse lenses.
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      Mentions: Medical University of Vienna Bernhard Baumann Antonia Lichtenegger

    7. Comparison of macular neovascularization lesion size by the use of Spectral‐Domain Optical Coherence Tomography Angiography and Swept‐Source Optical Coherence Tomography Angiography versus Indocyanine Green Angiography

      Explore Wiley Online Library Ophthalmology
      Comparison of macular neovascularization lesion size by the use of Spectral‐Domain Optical Coherence Tomography Angiography and Swept‐Source Optical Coherence Tomography Angiography versus Indocyanine Green Angiography
      Purpose To compare the lesion sizes of macular neovascularization (MNV) imaged with spectral‐domain (SD) and swept‐source (SS) optical coherence tomography angiography (OCTA) as well as indocyanine green angiography (ICGA). Methods In this prospective, observational case series, patients showing a secured diagnosis of MNV on ICGA or Fluorescein Angiography, were imaged by SD‐OCTA and SS‐OCTA on the same day. Lesion size was measured on 3 3‐mm ...
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      Mentions: Topcon Medical Systems Medical University of Vienna University of Graz

    8. Anterior segment optical coherence tomography angiography for iris vasculature in pigmented eyes

      Explore BJO Online Ophthalmology
      Anterior segment optical coherence tomography angiography for iris vasculature in pigmented eyes
      Purpose To compare anterior segment optical coherence tomography angiography (AS-OCTA) systems in delineating normal iris vessels and iris neovascularisation (NVI) in eyes with pigmented irides. Methods Prospective study from January 2019 to June 2019 of 10 consecutive patients with normal pigmented iris, had AS-OCTA scans with a described illumination technique, before using the same protocol in five eyes with NVI (clinical stages 13). All scans were sequentially performed using a ...
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      Mentions: Medical University of Vienna Singapore Eye Research Institute Nanyang Technological University

    9. Novel Approaches for Imaging-Based Diagnosis of Ocular Surface Disease

      Explore MDPI Open Access Journals Platform Ophthalmology
      Novel Approaches for Imaging-Based Diagnosis of Ocular Surface Disease
      Imaging has become indispensable in the diagnosis and management of diseases in the posterior part of the eye. In recent years, imaging techniques for the anterior segment are also gaining importance and are nowadays routinely used in clinical practice. Ocular surface disease is often synonymous with dry eye disease, but also refers to other conditions of the ocular surface, such as Meibomian gland dysfunction or keratitis and conjunctivitis with different ...
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      Mentions: Medical University of Vienna Singapore Eye Research Institute Nanyang Technological University

    10. Retinal vessel architecture in retinopathy of prematurity and healthy controls using swept‐source optical coherence tomography angiography

      Explore Wiley Online Library Ophthalmology
      Retinal vessel architecture in retinopathy of prematurity and healthy controls using swept‐source optical coherence tomography angiography
      Purpose To determine microvascular changes in children with a history of retinopathy of prematurity (ROP) and in a control group of full‐term children. Methods In a cross‐sectional study, 30 eyes of 15 children aged 68 years with a history of ROP were evaluated with swept‐source optical coherence tomography angiography (SS‐OCTA). Twenty‐eight eyes of 22 age‐matched full‐term children served as a healthy control group ...
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      Mentions: Medical University of Vienna Ursula Schmidt-Erfurth Stefan G. Sacu

    11. Validation of inter-eye difference thresholds in optical coherence tomography for identification of optic neuritis in multiple sclerosis

      Explore Multiple Sclerosis and Related Disorders Neurology , Ophthalmology
      Validation of inter-eye difference thresholds in optical coherence tomography for identification of optic neuritis in multiple sclerosis
      Objective To examine and validate thresholds for inter-eye differences in peripapillary retinal nerve fibre (pRNFL) and ganglion cell + inner plexiform layer (GCIPL) thicknesses for identifying unilateral optic neuritis in MS. Methods In this two-centre, cross-sectional study, optical coherence tomography was performed in 340 patients with clinically isolated syndrome (CIS) and MS. Cut-off values of inter-eye difference for identification of eyes with a history of unilateral ON were evaluated by receiver-operating ...
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      Mentions: Medical University of Vienna

    12. Visualizing human photoreceptor and retinal pigment epithelium cell mosaics in a single volume scan over an extended field of view with adaptive optics optical coherence tomography

      Explore OSA | OSA Publishing Ophthalmology
      Visualizing human photoreceptor and retinal pigment epithelium cell mosaics in a single volume scan over an extended field of view with adaptive optics optical coherence tomography
      Using adaptive optics optical coherence tomography, human photoreceptors and retinal pigment epithelium (RPE) cells are typically visualized on a small field of view of 1 to 2. In addition, volume averaging is required for visualizing the RPE cell mosaic. To increase the imaging area, we introduce a lens based spectral domain AO-OCT system that shows low aberrations within an extended imaging area of 44 while maintaining a high (theoretical) transverse ...
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      Mentions: Christoph K. Hitzenberger Michael Pircher Medical University of Vienna

    13. Stable complex conjugate artifact removal in OCT using circularly polarized light as reference

      Explore OSA | OSA Publishing
      Stable complex conjugate artifact removal in OCT using circularly polarized light as reference
      In Fourier domain optical coherence tomography (FDOCT), the depth profile is mirrored about the zero delay between the sample and reference optical paths, limiting the imaging depth to half of the entire ranging space and undermining the optimal sensitivity window. We present a new method, to the best of our knowledge, to remove the complex conjugate artifact by using circularly polarized light as reference. Quadrature detection of the complex fringe ...
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      Mentions: Medical University of Vienna Singapore Eye Research Institute Nanyang Technological University

    14. Are choriocapillaris flow void features robust to diurnal variations? A swept-source optical coherence tomography angiography (OCTA) study

      Explore Nature Publishing Group Ophthalmology
      Are choriocapillaris flow void features robust to diurnal variations? A swept-source optical coherence tomography angiography (OCTA) study
      We evaluated the impact of diurnal variation on choroidal and retinal microvasculature and structural measurements using a swept-source optical coherence tomography angiography machine (SS-OCTA; PLEX Elite 9,000, Carl Zeiss Meditec, Inc., Dublin, USA). Fourteen participants who were without ocular diseases underwent SS-OCTA imaging using 33-mm 2 macular scan pattern on two separate days at five time points. Choriocapillaris flow voids were generated to determine its density (percentage), size (m ...
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      Mentions: Medical University of Vienna Singapore Eye Research Institute Carl Zeiss Meditec

    15. Atlas of Human Retinal Pigment Epithelium Organelles Significant for Clinical Imaging

      Explore IOVS Journal Ophthalmology
      Atlas of Human Retinal Pigment Epithelium Organelles Significant for Clinical Imaging
      Purpose : To quantify organelles impacting imaging in the cell body and intact apical processes of human retinal pigment epithelium (RPE), including melanosomes, lipofuscinmelanolipofuscin (LM), mitochondria, and nuclei. Methods : A normal perifovea of a 21-year-old white male was preserved after rapid organ recovery. An aligned image stack was generated using serial block-face scanning electron microscopy and was annotated by expert readers (TrakEM, ImageJ). Acquired measures included cell body and nuclear volume ...
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      Mentions: University of Alabama Michael Pircher Medical University of Vienna

    16. Improved Diagnostic Imaging of Brain Tumors by Multimodal Microscopy and Deep Learning

      Explore MDPI Open Access Journals Platform Neurology
      Improved Diagnostic Imaging of Brain Tumors by Multimodal Microscopy and Deep Learning
      Fluorescence-guided surgery is a state-of-the-art approach for intraoperative imaging during neurosurgical removal of tumor tissue. While the visualization of high-grade gliomas is reliable, lower grade glioma often lack visible fluorescence signals. Here, we present a hybrid prototype combining visible light optical coherence microscopy (OCM) and high-resolution fluorescence imaging for assessment of brain tumor samples acquired by 5-aminolevulinic acid (5-ALA) fluorescence-guided surgery. OCM provides high-resolution information of the inherent tissue scattering ...
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      Mentions: Medical University of Vienna Bernhard Baumann Antonia Lichtenegger
    17. 1-15 of 511 1 2 3 4 ... 32 33 34 »
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  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. Intravitreal avastin for macular edmema secondary to retinal vein occlusion - a prospective study.
      145 articles also mentioned Ursula Schmidt-Erfurth
    2. Efficient optical coherence tomography (OCT) system and method for rapid imaging in three dimensions
      143 articles also mentioned Christoph K. Hitzenberger
    3. Simultaneous SLO/OCT imaging of the human retina with axial eye motion correction
      119 articles also mentioned Michael Pircher
    4. Complex ambiguity-free Fourier domain optical coherence tomography through transverse scanning
      105 articles also mentioned Rainer A. Leitgeb
    5. Submicrometer axial resolution optical coherence tomography.
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