1. Medical University of Vienna

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    1. Mentioned In 515 Articles

    2. Digital Wavefront Sensing

      Digital Wavefront Sensing
      H-OCT will be tested in this study for its suitability for the qualitative investigation of aberrometry. We aim to achieve a digital equivalent for wavefront calculation of the widespread analog procedure commonly used with conventional wavefront-aberrometers. The results will be compared with those from a conventional analog wavefront calculation method. In the course of this pilot study, 20 eyes of phakic and 10 eyes of pseudophakic subjects with suspected higher ...
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    3. Detection rate of diabetic macular microaneurysms comparing dye-based angiography and optical coherence tomography angiography

      Detection rate of diabetic macular microaneurysms comparing dye-based angiography and optical coherence tomography angiography
      Diabetic maculopathy (DM) is a microvascular dysfunction clinically characterized by microaneurysms (MA) leading to edema and central visual deprivation. This prospective explorative study investigated 27 eyes of 17 patients with DM by fluorescein/indocyanine green angiography (FA/ICGA; SPECTRALIS HRA-OCT, Heidelberg Engineering) and by swept source-optical coherence tomography angiography (SS-OCTA; DRI-OCT Triton Plus, Topcon) to identify clinically relevant MAs. The SS-OCTA cubes were split into the superficial capillary plexus (SCP ...
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    4. The impact of structural optical coherence tomography changes on visual function in retinal vein occlusion

      The impact of structural optical coherence tomography changes on visual function in retinal vein occlusion
      Purpose We aimed to determine the correlation between optical coherence tomography (OCT)‐ and demographic features and baseline best corrected visual acuity (BCVA) in treatment‐nave patients with retinal vein occlusion (RVO). Methods This was a cross‐sectional posthoc analysis of OCT images that included RVO patients from two prospective, open‐label, multicentre studies. The morphological grading was done manually, in the standardized setting of a reading centre. Main outcome measure ...
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    5. Postdoc Opening at The Department of Health Technology at the Technical University of Denmark (DTU)

      Postdoc Opening at The Department of Health Technology at the Technical University of Denmark (DTU)
      ...a gathered from colon tissue samples, in close collaboration with the group of Dr. Angelika Unterhuber at the Medical University of Vienna, Austria. You will also co-supervise a PhD student who is perfecting the tissue...
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    6. AGE challenge: Angle Closure Glaucoma Evaluation in Anterior Segment Optical Coherence Tomography

      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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    7. 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

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

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

      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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    10. 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

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

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

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

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

      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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    15. 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

      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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  2. 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.