Articles that mention Medical University of Vienna -Optical Coherence Tomography News

Medical University of Vienna

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1. Mentioned In 445 Articles
2. Impact of systemic vascular risk factors on the choriocapillaris using optical coherence tomography angiography in patients with systemic hypertension
  
  Explore Nature Publishing Group Apr 12 2019 Ophthalmology
  
  We investigated the characteristics of the choriocapillaris flow voids using optical coherence tomography angiography (OCTA) in 85 patients (164 eyes) with hypertension (meanSD age, 5611 years; 45% women; 20% poorly controlled BP; 16% diabetes) who are without ocular diseases and determined possible correlations with systemic vascular risk factors. Data on 24-hour ambulatory blood pressure (BP), serum creatinine, and urine microalbumin/creatinine ratio (MCR) were collected. Estimated glomerular filtration rate (eGFR ...
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  Mentions: Medical University of Vienna Singapore Eye Research Institute Tien Yin Wong
3. En face optical coherence tomography: a technology review [Invited]
  
  Explore OSA | OSA Publishing Apr 9 2019 Microscopy
  
  A review on the technological development of en face optical coherence tomography (OCT) and optical coherence microscopy (OCM) is provided. The terminology originally referred to time domain OCT, where the preferential scanning was performed in the en face plane. Potentially the fastest realization of en face image recording is full-field OCT, where the full en face plane is illuminated and recorded simultaneously. The term has nowadays been adopted for high-speed ...
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  Mentions: Rainer A. Leitgeb Medical University of Vienna
4. Comparison of Spectralis and Cirrus spectral domain optical coherence tomography for the objective morphometric assessment of the neuroretinal rim width
  
  Explore Home - Springer Apr 2 2019 Ophthalmology
  
  Purpose The assessment of cup-disc ratio as a surrogate parameter for the neuroretinal rim width (NRW) of the optic nerve is well established, but prone to human error and imprecision. Objective assessment of the NRW is provided by spectral domain optical coherence tomography (SD-OCT). This study is the first to systematically compare NRW measurements acquired with the Carl Zeiss Meditech Cirrus HD-OCT 5000 and the Heidelberg Engineering Spectralis SD-OCT. Methods ...
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  Mentions: Heidelberg Engineering Medical University of Vienna Carl Zeiss Meditec
5. Feature Of The Week 03/31/2019: Depth resolved label-free multimodal optical imaging platform to study morpho-molecular composition of tissue
  
  Explore Optical Coherence Tomography News Mar 31 2019
  
  ...ar and morphological information. For more information see recent Article . Courtesy Angelika Unterhuber from Medical University of Vienna . We have developed a multimodal laser scanning microscope (LSM) platform combini...
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  Mentions: Wolfgang Drexler Medical University of Vienna Angelika Unterhuber
6. Semi‐automated quantification of geographic atrophy with blue‐light autofluorescence and spectral‐domain optical coherence tomography: a comparison between the region finder and the advanced retinal pigment epithelium tool in the clinical setting
  
  Explore Wiley Online Library Mar 26 2019 Ophthalmology
  
  Purpose To compare inter‐ and intraobserver reliability and intermodality agreement on quantification of geographic atrophy, using two routinely available quantification tools, based on blue‐light fundus autofluorescence (BAF) and spectral‐domain optical coherence tomography (SD‐OCT). Methods Quantifications of atrophic lesions within the central 5 mm of 30 eyes from 30 patients (mean age: 76.1 years) were independently performed by two clinicians on BAF images using the region finder ...
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  Mentions: Heidelberg Engineering Medical University of Vienna Carl Zeiss Meditec
7. Depth resolved label-free multimodal optical imaging platform to study morpho-molecular composition of tissue
  
  Explore RSC Publishing Home Mar 23 2019
  
  Multimodal imaging platforms offer a vast array of tissue information in a single image acquisition by combining complementary imaging techniques. By merging different systems, better tissue characterization can be achieved than is possible by the constituent imaging modalities alone. The combination of optical coherence tomography (OCT) with non-linear optical imaging (NLOI) techniques such as two-photon excited fluorescence (TPEF), second harmonic generation (SHG) and coherent anti-Stokes Raman scattering (CARS) provides access ...
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  Mentions: Wolfgang Drexler Medical University of Vienna Angelika Unterhuber
8. Investigating spontaneous retinal venous pulsation using Doppler optical coherence tomography
  
  Explore Nature Publishing Group Mar 14 2019 Ophthalmology
  
  We demonstrate the advantages of optical coherence tomography (OCT) imaging for investigation of spontaneous retinal venous pulsation (SRVP). The pulsatile changes in venous vessel caliber are analyzed qualitatively and quantitatively using conventional intensity-based OCT as well as the functional extension Doppler OCT (DOCT). Single-channel and double-channel line scanning protocols of our multi-channel OCT prototype are employed to investigate venous pulsatile caliber oscillations as well as venous flow pulsatility in the ...
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  Mentions: Christoph K. Hitzenberger Michael Pircher Medical University of Vienna
9. Synthetic subaperture-based angle-independent Doppler flow measurements using single-beam line field optical coherence tomography in vivo
  
  Explore OSA | OSA Publishing Feb 13 2019
  
  We demonstrate a synthetic subaperture-based angle-independent Doppler flow calculation, using a line field spectral domain optical coherence tomography system. The high speed of the system features a high phase stability over the volume, which is necessary to apply synthetic subapertures in the aperture plane. Thus, the flow component for each subaperture can be reconstructed in postprocessing. Capillary phantom and in vivo retinal imaging experiments were performed to validate and demonstrate ...
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  Mentions: Rainer A. Leitgeb Medical University of Vienna Lara M. Wurster
10. Multimodal Retinal Imaging of the Angiofibrotic Switch in Neovascular AMD
  
  Explore Home - ClinicalTrials.gov Feb 12 2019 Ophthalmology , Clinical Trials
  
  The content of this research project is to identify the angiofibrotic switch, the transition from angiogenesis to fibrosis, in neovascular age-related macular degeneration (nAMD) longitudinally. AMD is the most important cause of vision loss of the elderly in industrialized countries. Despite optimal treatment about 50% of eyes with nAMD develop fibrosis within 2 years, causing irreversible damage to the retina and functional loss. Objective measurement of fibrosis, however, is challenging ...
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  Mentions: Medical University of Vienna
11. Reproducibility of Dual Beam Doppler Fourier-domain Optical Coherence Tomography in Healthy Subjects
  
  Explore Home - ClinicalTrials.gov Jan 29 2019 Ophthalmology , Clinical Trials
  
  Dual beam Doppler Fourier-domain Optical coherence tomography (DOCT) is a noninvasive technique to quantify total retinal blood flow. To enable further development of this technique it is essential to assess short- and long-term reproducibility of DOCT blood flow measurements. In the present study, total retinal blood flow will be measured with DOCT at multiple time points to gain information of short- and long-term reproducibility. In addition, provocation with flickering light ...
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  Mentions: Medical University of Vienna
12. Imaging in myopia: potential biomarkers, current challenges and future developments
  
  Explore BJO Online Jan 12 2019 Ophthalmology
  
  Myopia is rapidly increasing in Asia and around the world, while it is recognised that complications from high myopia may cause significant visual impairment. Thus, imaging the myopic eye is important for the diagnosis of sight-threatening complications, monitoring of disease progression and evaluation of treatments. For example, recent advances in high-resolution imaging using optical coherence tomography may delineate early myopic macula pathology, optical coherence tomography angiography may aid early choroidal ...
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  Mentions: Columbia University Medical University of Vienna Singapore Eye Research Institute
13. Summary of 6th International Meeting on OCT Angiography & Advances in OCT in Rome December 2018: A Tremendous Success
  
  Explore Optical Coherence Tomography News Jan 4 2019
  
  On December 14 and 15 2018, over 1400 ophthalmologists participated in Rome at tha most important meeting on OCT and OCT Angiography. the 6th international meeting on OCT Angiography, advances in OCT . The organizer, Dr Lumbroso has, since he started to organize these meetings, a well-defined objective: informing ophthalmologist in any country on the new clinical possibilities of Ocular imaging. The policy is to invite the best speakers in the ...
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  Mentions: Philip J. Rosenfeld Massachusetts Institute of Technology James G. Fujimoto
14. Quantitative analysis of choriocapillaris in non-human primates using swept-source optical coherence tomography angiography (SS-OCTA)
  
  Explore OSA | OSA Publishing Dec 26 2018 Ophthalmology
  
  The choriocapillaris is a unique vascular plexus located posterior to the retinal pigment epithelium. In recent years, there is an increasing interest in the examination of the interrelationship between the choriocapillaris and eye diseases. We used several techniques to study choroidal perfusion, including laser Doppler flowmetry, laser speckle flowgraphy, and optical coherence tomography angiography (OCTA), but with the latter no standardized algorithm for quantitative analysis has been provided. We analyzed ...
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  Mentions: Medical University of Vienna Carl Zeiss Meditec Nanyang Technological University
15. Optical coherence tomography angiography and photoacoustic imaging in dermatology
  
  Explore RSC Publishing Home Dec 21 2018 Dermatology
  
  Optical coherence tomography angiography (OCTA) is a relatively novel functional extension of the widely accepted ophthalmic imaging tool named optical coherence tomography (OCT). Since OCTAs debut in ophthalmology, researchers have also been trying to expand its translational application into dermatology. The ability of OCTA in resolving microvasculature has shown promising results in imaging skin diseases. Meanwhile, photoacoustic imaging (PAI), which uses laser pulse induced ultrasound waves as the signal, has ...
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  Mentions: Wolfgang Drexler Medical University of Vienna Mengyang Liu
16. Numerically focused full-field swept-source optical coherence microscopy with structured illumination
  
  Explore OSA | OSA Publishing Dec 19 2018
  
  This paper presents an experimental investigation of the possibility of transverse resolution improvement combined with effective numerically focused 3D imaging in full-field swept-source optical coherence microscopy (OCM) by using structured illumination and specific numerical post-processing. The possibility of transverse resolution improvement of the OCM coherence signal combined with the possibility of numerical focusing is demonstrated by imaging a resolution test target in the optical focus and defocus regions. The possibility ...
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  Mentions: Rainer A. Leitgeb Medical University of Vienna
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