Articles that mention University of Lübeck -Optical Coherence Tomography News

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1. Mentioned In 91 Articles
2. Impact of correct anatomical slab segmentation on foveal avascular zone measurements by optical coherence tomography angiography in healthy adults
  
  Explore ScienceDirect Mar 24 2018 Ophthalmology
  
  urpose To evaluate the impact of correct anatomical slab segmentation on foveal avascular zone (FAZ) dimensions in the superficial capillary plexus (SCP) and deep capillary plexus (DCP) using optical coherence tomography angiography (OCTA). Methods Participants with healthy retinas were recruited, and 5 5 mm OCTA images were acquired using the Canon HS-100 Angio eXpert module. FAZ size was measured in automatically (AS, manufacturer-based) and manually (MS, anatomical-based) segmented OCTA slabs ...
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  Mentions: University of Lübeck
3. Novel endoscope with increased depth of field for imaging human nasal tissue by microscopic optical coherence tomography
  
  Explore OSA | OSA Publishing Jan 21 2018 Otolaryngology , Probes
  
  Intravital microscopy (IVM) offers the opportunity to visualize static and dynamic changes of tissue on a cellular level. It is a valuable tool in research and may considerably improve clinical diagnosis. In contrast to confocal and non-linear microscopy, optical coherence tomography (OCT) with microscopic resolution (mOCT) provides intrinsically cross-sectional imaging. Changing focus position is not needed, which simplifies especially endoscopic imaging. For in-vivo imaging, here we are presenting endo-microscopic OCT ...
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  Mentions: Gereon Hüttmann University of Lübeck
4. High-resolution retinal swept source optical coherence tomography with an ultra-wideband Fourier-domain mode-locked laser at MHz A-scan rates
  
  Explore OSA | OSA Publishing Dec 9 2017 Ophthalmology , Tunable Sources
  
  We present a new 1060 nm Fourier domain mode locked laser (FDML laser) with a record 143 nm sweep bandwidth at 2∙ 417 kHz = 834 kHz and 120 nm at 1.67 MHz, respectively. We show that not only the bandwidth alone, but also the shape of the spectrum is critical for the resulting axial resolution, because of the specific wavelength-dependent absorption of the vitreous. The theoretical limit of our ...
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  Mentions: Robert A. Huber University of Lübeck Tom Pfeiffer
5. Retinal pulse wave velocity measurement using spectral-domain optical coherence tomography
  
  Explore Wiley Online Library Dec 9 2017
  
  In their latest publication on retinal pulse wave velocity measurement using optical co-herence tomography (OCT), Qian Li et al. propose a method to determine the pulse wave velocity in retinal arteries and veins [1]. This should enable a non-invasive determination of biomechanical properties of the vessel network, particularly the elasticity of the vessel walls [2].
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  Mentions: Gereon Hüttmann University of Lübeck Qian Li
6. Label-Free In Vivo Imaging of Corneal Lymphatic Vessels Using Microscopic Optical Coherence Tomography
  
  Explore IOVS Journal Nov 19 2017
  
  Purpose : Corneal neovascularization, in particular lymphangiogenesis, is a limiting factor in corneal transplant survival. Novel treatment approaches focus on (selective) inhibition and regression of lymphatic vessels. Imaging clinically invisible corneal lymphatic vessels is a prerequisite for these strategies. Using a murine model, this study investigates whether corneal lymphatic vessels can be imaged using microscopic optical coherence tomography (mOCT). Methods : Corneal neovascularization was induced by intrastromal placement of 11.0 nylon ...
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  Mentions: University of Cologne Gereon Hüttmann University of Lübeck
7. Feature Of The Week 09/10/2017: Thermo-elastic Optical Coherence Tomography
  
  Explore Optical Coherence Tomography News Sep 9 2017
  
  The conventional OCT image contrast is derived from elastic scattering, and shows the internal structure of the sample. The determination of the tissue type in OCT images usually depends on the interpretation by the image reader. More accurate tissue type contrast may be achieved by new OCT-based imaging modalities, with sensitivity to other physical parameters than scattering alone. Phase-sensitive OCT can detect tissue motion on nanometer-to- micrometer length scales using ...
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  Mentions: Robert A. Huber Delft University of Technology Chinese Academy of Sciences
8. An Approach for Needle Based Optical Coherence Elastography Measurements
  
  Explore Home - Springer Sep 9 2017
  
  While navigation and interventional guidance are typically based on image data, the images do not necessarily reflect mechanical tissue properties. Optical coherence elastography (OCE) presents a modality with high sensitivity and very high spatial and temporal resolution. However, OCE has a limited field of view of only 25 mm depth. We present a side-facing needle probe to image externally induced shear waves from within soft tissue. A first method of ...
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  Mentions: Gereon Hüttmann University of Lübeck
9. Thermo-elastic optical coherence tomography
  
  Explore OSA | OSA Publishing Sep 2 2017
  
  The absorption of nanosecond laser pulses induces rapid thermo-elastic deformation in tissue. A sub-micrometer scale displacement occurs within a few microseconds after the pulse arrival. In this Letter, we investigate the laser-induced thermo-elastic deformation using a 1.5 MHz phase-sensitive optical coherence tomography (OCT) system. A displacement image can be reconstructed, which enables a new modality of phase-sensitive OCT, called thermo-elastic OCT. An analysis of the results shows that the ...
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  Mentions: Robert A. Huber Delft University of Technology Chinese Academy of Sciences
10. 'PhotonControl' uses Optical Coherence Tomography, Raman spectroscopy to test quality of bioprinted tissue | 3D Printer News & 3D Printing News
  
  Explore 3ders.org Aug 7 2017 Funding
  
  ...ther over the next two years by Groll and Dr. Gereon Hüttmann from the Institute for Biomedical Optics at the University of Lübeck. Around 240,000 euros ($283,000) has been provided for the project by Germany's Federal M...
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  Mentions: Gereon Hüttmann University of Lübeck
11. U.S. Engineers James G. Fujimoto and Eric A. Swanson, and German Physicist Robert Huber Win European Inventor Award 2017
  
  Explore YouTube Jun 15 2017
  
  Exceptional inventors from Austria, Belgium, France, Germany, Italy, Morocco, the Netherlands, Spain, and the US receive European Inventor Award 2017 at ceremony in Venice ... U.S. Engineers James G. Fujimoto and Eric A. Swanson, and German Physicist Robert Huber Win in the "Non-EPO Countries" category. For more information see http://www.prweb.com/releases/2017/06/prweb14416991.htm.
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  Mentions: Massachusetts Institute of Technology James G. Fujimoto Robert A. Huber
12. INTRAPAPILLARY PROLIFERATION IN OPTIC DISK PITS: Clinical Findings and Time-Related Changes
  
  Explore LWW Online Apr 21 2017 Ophthalmology
  
  Purpose: To investigate the structural changes of intrapapillary proliferations associated with optic disk pits (ODPs) and optic disk pit maculopathy (ODP-M) using enhanced depth-spectral domain-optical coherence tomography (SD-EDI-OCT) and megahertz optical coherence tomography (MHz-OCT). Methods: Sixteen eyes of patients with ODPs were studied. Papillary and peripapillary areas were repeatedly examined with SD-EDI-OCT over time. To evaluate swept-source OCT, some of the patients additionally received MHz-OCT-imaging. Results: MHz-OCT or SD-EDI images ...
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  Mentions: Robert A. Huber Wolfgang Wieser University of Lübeck
13. Feature tracking for automated volume of interest stabilization on 4D-OCT images
  
  Explore Conference Proceedings Mar 16 2017
  
  A common representation of volumetric medical image data is the triplanar view (TV), in which the surgeon manually selects slices showing the anatomical structure of interest. In addition to common medical imaging such as MRI or computed tomography, recent advances in the field of optical coherence tomography (OCT) have enabled live processing and volumetric rendering of four-dimensional images of the human body. Due to the region of interest undergoing motion ...
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  Mentions: Robert A. Huber University of Lübeck University of Hannover
14. Analysis of FDML lasers with meter range coherence
  
  Explore Conference Proceedings Mar 1 2017 Tunable Sources
  
  FDML lasers provide sweep rates in the MHz range at wide optical bandwidths, making them ideal sources for high speed OCT. Recently, at lower speed, ultralong-range swept-source OCT has been demonstrated using a tunable vertical cavity surface emitting laser (VCSEL) and also using a Vernier-tunable laser. These sources provide relatively high sweep rates and meter range coherence lengths. In order to achieve similar coherence, we developed an extremely well dispersion ...
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  Mentions: Robert A. Huber Wolfgang Wieser University of Lübeck
15. Reduction of frame rate in full-field swept-source optical coherence tomography by numerical motion correction [Invited]
  
  Explore OSA | OSA Publishing Feb 13 2017
  
  Full-field swept-source optical coherence tomography (FF-SS-OCT) was recently shown to allow new and exciting applications for imaging the human eye that were previously not possible using current scanning OCT systems. However, especially when using cameras that do not acquire data with hundreds of kHz frame rate, uncorrected phase errors due to axial motion of the eye lead to a drastic loss in image quality of the reconstructed volumes. Here we ...
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  Mentions: Thorlabs Gereon Hüttmann University of Lübeck
16. High-speed OCT light sources and systems [Invited]
  
  Explore OSA | OSA Publishing Jan 16 2017
  
  Imaging speed is one of the most important parameters that define the performance of optical coherence tomography (OCT) systems. During the last two decades, OCT speed has increased by over three orders of magnitude. New developments in wavelength-swept lasers have repeatedly been crucial for this development. In this review, we discuss the historical evolution and current state of the art of high-speed OCT systems, with focus on wavelength swept light ...
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  Mentions: Robert A. Huber University of Lübeck Thomas Klein
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