1. Gereon Hüttmann

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    1. Mentioned In 56 Articles

    2. Novel endoscope with increased depth of field for imaging human nasal tissue by microscopic optical coherence tomography

      Explore OSA | OSA Publishing Otolaryngology , Probes
      Novel endoscope with increased depth of field for imaging human nasal tissue by microscopic optical coherence tomography
      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

    3. Retinal pulse wave velocity measurement using spectral-domain optical coherence tomography

      Explore Wiley Online Library
      Retinal pulse wave velocity measurement using spectral-domain optical coherence tomography
      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

    4. Label-Free In Vivo Imaging of Corneal Lymphatic Vessels Using Microscopic Optical Coherence Tomography

      Explore IOVS Journal
      Label-Free In Vivo Imaging of Corneal Lymphatic Vessels Using Microscopic Optical Coherence Tomography
      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

    5. An Approach for Needle Based Optical Coherence Elastography Measurements

      Explore Home - Springer
      An Approach for Needle Based Optical Coherence Elastography Measurements
      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

    7. Reduction of frame rate in full-field swept-source optical coherence tomography by numerical motion correction [Invited]

      Explore OSA | OSA Publishing
      Reduction of frame rate in full-field swept-source optical coherence tomography by numerical motion correction [Invited]
      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

    8. In-vivo retinal imaging with off-axis full-field time-domain optical coherence tomography

      Explore OSA | OSA Publishing Ophthalmology
      In-vivo retinal imaging with off-axis full-field time-domain optical coherence tomography
      With a simple setup, mainly composed of a low coherence light source and a camera, full-field optical coherence tomography (FF-OCT) allows volumetric tissue imaging. However, fringe washout constrains its use in retinal imaging. Here, we present a novel motion-insensitive approach to FF-OCT, which introduces path-length differences between the reference and the sample light in neighboring pixels using an off-axis reference beam. The temporal carrier frequency in scanned time-domain OCT is ...
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      Mentions: Thorlabs Gereon Hüttmann Reginald Birngruber

    9. Feature Of The Week 10/25/2015: Imaging Pulse Wave Propagation in Human Retina using Full-Field Swept-Source OCT

      Explore Optical Coherence Tomography News
      Feature Of The Week 10/25/2015: Imaging Pulse Wave Propagation in Human Retina using Full-Field Swept-Source OCT
      We demonstrate a new noninvasive method to assess biomechanical properties of the retinal vascular system. Phase-sensitive full-field swept-source optical coherence tomography (PhS-FF-SS-OCT) is used to investigate retinal vascular dynamics at unprecedented temporal resolution. The motion of retinal tissue that is induced by expansion of the vessels therein is measured with an accuracy of about 10 nm. The pulse shapes of arterial and venous pulsations, their temporal delays, as well as ...
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      Mentions: Thorlabs Gereon Hüttmann University of Lübeck

    10. Imaging pulse wave propagation in human retinal vessels using full-field swept-source optical coherence tomography

      Explore OSA | OSA Publishing Ophthalmology
      Imaging pulse wave propagation in human retinal vessels using full-field swept-source optical coherence tomography
      We demonstrate a new noninvasive method to assess biomechanical properties of the retinal vascular system. Phase-sensitive full-field swept-source optical coherence tomography (PhS-FF-SS-OCT) is used to investigate retinal vascular dynamics at unprecedented temporal resolution. The motion of retinal tissue that is induced by expansion of the vessels therein is measured with an accuracy of about 10 nm. The pulse shapes of arterial and venous pulsations, their temporal delays, as well as ...
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      Mentions: Gereon Hüttmann University of Lübeck Hendrik Spahr

    12. Future Prospects: Assessment of Intraoperative Optical Coherence Tomography in Ab Interno Glaucoma Surgery

      Explore Informa Healthcare Ophthalmology
      Future Prospects: Assessment of Intraoperative Optical Coherence Tomography in Ab Interno Glaucoma Surgery
      Purpose : Ab interno glaucoma surgery , such as trabecular aspiration or ab interno trabeculotomy, has been introduced as an alternative, non-filtering procedure to lower intraocular pressure in glaucoma patients. The purpose of the present study was to assess the feasibility of intraoperative spectral domain optical coherence tomography (iOCT) for improving ab interno glaucoma surgery . Materials and Methods : Intraoperative optical coherence tomography was performed to visualize the anterior chamber angle, the aspiration ...
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      Mentions: University of Cologne Gereon Hüttmann

    13. Microanatomy of the tympanic membrane in chronic myringitis obtained with optical coherence tomography

      Explore Home - Springer
      Microanatomy of the tympanic membrane in chronic myringitis obtained with optical coherence tomography
      A microscope-based optical coherence tomography (OCT) device was used to assess the microanatomy of the tympanic membrane in patients with chronic myringitis. A prospective study was designed for this purpose. OCT measurements of the tympanic membrane were done on 11 patients with myringitis with a microscope-based spectral domain OCT system. The in vivo findings were compared with those findings of a control group consisting of 36 patients with retraction pockets ...
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      Mentions: Universität Rostock Gereon Hüttmann University of Lübeck

    14. Device with an OCT system for examining and treating living tissue by means of heating of the tissue by absorbing electromagnetic radiation

      Explore uspto.gov Patents
      Device with an OCT system for examining and treating living tissue by means of heating of the tissue by absorbing electromagnetic radiation
      A device for examining or treating living tissue by means of local heating of the tissue by absorbing electromagnetic radiation, with at least one radiation source emitting electromagnetic radiation, a control unit for controlling the irradiation parameters of the radiation source, and at least one FD-OCT apparatus with a light source emitting a measurement light for illuminating that tissue region in which the electromagnetic radiation is absorbed by the tissue ...
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      Mentions: Gereon Hüttmann Reginald Birngruber University of Lübeck

    16. Optimising deep anterior lamellar keratoplasty (DALK) using intraoperative online optical coherence tomography (iOCT)

      Explore BJO Online Ophthalmology
      Optimising deep anterior lamellar keratoplasty (DALK) using intraoperative online optical coherence tomography (iOCT)
      Background/aims To describe the use of intraoperative online optical coherence tomography (iOCT) for improving deep anterior lamellar keratoplasty (DALK) surgery. Methods Retrospective case series of 6 eyes of 6 male patients with keratokonus, corneal dystrophy or herpetic stromal scars undergoing DALK were investigated using intraoperative optical coherence tomography and postsurgical image/video analysis. Main outcome measures were: visibility of surgical steps, especially, assessment of placement depth of injection needle ...
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      Mentions: University of Cologne Gereon Hüttmann University of Lübeck
    17. 1-15 of 56 1 2 3 4 »
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  4. About Gereon Hüttmann

    Gereon Hüttmann

    Gereon Hüttmann is with the Institute for Biomedical Optics at the University of Lübeck.

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