1. Articles mentioning both Bernhard Baumann and Massachusetts Institute of Technology

    1-15 of 15
    1. Functional imaging of hemodynamic stimulus response in the rat retina with ultrahigh-speed spectral / Fourier domain OCT

      Functional imaging of hemodynamic stimulus response in the rat retina with ultrahigh-speed spectral / Fourier domain OCT
      ...dynamic stimulus response in the rat retina with ultrahigh-speed spectral / Fourier domain OCT WooJhon Choi ; Bernhard Baumann ; Allen C. Clermont ; Edward P. Feener ; David A. Boas ; James G. Fujimoto; Functional imagin...
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    2. In vivo imaging of the rodent eye with swept source/Fourier domain OCT

      In vivo imaging of the rodent eye with swept source/Fourier domain OCT
      Swept source/Fourier domain OCT is demonstrated for in vivo imaging of the rodent eye. Using commercial swept laser technology, we developed a prototype OCT imaging system for small animal ocular imaging operating in the 1050 nm wavelength range at an axial scan rate of 100 kHz with ~6 m axial resolution. The high imaging speed enables volumetric imaging with high axial scan densities, measuring high flow velocities in vessels ...
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    3. Phase-sensitive swept-source optical coherence tomography imaging of the human retina with a vertical cavity surface-emitting laser light source

      Phase-sensitive swept-source optical coherence tomography imaging of the human retina with a vertical cavity surface-emitting laser light source
      ...g is also presented. © 2013 Optical Society of America WooJhon Choi, Benjamin Potsaid, Vijaysekhar Jayaraman, Bernhard Baumann, Ireneusz Grulkowski, Jonathan J. Liu, Chen D. Lu, Alex E. Cable, David Huang, Jay S. Duker, ...
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    4. Quantitative OCT angiography of optic nerve head blood flow

      Quantitative OCT angiography of optic nerve head blood flow
      Optic nerve head (ONH) blood flow may be associated with glaucoma development. A reliable method to quantify ONH blood flow could provide insight into the vascular component of glaucoma pathophysiology. Using ultrahigh-speed optical coherence tomography (OCT), we developed a new 3D angiography algorithm called split-spectrum amplitude-decorrelation angiography (SSADA) for imaging ONH microcirculation. In this study, a method to quantify SSADA results was developed and used to detect ONH perfusion changes ...
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    5. Extracting and compensating dispersion mismatch in ultrahigh-resolution Fourier domain OCT imaging of the retina

      Extracting and compensating dispersion mismatch in ultrahigh-resolution Fourier domain OCT imaging of the retina
      We present a numerical approach to extract the dispersion mismatch in ultrahigh-resolution Fourier domain optical coherence tomography (OCT) imaging of the retina. The method draws upon an analogy with a Shack-Hartmann wavefront sensor. By exploiting mathematical similarities between the expressions for aberration in optical imaging and dispersion mismatch in spectral / Fourier domain OCT, Shack-Hartmann principles can be extended from the two-dimensional paraxial wavevector space (or the x-y plane in the ...
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    6. Motion correction in optical coherence tomography volumes on a per A-scan basis using orthogonal scan patterns

      Motion correction in optical coherence tomography volumes on a per A-scan basis using orthogonal scan patterns
      High speed Optical Coherence Tomography (OCT) has made it possible to rapidly capture densely sampled 3D volume data. One key application is the acquisition of high quality in vivo volumetric data sets of the human retina. Since the volume is acquired in a few seconds, eye movement during the scan process leads to distortion, which limits the accuracy of quantitative measurements using 3D OCT data. In this paper, we present ...
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    7. Swept source / Fourier domain polarization sensitive optical coherence tomography with a passive polarization delay unit

      Swept source / Fourier domain polarization sensitive optical coherence tomography with a passive polarization delay unit
      Polarization sensitive optical coherence tomography (PS-OCT) is a functional imaging method that provides additional contrast using the light polarizing properties of a sample. This manuscript describes PS-OCT based on ultrahigh speed swept source / Fourier domain OCT operating at 1050nm at 100kHz axial scan rates using single mode fiber optics and a multiplexing approach. Unlike previously reported PS-OCT multiplexing schemes, the method uses a passive polarization delay unit and does not ...
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    8. Measurement of pulsatile total blood flow in the human and rat retina with ultrahigh speed spectral/Fourier domain OCT

      Measurement of pulsatile total blood flow in the human and rat retina with ultrahigh speed spectral/Fourier domain OCT
      We present an approach to measure pulsatile total retinal arterial blood flow in humans and rats using ultrahigh speed Doppler OCT. The axial blood velocity is measured in an en face plane by raster scanning and the flow is calculated by integrating over the vessel area, without the need to measure the Doppler angle. By measuring flow at the central retinal artery, the scan area can be very small. Combined ...
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    9. Imaging limbal and scleral vasculature using Swept Source Optical Coherence Tomography

      Imaging limbal and scleral vasculature using Swept Source Optical Coherence Tomography
      We demonstrate application of high-speed swept source optical coherence tomography for vessel visualization in the anterior segment of the human eye. The human corneo-scleral junction and sclera was imaged in vivo. Imaging was performed using a swept source OCT system operating at 1050nm wavelength range and 100kHz A-scan rate. The high imaging speed enables generation of 3D depth-resolved vasculature maps. The vessel visualization method revealed the rich vascular system in ...
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    10. Retinal blood flow measurement with ultrahigh-speed swept-source / Fourier domain optical coherence tomography

      Retinal blood flow measurement with ultrahigh-speed swept-source / Fourier domain optical coherence tomography
      ...ow for single vessels as well as total retinal blood flow can be measured using a simple and robust protocol. Bernhard Baumann, Benjamin Potsaid, Jonathan J. Liu, Martin F. Kraus, David Huang, Joachim Hornegger, Jay S. D...
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    11. Ultrahigh speed 1050nm swept source / Fourier domain OCT retinal and anterior segment imaging at 100,000 to 400,000 axial scans per second

      Ultrahigh speed 1050nm swept source / Fourier domain OCT retinal and anterior segment imaging at 100,000 to 400,000 axial scans per second
      ...logy : Optical coherence tomography ToC Category: Medical Optics and Biotechnology Citation Benjamin Potsaid, Bernhard Baumann, David Huang, Scott Barry, Alex E. Cable, Joel S. Schuman, Jay S. Duker, and James G. Fujimot...
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    12. 1-15 of 15
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      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

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    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Organizations in the News

    1. (8 articles) Center for Ophthalmic Optics and Lasers
    2. (8 articles) Tufts University
    3. (7 articles) Oregon Health & Science University
    4. (5 articles) University of Erlangen
    5. (2 articles) University of Southern California
    6. (1 articles) Shanghai Jiao Tong University
    7. (1 articles) Boston University
    8. (1 articles) University of Pittsburgh
    9. (1 articles) University of São Paulo
  3. People in the News

    1. (15 articles) James G. Fujimoto
    2. (10 articles) Benjamin M. Potsaid
    3. (9 articles) Jonathan J. Liu
    4. (8 articles) David Huang
    5. (8 articles) Jay S. Duker
    6. (6 articles) WooJhon Choi
    7. (5 articles) Martin F. Kraus
    8. (4 articles) Chen D. Lu
    9. (3 articles) Alex E. Cable
    10. (3 articles) Ireneusz Grulkowski
    11. (2 articles) Ou Tan
    12. (2 articles) Yali Jia
  4. OCT Companies in the News

    1. (8 articles) Thorlabs
    2. (1 articles) Optovue
    3. (1 articles) Praevium Research
    4. (1 articles) Heidelberg Engineering
    5. (1 articles) Carl Zeiss Meditec