1. Oregon Health & Science University

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    1. Mentioned In 437 Articles

    2. Label-free 3D optical imaging of microcirculation within sentinel lymph node in vivo

      Label-free 3D optical imaging of microcirculation within sentinel lymph node in vivo
      Sentinel lymph node (SLN) is the first lymph node to drain wastes originated from cancerous tissue. There is a need for an in vivo imaging method that can image the intact SLN in order to further our understanding of its normal as well as abnormal functions. We report the use of ultrahigh sensitive optical microangiography (UHS-OMAG) to image functional microvascular and lymphatic vessel networks that innervate the intact lymph node ...
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    3. 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
      Doppler OCT is a functional extension of OCT that provides information on flow in biological tissues. We present a novel approach for total retinal blood flow assessment using ultrahigh speed Doppler OCT. A swept source / Fourier domain OCT system at 1050 nm was used for 3D imaging of the human retina. The high axial scan rate of 200 kHz allowed measuring the high flow velocities in the central retinal vessels ...
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    4. Volumetric In Vivo Imaging of Microvascular Perfusion Within the Intact Cochlea in Mice Using Ultra-High Sensitive Optical Microangiography

      Volumetric In Vivo Imaging of Microvascular Perfusion Within the Intact Cochlea in Mice Using Ultra-High Sensitive Optical Microangiography
      Studying the inner ear microvascular dynamics is extremely important to understand the cochlear function and to further advance the diagnosis, prevention, and treatment of many otologic disorders. However, there is currently no effective imaging tool available that is able to access the blood flow within the intact cochlea. In this paper, we report the use of an ultrahigh sensitive optical micro-angiography (UHS-OMAG) imaging system to image 3-D microvascular perfusion within ...
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    5. Webinar 1/12/11 on Optical Scattering as a Contrast Mechanism: Toward Label-Free Imaging of Cancer by Steven Jacques

      Webinar 1/12/11 on Optical Scattering as a Contrast Mechanism: Toward Label-Free Imaging of Cancer by Steven Jacques
      ... neonatal care. As of 2009, over 20 million newborns have been tested with the device. In 1996, he joined the Oregon Health & Science University in Portland, Oregon, where he now serves as Professor of Dermatology and B...
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    6. Imaging and modeling of blood flow in the developing heart

      Imaging and modeling of blood flow in the developing heart
      Blood flow during early embryonic development modulates the growth and remodeling (volume and shape) of the heart. Several studies in animals have shown that altered hemodynamic conditions during embryonic development resulted in cardiac defects resembling those in the 1% of human newborns with congenital heart disease. To better understand the relationship between blood flow and cardiac development, as well as the mechanisms by which blood flow affects heart growth, we ...
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    7. Optical Coherence Tomography Guided Transepithelial Phototherapeutic Keratectomy

      Optical Coherence Tomography Guided Transepithelial Phototherapeutic Keratectomy
      ...rederick (Rick) W. Fraunfelder, MD Casey Eye Institute, Oregon Health & Science University Responsible Party: Oregon Health & Science University ( David Huang, MD PhD ) ClinicalTrials.gov Identifier: NCT01243931     Hist...
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    8. Pilot Study of Optical Coherence Tomography Measurement of Retinal Blood Flow in Retinal and Optic Nerve Diseases

      Pilot Study of Optical Coherence Tomography Measurement of Retinal Blood Flow in Retinal and Optic Nerve Diseases
      Purpose: To investigate blood flow changes in retinal and optic nerve diseases with Doppler Fourier domain optical coherence tomography (OCT). Methods: Sixty-two participants were divided into five groups: normal, glaucoma, nonarteritic ischemic optic neuropathy (NAION), treated proliferative diabetic retinopathy (PDR), and branch retinal vein occlusion (BRVO). Doppler OCT was used to scan concentric circles of 3.4 and 3.75 mm diameters around the optic nerve head. Flow in retinal ...
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    9. Autocorrelation optical coherence tomography for mapping transverse particle-flow velocity

      Autocorrelation optical coherence tomography for mapping transverse particle-flow velocity
      We present an autocorrelation method to quantitatively map transverse particle-flow velocity with a Fourier-domain optical coherence tomography system. This method is derived from the intensity fluctuation of the backscattered light modulated by flowing particles. When passing through the probe beam, moving particles encode a transit time into the backscattered light. The slope of the normalized autocorrelation function of the backscattered light is proportional to the transverse velocity. The proposed method ...
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    10. Phase-sensitive optical coherence tomography imaging of the tissue motion within the organ of Corti at a subnanometer scale: a preliminary study

      Phase-sensitive optical coherence tomography imaging of the tissue motion within the organ of Corti at a subnanometer scale: a preliminary study
      ...iversity, Department of Biomedical Engineering, CH13B, 3303 Southwest Bond Avenue, Portland, Oregon 97239 and Oregon Health & Science University, Oregon Hearing Research Center, NRC04, 3181 Southwest Sam Jackson Park Roa...
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    11. Measurement of absolute blood flow velocity in outflow tract of HH18 chicken embryo based on 4D reconstruction using spectral domain optical coherence tomography

      Measurement of absolute blood flow velocity in outflow tract of HH18 chicken embryo based on 4D reconstruction using spectral domain optical coherence tomography
      The measurement of blood-plasma absolute velocity distributions with high spatial and temporal resolution in vivo is important for the investigation of embryonic heart at its early stage of development. We introduce a novel method to measure absolute blood flow velocity based on high speed spectral domain optical coherence tomography (OCT) and apply it to measure velocities across the heart outflow tract (OFT) of a chicken embryo (stage HH18). First, we ...
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    12. Advice for Students Interested in Optics and Photonics from Leaders in the Optics and Photonics Community

      Advice for Students Interested in Optics and Photonics from Leaders in the Optics and Photonics Community
      SPIE asked leaders in the optics and photonics community to give some advice to students interested in the field. Astronomers, professors, CEOs, a Nobel Prize winner, and others all give their answer to the question, "What advice would you give to a student or young professional interested in optics and/or photonics?" This is a small collection of their responses
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    13. 376-390 of 437 « 1 2 ... 23 24 25 26 27 28 29 »
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  2. About Oregon Health & Science University

    Oregon Health & Science University

    Oregon Health & Science University (OHSU) is a public university in Oregon with a main campus, including three hospitals, in Portland and a smaller campus in Hillsboro. It was formed in 1974 as the University of Oregon Health Sciences Center, combining state dentistry, medicine, and nursing programs into a single center. It was renamed Oregon Health Sciences University in 1981 and took its current name in 2001, as part of a merger with the Oregon Graduate Institute of Science and Technology (OGI) in Hillsboro. In addition, the university has several partnership programs including a joint PharmD Pharmacy program with Oregon State University.