1. Osaka University

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    1. Mentioned In 110 Articles

    2. Spectral-Domain Optical Coherence Tomographic Findings in Punctate Inner Choroidopathy

      Spectral-Domain Optical Coherence Tomographic Findings in Punctate Inner Choroidopathy
      Purpose: To investigate the pathology of punctate inner choroidopathy (PIC) using spectral-domain optical coherence tomography. Methods: We retrospectively reviewed spectral-domain optical coherence tomography findings of 14 cases with active PIC. We obtained specific appearance of the active PIC lesion that were characterized by yellowish/white round spots in fundus examination with fluorescein leakage. Fluorescein angiogram and confocal indocyanine green angiogram were also reviewed. Results: Three cases (21%) of 14 were ...
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    3. Combined two-photon microscopy and optical coherence tomography using individually optimized sources

      Combined two-photon microscopy and optical coherence tomography using individually optimized sources
      The combination of two-photon microscopy (TPM) and optical coherence tomography (OCT) is useful in conducting in-vivo tissue studies, because they provide complementary information regarding tissues. In the present study, we developed a new combined system using separate light sources and scanners for individually optimal imaging conditions. TPM used a Ti-Sapphire laser and provided molecular and cellular information in microscopic tissue regions. Meanwhile, OCT used a wavelength-swept source centered at 1300 ...
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    4. Dynamic analysis for mental sweating of a group of eccrin sweat glands on a human fingertip by optical coherence tomography

      Dynamic analysis for mental sweating of a group of eccrin sweat glands on a human fingertip by optical coherence tomography
      OCT is highly potential for in vivo observation of human sweating dynamics which affects activity of the sympathetic nerve. In this paper, we demonstrate dynamic OCT analysis of mental sweating of a group of eccrin sweat glands. The sweating dynamics is tracked simultaneously for nineteen sweat glands by time-sequential piled-up en-face OCT images with the frame spacing of 3.3 sec. Strong non-uniformity is observed in mental sweating where the ...
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      Mentions: Osaka University
    5. Ultrahigh-Resolution Optical Coherence Tomography in 1.7 µm Region with Fiber Laser Supercontinuum in Low-Water-Absorption Samples

      Ultrahigh-Resolution Optical Coherence Tomography in 1.7 µm Region with Fiber Laser Supercontinuum in Low-Water-Absorption Samples
      ... Computer Science, Nagoya University, Nagoya 464-8603, Japan 1Division of Advanced Science and Biotechnology, Osaka University, Suita, Osaka 565-0871, Japan Ultrahigh-resolution, high-penetration-depth optical coherence ...
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    6. Detection of photoreceptor disruption by adaptive optics fundus imaging and Fourier-domain optical coherence tomography in eyes with occult macular dystrophy

      Detection of photoreceptor disruption by adaptive optics fundus imaging and Fourier-domain optical coherence tomography in eyes with occult macular dystrophy
      ...unji Kusaka1, Tatsuo Yamaguchi2, Toshifumi Mihashi2, Takashi Fujikado1 1Department of Applied Visual Science, Osaka University Graduate School of Medicine, Osaka, Japan; 2Topcon Research Institute, Itabashi, Japan Purpos...
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    7. Ex-vivo ultra-high-resolution optical coherence tomography imaging of fine lung structure by use of a high-power Gaussian-like supercontinuum at 0.8-μm wavelength

      Ex-vivo ultra-high-resolution optical coherence tomography imaging of fine lung structure by use of a high-power Gaussian-like supercontinuum at 0.8-μm wavelength
      Optical coherence tomography (OCT) is an emerging technology for non-invasive cross-sectional imaging of biological tissue and material with um resolution. Recently, non-invasive high resolution cross-sectional imaging is desired for investigation of diseases in lung in the field of pulmonary medicine. So far, a few works have been reported about OCT imaging of lung. Since the lung consists of alveoli separated by thin wall, ultrahigh resolution (UHR) OCT is supposed to ...
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    8. Dynamic analysis of a small artery of a human finger by optical coherence tomography

      Dynamic analysis of a small artery of a human finger by optical coherence tomography
      OCT is highly potential for development of a new field of dynamic skin physiology, as recently reported by the authors. In this paper, we demonstrate dynamic analysis of a small artery of a human finger by the SS-OCT. Among the vascular system, only the small artery has two physiological functions both for the elastic artery (like main and middle arteries) and for muscle-controlled one (like arterioles). It, therefore, is important ...
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      Mentions: Osaka University
    9. Ultrahigh resolution optical coherence tomography imaging of lung structure using Gaussian shaped super continuum sources

      Ultrahigh resolution optical coherence tomography imaging of lung structure using Gaussian shaped super continuum sources
      Optical coherence tomography (OCT) is an emerging technology for non-invasive cross-sectional imaging of biological tissue and material with um resolution. In the field of pulmonary medicine, non-invasive high resolution cross-sectional imaging is desired for investigation of diseases in lung. So far, a few works have been reported about OCT imaging of lung. Since the lung consists of alveoli separated by thin wall, ultrahigh resolution (UHR) OCT is supposed to be ...
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    10. Dimension measuring apparatus

      Dimension measuring apparatus
      A dimension measuring apparatus includes a light beam splitting element for splitting light emitted from a white light source into measuring light flux and reference light flux, a reference light scanning optics for varying optical path length of the reference light flux, a detector for detecting interference signal produced by the light fluxes, and a controller for determining the surface height of the object from the optical path length of ...
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    11. Peripapillary Retinal Nerve Fiber Layer Thickness Determined by Spectral-Domain Optical Coherence Tomography in Ophthalmologically Normal Eyes

      Peripapillary Retinal Nerve Fiber Layer Thickness Determined by Spectral-Domain Optical Coherence Tomography in Ophthalmologically Normal Eyes
      ...halmology, Gunma University School of Medicine, Maebashi (Drs Ootani and Kishi), Department of Ophthalmology, Osaka University Medical School, Osaka (Drs Matsushita and Maeda), and Department of Ophthalmology and Visual ...
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    12. Quasi-supercontinuum generation using 1.06μmultrashort-pulse laser system for ultrahigh-resolution optical-coherence tomography

      Quasi-supercontinuum generation using 1.06μmultrashort-pulse laser system for ultrahigh-resolution optical-coherence tomography
      We demonstrate quasi-supercontinuum (quasi-SC) generation around the 1.3 μm wavelength region using ultrahigh-speed, wavelength-tunable, femtosecond soliton pulses based on an ultrashort-pulse laser system operating at a wavelength of 1.0μm. The wavelength tuning range was from 1.0 to 1.9μm, and the scanning speed was up to 1.3MHz. A Gaussian-like quasi-SC with a bandwidth of 220nm was generated at 1220nm. The generated quasi-SC was used in an ...
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    13. Spectral-Domain Optical Coherence Tomographic Findings in Myopic Foveoschisis

      Purpose: The purpose of this study was to investigate the sensitivity of various scan modes of spectral-domain optical coherence tomography (SD-OCT) for detecting pathologies that may accompany myopic foveoschisis, which is important for making surgical decisions and planning surgical strategies for myopic foveoschisis. Methods: Twenty-one eyes of 18 patients were diagnosed with myopic foveoschisis by SD-OCT. Patients were examined with SD-OCT using both a five-line raster scan and a three-dimensional ...
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    14. 76-90 of 110 « 1 2 3 4 5 6 7 8 »
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  2. About Osaka University

    Osaka University

    Osaka University is a major national university located in Osaka, Japan. It is the sixth oldest university in Japan as the Osaka Prefectural Medical College, and formerly one of the Imperial Universities of Japan. Numerous prominent scientists worked at the Osaka University such as the Nobel Laureate in Physics Hideki Yukawa.  Also see Osaka University Medical School.  We aim to develop the research capability of our researchers and offer them comprehensive medical knowledge so that they can engage in research activities independently. We strive to foster extensively knowledgeable health care specialists with a flexible and methodical mind. We aim to train scientists and doctors who can meet present health care needs in the specialized field of nursing, as well as embrace the development of science. In addition, we endeavor to nurture scientists who are able to provide 21st Century intellectual leadership in the fields of Nursing and Medical Technology and Science.