1. Sun Yat-Sen University

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    1. Mentioned In 105 Articles

    2. Comparison of anterior ocular biometry between optical low-coherence reflectometry and anterior segment optical coherence tomography in an adult Chinese population

      Comparison of anterior ocular biometry between optical low-coherence reflectometry and anterior segment optical coherence tomography in an adult Chinese population
      ...hou 510060, China. email address From the State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China Received 30 October 2011; received in revised form 23 November 2011...
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    3. Quantitative measurement of optical parameters of cell lines 5-8F and 6-10B using polarization sensitive optical coherence tomography

      Quantitative measurement of optical parameters of cell lines 5-8F and 6-10B using polarization sensitive optical coherence tomography
      ...uth China Normal University, Guangzhou 510006, China * ^b Department of Radiation Oncology, Cancer Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China * ^c Laboratory of Optical Imaging and S...
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    4. Quantitative discrimination of NPC cell lines using optical coherence tomography

      Quantitative discrimination of NPC cell lines using optical coherence tomography
      We tried to explore the intrinsic differences in the optical properties of the four representative NPC cell lines on the models of radiobiology and metastasis by OCT. The scattering coefficients and anisotropies were extracted by fitting the average a-scan attenuation curves based on the multiple scatter effect. The values of scattering coefficients and anisotropy factors were 5.21 ± 0.11, 5.30 ± 0.09, 5.92 ± 0.21, 6.97 ...
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    5. Determination of optical properties of oxidative bleaching human dental tissue samples using optical coherence tomography

      Determination of optical properties of oxidative bleaching human dental tissue samples using optical coherence tomography
      Oxidative bleaching changes of human teeth induced changes in the optical properties of dental tissue. We introduced 1310 nm wavelengths of optical coherence tomography (OCT) attenuation coefficient method which is a relatively novel and rarely reported methodology to measure the correlation coefficient during the teeth oxidative bleaching procedure. And the quantitative parameters of enamel optical thickness and disruption of the entrance signal (DES) were extracted from the OCT images. The ...
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    6. The potential optical coherence tomography in tooth bleaching quantitative assessment

      The potential optical coherence tomography in tooth bleaching quantitative assessment
      Abstract  In this paper, we report the outcomes from a pilot study on using OCT functional imaging method to evaluate and quantify color alteration in the human teeth in vitro. The image formations of the dental tissues without and with treatment 35% hydrogen peroxide were obtained by an OCT system at a 1310 nm central wavelength. One parameter for the quantification of optical properties from OCT measurements is introduced in ...
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    7. Quantification of color alteration in human teeth with optical coherence tomography

      Quantification of color alteration in human teeth with optical coherence tomography
      Abstract  It is necessary to develop a laboratory model to evaluate tooth discoloration, because there are several limitations to assessment methods at present stage. Therefore, in this letter, we report the results from a pilot study on using optical coherence tomography imaging method to quantify color alteration in the human teeth treatment with 35% hydrogen peroxide bleaching in vitro. Quantitative comparison of chromogens reduction in dental tissue showed that near ...
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    8. Image Quality Affects Macular and Retinal Nerve Fiber Layer Thickness Measurements on Fourier-Domain Optical Coherence Tomography

      Image Quality Affects Macular and Retinal Nerve Fiber Layer Thickness Measurements on Fourier-Domain Optical Coherence Tomography
      ...ess correspondences to Xing Liu, MD, PhD, State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 Xianlienan Road, Guangzhou 510060, China. E-mail: drliuxing@163.com doi: 10.3928/15...
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    9. Association of Narrow Angles With Anterior Chamber Area and Volume Measured With Anterior-Segment Optical Coherence Tomography]

      Association of Narrow Angles With Anterior Chamber Area and Volume Measured With Anterior-Segment Optical Coherence Tomography]
      ...re (Drs Chan, Wong, and Aung), Singapore; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Dr He); Centro da Visao, Universidade Federal do Parana, Curitiba, B...
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    10. In Vivo Comparison of the Optical Clearing Efficacy of Optical Clearing Agents in Human Skin by Quantifying Permeability Using Optical Coherence Tomography

      In Vivo Comparison of the Optical Clearing Efficacy of Optical Clearing Agents in Human Skin by Quantifying Permeability Using Optical Coherence Tomography
      The objective of the present work is to quantify and compare the optical clearing efficacy of glucose, propylene glycol, glycerol solutions through the human skin tissue in vivo by calculating permeability coefficient of three solutions. Currently, the permeability coefficient of agent in tissues was extracted from OCT amplitude data mainly through the OCT signal slope (OCTSS) and the OCT amplitude (OCTA) methods. In this study, we report the OCT attenuation ...
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    11. Single versus sequential testing with scanning peripheral anterior chamber depth analyser, IOLMaster and anterior segment optical coherence tomography for the detection of narrow angles

      Single versus sequential testing with scanning peripheral anterior chamber depth analyser, IOLMaster and anterior segment optical coherence tomography for the detection of narrow angles
      ...ngapore National Eye Centre and Singapore Eye Research Institute, Singapore 3. ^3Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China 4. ^4Department of Ophthalmology, University of Yamanashi, Yamanashi,...
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    12. Quantifying glucose permeability and enhanced light penetration in ex vivo human normal and cancerous esophagus tissues with optical coherence tomography

      Quantifying glucose permeability and enhanced light penetration in ex vivo human normal and cancerous esophagus tissues with optical coherence tomography
      We report our pilot results on quantification of glucose (G) diffusion permeability in human normal esophagus and ESCC tissues in vitro by using OCT technique. The permeability coefficient of 40% aqueous solution of G was found to be (1.740.04)105 cm/s in normal esophagus and (2.450.06)105 cm/s in ESCC tissues. The results from this study indicate that ESCC tissues had a higher permeability ...
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    13. Decreased retinal nerve fiber layer thickness in patients with obstructive sleep apnea/hypopnea syndrome

      Decreased retinal nerve fiber layer thickness in patients with obstructive sleep apnea/hypopnea syndrome
      Background To compare parameters for retinal nerve fiber layer (RNFL) thickness, optic nerve head (ONH) measurements, and macular thickness in patients with different severities of obstructive sleep apnea/hypopnea syndrome (OSAHS) versus normal controls. Methods Patients presenting with snoring and daytime sleepiness who underwent overnight polysomnography to determine OSAHS severity were recruited, and subsequently referred for ophthalmologic evaluation. Optical coherence tomography was used to evaluate the retinal nerve fiber layer ...
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    14. Diagnostic Performance of Anterior Chamber Angle Measurements for Detecting Eyes With Narrow Angles: An Anterior Segment OCT Study: An Anterior Segment OCT Study

      Diagnostic Performance of Anterior Chamber Angle Measurements for Detecting Eyes With Narrow Angles: An Anterior Segment OCT Study: An Anterior Segment OCT Study
      Objective To assess the diagnostic performance of angle measurements from anterior segment optical coherence tomography (AS-OCT) images for identifying eyes with narrow angles. Methods We conducted a community-based cross-sectional study of individuals 50 years or older who had phakic eyes and who underwent AS-OCT imaging in the dark by a single operator and gonioscopy by an ophthalmologist masked to AS-OCT findings. An eye was considered to have narrow angles if ...
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    15. In vivo quantification of propylene glycol, glucose and glycerol diffusion in human skin with optical coherence tomography

      In vivo quantification of propylene glycol, glucose and glycerol diffusion in human skin with optical coherence tomography
      ...hua University, Shenzhen, 518055, Guangdong, China (4) Department of Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Province, China Received: 3 April 2010 Accepted: 2 Augus...
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    16. 76-90 of 105 « 1 2 3 4 5 6 7 »
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  2. About Sun Yat-Sen University

    Sun Yat-Sen University

    Sun Yat-Sen University is located in Guangdong Province, the frontal of reform and opening. At present the University has 4 campuses with a total area of 6.17 square kilometers sitting respectively on both sides of the Pearl River or facing the South China Sea.  Zhongshan Ophthalmic Center is at the Sun Yat-Sen University of Medical Sciences, Guangzhou, China