1. Articles from natasha a. befrui

    1-4 of 4
    1. Concentration effect on the diffusion of glucose in ocular tissues

      In this study, optical coherence tomography (OCT) was utilized in the functional imaging of glucose diffusion through scleral tissues. Permeability coefficients for different concentrations of glucose were quantified nondestructively. Obtained results indicate an inverse proportionality between the permeability coefficient and the concentration of the analyte in epithelial tissues: in-depth diffusion of solutions with lower glucose concentration was faster than those with a higher concentration. The permeability coefficient decreased from (1.67±0.17)×10−5 cm/s of 10% glucose solution to (5.08±0.23)×10−6 cm/s of 25% glucose solution. The dependence of the permeability on ...
      Read Full Article
    2. The effect of solution concentration on diffusion in scleral tissues

      Mohamad G. Ghosn, Esteban F. Carbajal, Natasha A. Befrui et al. The calculation of permeability coefficient of analytes could potentially be used in a variety of basic science and clinical fields, as well as advanced diagnostic imaging. Before this can occur, a more thorough understanding of the diffusion rate of analytes in biological tissues is needed. For thi ... [Proc. SPIE 6791, 679107 (2008)] published Mon Jun 9, 2008.
      Read Full Article
    3. Differential permeability rate and percent clearing of glucose in different regions in rabbit sclera

      Mohamad G. Ghosn, Esteban F. Carbajal, Natasha A. Befrui et al. Imaging of biological tissues with optical coherence tomography (OCT) poses a great interest for its capability to noninvasively outline subsurface microstructures within tissues. However, a major limitation for many optical imaging techniques is inadequate depth penetration of light in turbid media ... [J. Biomed. Opt. 13, 021110 (2008)] published Mon Apr 21, 2008.
      Read Full Article
    4. Permeability of hyperosmotic agent in normal and atherosclerotic vascular tissues

      Noninvasive cardiovascular imaging could lead to the early detection and timely treatment of complex atherosclerotic lesions responsible for major cardiovascular events. Recent investigations have suggested that optical coherence tomography (OCT) is an ideal diagnostic tool due to the high resolution this technology achieves in discriminating the different features of atherosclerotic lesions based on structural imaging. We explore the capability of OCT for functional imaging of normal and atherosclerotic aortic tissues based on time- and depth-resolved quantification of the permeability of biomolecules through these tissues. The permeability coefficient of 20% aqueous solution of glucose was found to be (6.80±0 ...
      Read Full Article
    1-4 of 4
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources, Velocimetry
    4. Miscellaneous:

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

    1. (4 articles) University of Houston
    2. (4 articles) Kirill V. Larin
    3. (4 articles) Mohamad G. Ghosn
    4. (3 articles) Saratov State University
    5. (3 articles) Valery V. Tuchin
    6. (1 articles) Cardiovascular Research Foundation
    7. (1 articles) Columbia University
    8. (1 articles) Armando Tellez
    9. (1 articles) Juan F. Granada
    10. (1 articles) Academic Medical Center at the University of Amsterdam
    11. (1 articles) Erasmus University
    12. (1 articles) National Institutes of Health
    13. (1 articles) Ton G. van Leeuwen
    14. (1 articles) Hector M. Garcia-Garcia
    15. (1 articles) Daniël M. de Bruin
  3. Popular Articles

  4. Picture Gallery

    Side branch healing patterns of the Tryton dedicated bifurcation stent: a 1-year optical coherence tomography follow-up study Intravascular Photoacoustic Tomography of Coronary Atherosclerosis Intracoronary Optical Coherence Tomography: Insights from Clinical Research—What Do We Need to Learn? Optical coherence tomography applied to tests of skin care products in humans – a case study Evaluation of Pachymetric Measurements with Scheimpflug Photography-Based System and Optical Coherence Tomography Pachymetry at Different Stages of Keratoconus Anterior Segment Optical Coherence Tomography Imaging of Conjunctival Filtering Blebs after Glaucoma Surgery OPTICAL COHERENCE TOMOGRAPHY DIFFERENCE MAPS AND AVERAGE MACULAR VOLUME FOR GEOGRAPHIC ATROPHY Optical Coherence Tomography in Coronary Artery  Disease: Toward Sub cellular Imaging ABSORB Biodegradable Stents Versus Second-Generation Metal Stents : A Comparison Study of 100 Complex Lesions Treated Under OCT Guidance Postdoctoral Research Associate Opening at University of Liverpool Reproducibility of Spectral-Domain Optical Coherence Tomography Retinal Thickness Measurements and Conversion to Equivalent Time-Domain Metrics in Diabetic Macular Edema Highly calcific in-stent restenosis as a substrate for sirolimus-eluting stent very late stent thrombosis