1. Articles from Maria M. Karabut

    1-3 of 3
    1. Multimodal optical coherence tomography for in vivo imaging of brain tissue structure and microvascular network at glioblastoma

      Multimodal optical coherence tomography for in vivo imaging of brain tissue structure and microvascular network at glioblastoma

      In the case of infiltrative brain tumors the surgeon faces difficulties in determining their boundaries to achieve total resection. The aim of the investigation was to evaluate the performance of multimodal OCT (MM OCT) for differential diagnostics of normal brain tissue and glioma using an experimental model of glioblastoma. The spectral domain OCT device that was used for the study provides simultaneously two modes: cross-polarization and microangiographic OCT. The comparative analysis of the both OCT modalities images from tumorous and normal brain tissue areas concurrently with histologic correlation shows certain difference between when accordingly to morphological and microvascular tissue features.

      Read Full Article
    2. Vessel-contrast enhancement in label-free optical coherence angiography based on phase and amplitude speckle variability

      Vessel-contrast enhancement in label-free optical coherence angiography based on phase and amplitude speckle variability

      Recently proposed in vivo label-free optical coherence angiography techniques based on phase and amplitude speckle variability often require additional signal pre- and post processing operations to enhance vessel-contrast. We observe here 1) contrast enhancement by optimizing the signal normalization/weighing before processing; 2) algorithm based on Kasai estimator for phase compensation between processed A-scans to reduce masking role of motion artifacts; and 3) image projection through the imaging depth for en face plotting. We demonstrate the efficiency of proposed additional algorithms as for the microcirculation imaging of hamsters cheek in vivo as for the preliminary microcirculation imaging of patients after ...

      Read Full Article
    3. Feature Of The Week 3/13/11: Russian Scientists Investigate Cross Polarization OCT for Early Bladder Cancer Detection

      Feature Of The Week 3/13/11: Russian Scientists Investigate Cross Polarization OCT for Early Bladder Cancer Detection
      Feature Of The Week 3/13/11: This week OCT News has another exciting “Feature Of The Week” presentation of exciting scientific results on the use of co- and cross-polarization OCT information applied to early bladder cancer detection.  The work is from the prestigious Institute of Applied and Fundamental Medicine at the Nizhny Novgorod State Medical Academy and the Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia.  Please note the authors have some excellent animation techniques so go slowly when viewing the slides so the animation can complete.   Capabilities of Cross Polarization Optical Coherence Tomography ...
      Read Full Article
    1-3 of 3
  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
    4. Miscellaneous:

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

    1. (3 articles) Institute of Applied Physics
    2. (3 articles) Nizhny Novgorod State Medical Academy
    3. (3 articles) Natalia D. Gladkova
    4. (3 articles) Maria M. Karabut
    5. (2 articles) Grigory V. Gelikonov
    6. (2 articles) Valentin M. Gelikonov
    7. (2 articles) Elena B. Kiseleva
    8. (2 articles) Sun Yat-Sen University
    9. (2 articles) National Institutes of Health
    10. (1 articles) Elena V. Zagaynova
    11. (1 articles) Olga S. Streltsova
    12. (1 articles) Pavel A. Shilyagin
    13. (1 articles) Dalhousie University
    14. (1 articles) National University of Singapore
    15. (1 articles) Singapore Eye Research Institute
    16. (1 articles) Duke University
    17. (1 articles) Sharon F. Freedman
    18. (1 articles) Jodhbir S. Mehta
    19. (1 articles) Cynthia A. Toth
    20. (1 articles) Joseph A. Izatt
  3. Popular Articles

  4. Picture Gallery

    Feature Of The Week 3/13/11: Russian Scientists Investigate Cross Polarization OCT for Early Bladder Cancer Detection Vessel-contrast enhancement in label-free optical coherence angiography based on phase and amplitude speckle variability Multimodal optical coherence tomography for in vivo imaging of brain tissue structure and microvascular network at glioblastoma Spectrometer calibration with reduced dispersion for optical coherence tomography High‐Aspect‐Ratio Plasmonic Heterostructures for In Vivo Enhanced Optical Coherence Tomography Imaging in the Second Near‐Infrared Biological Window Influence of sleep quality on macula and retinal nerve fiber layer in caucasian healthy adolescents: A cross-sectional assessment with optical coherence tomography Comparison of measurements of anterior chamber angle via anterior segment optical coherence tomography and ultrasound biomicroscopy Optical coherence tomography angiography (OCTA) findings of microvascular and neural changes in primary pulmonary hypertension Optical coherence tomography vs fundus photography in detecting macular edema in subjects with type 2 diabetes (Thesis) Extrafoveal müller cells detection in vivo in the human retina: A pilot study based on optical coherence tomography Auto-Processed Retinal Vessel Shadow View Images From Bedside Optical Coherence Tomography to Evaluate Plus Disease in Retinopathy of Prematurity Spectral-Domain Optical Coherence Tomography Is More Sensitive for Hydroxychloroquine-Related Structural Abnormalities Than Short-Wavelength and Near-Infrared Autofluorescence