1. Articles from L. B. Timofeeva

    1-3 of 3
    1. Cross-Polarization Optical Coherence Tomography in Comparative in vivo and ex vivo Studies of the Optical Properties of Normal and Tumorous Brain Tissues

      Cross-Polarization Optical Coherence Tomography in Comparative in vivo and ex vivo Studies of the Optical Properties of Normal and Tumorous Brain Tissues

      The aim of the study was to provide visual and quantitative evaluation of tumorous and normal brain tissue images obtained by cross-polarization optical coherence tomography (CP OCT) in a comparative in vivo and ex vivo study. Materials and Methods. The CP OCT as a non-damaging noninvasive optical method for tissue structure imaging was used in the study. It enables obtaining volumetric images of 2.4×2.4×1.25 mm 3 in size in real time within a short time of 26 s. The objects were tumorous and normal brain tissues of 12 experimental animals (Wistar rats): 4 — intact, 4 ...

      Read Full Article
    2. Complementary Study of Collagen State in Bladder Diseases Using Cross-Polarization Optical Coherence Tomography, Nonlinear and Atomic Force Microscopy

      Complementary Study of Collagen State in Bladder Diseases Using Cross-Polarization Optical Coherence Tomography, Nonlinear and Atomic Force Microscopy

      The aim of the study is to demonstrate the potential of cross-polarization optical coherence tomography (CP OCT) as a minimally invasive real-time technique for detection of bladder cancer against a background of severe inflammation. Materials and Methods. For the verification of CP OCT diagnostic data related to the condition of collagen comparison with high-resolution microscopy inspection was performed and correlation of the results was calculated. The CP OCT study was performed on samples of tissue with muscle-invasive urothelial carcinoma T 2–3 N 0–х M 0 (G2, 3) in 18 patients ranging in age from 50 to 64 obtained ...

      Read Full Article
    3. Quantitative Evaluation of the Polarization Characteristics of Coronary Arteries Atherosclerotic Plaques at Different Development Stages

      Quantitative Evaluation of the Polarization Characteristics of Coronary Arteries Atherosclerotic Plaques at Different Development Stages

      The aim of the investigation was to develop an approach to quantitative evaluation of polarization properties (birefringence and cross-scattering) basing on cross-polarization OCT images (CP OCT) in order to characterize the development stages of atherosclerotic plaques and to reveal unstable ones. Materials and Methods. We report on quantitative analysis of CP OCT images of the seven development stages of atherosclerotic plaques ex vivo . Integral depolarization factor (IDF) and effective birefringence coefficient (Δ n ) were proposed as parameters for quantitative characterization of the CP OCT images. Results. Calculation of the IDF and Δ n in the local region of interest (intima/fibrous cap ...

      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) Elena B. Kiseleva
    4. (3 articles) Natalia D. Gladkova
    5. (2 articles) Mikhail Y. Kirillin
    6. (1 articles) Moscow State University
    7. (1 articles) Felix I. Feldchtein
  3. Popular Articles

  4. Picture Gallery

    Quantitative Evaluation of the Polarization Characteristics of Coronary Arteries Atherosclerotic Plaques at Different Development Stages Complementary Study of Collagen State in Bladder Diseases Using Cross-Polarization Optical Coherence Tomography, Nonlinear and Atomic Force Microscopy Cross-Polarization Optical Coherence Tomography in Comparative in vivo and ex vivo Studies of the Optical Properties of Normal and Tumorous Brain Tissues ORCA study: real-world versus reading centre assessment of disease activity of neovascular age-related macular degeneration (nAMD) Role of visual evoked potentials and optical coherence tomography in the screening for optic pathway gliomas in patients with neurofibromatosis type I An assessment of the quality of optical coherence tomography image acquisition Optical coherence tomography evaluation of vertebrobasilar artery stenosis: case series and literature review Dispersion correction for optical coherence tomography by the stepped detection algorithm in the fractional Fourier domain Macular Optical Coherence Tomography Angiography in Nephropathic Patients with Diabetic Retinopathy in Iran: A Prospective Case–Control Study Methodological Challenges of Deep Learning in Optical Coherence Tomography for Retinal Diseases: A Review Plaque morphology assessed by optical coherence tomography in the culprit lesions of the first episode of acute myocardial infarction in patients with low low-density lipoprotein cholesterol level Quantifying lipofuscin in retinal pigment epithelium in vivo by visible-light optical coherence tomography-based multimodal imaging