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 ...

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    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 ...

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    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 ...

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    1-3 of 3
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  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. (2 articles) UC Irvine
    7. (1 articles) Moscow State University
    8. (1 articles) Felix I. Feldchtein
    9. (1 articles) National University of Singapore
    10. (1 articles) University Federico II
    11. (1 articles) University of Copenhagen
    12. (1 articles) Cardiff University
    13. (1 articles) Nanyang Technological University
    14. (1 articles) Gregor B. E. Jemec
    15. (1 articles) Friedemann Paul
    16. (1 articles) Lotte Themstrup
    17. (1 articles) Carl Zeiss Meditec
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    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 Normative data and minimally detectable change for inner retinal layer thicknesses using a semi-automated OCT image segmentation pipeline Acoustic Radiation Force Optical Coherence Elastography Advances in Optical Coherence Tomography and Confocal Laser Endomicroscopy in Pulmonary Diseases To Evaluate the Effect of Chronic Obstructive Pulmonary Disease on Retinal and Choroidal Thicknesses Measured by Optical Coherence Tomography Neovascularized Best Disease in Child: Contribution of Optical Coherence Tomography Angiography DeshadowGAN: A Deep Learning Approach to Remove Shadows from Optical Coherence Tomography Images Optical coherence tomography of onychomycosis: proposed terminology and a suggestion of practical usage Evaluation of corneal epithelial thickness in glaucomatous patients using anterior‐segment optical coherence tomography Thickness mapping of individual retinal layers and sectors by Spectralis Spectral Domain‐optical Coherence Tomography in Autosomal Dominant Optic Atrophy