1. Articles from A. Yu. Potlov

    1-3 of 3
    1. Selection of Flow-Diverter Stent Models Using Optical Coherence Tomography and Mathematical Modeling of Hemodynamics

      Selection of Flow-Diverter Stent Models Using Optical Coherence Tomography and Mathematical Modeling of Hemodynamics

      We describe a method for increasing the effectiveness of surgery to position flow-diverter stents into cerebral arteries with aneurysms based on the combined use of mathematical modeling of hemodynamics and compression elastography. Approaches to determining Young's modulus and the Poisson's ratio for phantom of cerebral artery walls on the basis of endoscopic optical coherence tomography data were developed and tested. The applicability of this method was verified using a model of internal carotid artery aneurysm using a mathematical hemodynamic model taking into account the mechanical properties of the cerebral artery wall.

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    2. Monte-Carlo simulation of OCT structural images of human skin using experimental B-scans and voxel based approach to optical properties distribution

      Monte-Carlo simulation of OCT structural images of human skin using experimental B-scans and voxel based approach to optical properties distribution

      A method of optical coherence tomography (OCT) structural images reconstruction using Monte Carlo simulations is described. Biological object is considered as a set of 3D elements that allow simulation of media, structure of which cannot be described analytically. Each voxel is characterized by its refractive index and anisotropy parameter, scattering and absorption coefficients. B-scans of the inner structure are used to reconstruct a simulated image instead of analytical representation of the boundary geometry. Henye-Greenstein scattering function, Beer-Lambert-Bouguer law and Fresnel equations are used for photon transport description. Efficiency of the described technique is checked by the comparison of the simulated ...

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    3. Feature Of The Week 3/23/14: Tambov State Technical University Investigates One Specific Velocity Color Mapping One Specific Velocity Color Mapping

      Feature Of The Week 3/23/14: Tambov State Technical University Investigates One Specific Velocity Color Mapping One Specific Velocity Color Mapping

      The method of sign-sensitive mapping of the given range of velocities in a flow with complex geometry based on the principles of optical coherence tomography is described. To produce an alternating-sign flow, the 1% aqueous intralipid solution and the tilted capillary entry with the contraction coefficient 4:1 are used. The mapping is controlled using two parameters, the value of one specific velocity (OSV) for mapping and the accuracy of its determination. The structure image and two OSV images (for positive and negative direction of motion) are obtained as a result of selecting and processing the relevant parts of the ...

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    1-3 of 3
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  2. Topics in the News

    1. (2 articles) Sergey G. Proskurin
    2. (1 articles) Harvard University
    3. (1 articles) Thomas Jefferson University
    4. (1 articles) Massachusetts General Hospital
    5. (1 articles) Nippon Medical School
    6. (1 articles) Kyung Hee University
    7. (1 articles) Wakayama Medical University
    8. (1 articles) Masamichi Takano
    9. (1 articles) Carol L. Shields
    10. (1 articles) Ik-Kyung Jang
    11. (1 articles) Kyoichi Mizuno
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    Feature Of The Week 3/23/14: Tambov State Technical University Investigates One Specific Velocity Color Mapping One Specific Velocity Color Mapping Monte-Carlo simulation of OCT structural images of human skin using experimental B-scans and voxel based approach to optical properties distribution Selection of Flow-Diverter Stent Models Using Optical Coherence Tomography and Mathematical Modeling of Hemodynamics Residual thrombus following plaque disruption contributes to rapid plaque progression: in-vivo serial optical coherence tomography imaging Pigmented Iris Lesion on Anterior-Segment Swept-Source Optical Coherence Tomography Corneal epithelial thickness analysis of forme fruste keratoconus with optical coherence tomography Saline as an alternative to radio-contrast for optical coherence tomography guided percutaneous coronary intervention: A prospective comparison Soliton microcomb based spectral domain optical coherence tomography Myocardial infarction with non-obstructive coronary arteries (MINOCA): Intracoronary imaging-based diagnosis and management Optical coherence tomography-guided percutaneous coronary intervention: a review of current clinical applications Initial Study for the Determination of the Sequence of Intersecting Lines between Gel Pens and Seals by Optical Coherence Tomography Intraoperative optical coherence tomography-assisted displacement of prepapillary membrane in eyes with optic disc pit maculopathy