若年者胃電図の数値解析とその数理モデル化に関する研究  [in Japanese] A Study of Numerical Analysis and Mathematical Modeling of Electrogastrograms in the Young Subjects  [in Japanese]

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Author(s)

    • 木下 史也 Kinoshita Fumiya
    • 名古屋大学大学院情報科学研究科情報システム学専攻 Department of Infomation Engineering, Graduate School of Infomation Science, Nagoya University
    • 森 柚樹 Mori Yuki
    • 福井大学大学院工学研究科知能システム工学専攻 Department of Human & Artificial Intelligent System, Graduate School of Engineering, University of Fukui
    • 松浦 康之 Matsuura Yasuyuki
    • 福井大学大学院工学研究科知能システム工学専攻 Department of Human & Artificial Intelligent System, Graduate School of Engineering, University of Fukui
    • 高田 宗樹 Takada Hiroki
    • 福井大学大学院工学研究科知能システム工学専攻 Department of Human & Artificial Intelligent System, Graduate School of Engineering, University of Fukui
    • 宮尾 克 Miyao Masaru
    • 名古屋大学大学院情報科学研究科情報システム学専攻 Department of Infomation Engineering, Graduate School of Infomation Science, Nagoya University

Abstract

<p>The electrical activity of the gastrointestine is measured using an electrogastrograph and presented as an electrogastrogram (EGG). Electrogastrography is a noninvasive procedure to evaluate gastrointestinal motility and autonomic nervous system activity. However, EGG do not have been applied to clinical fields as electrocardiogram and electromyogram because EGGs are often contaminated by electro activity in the myocardia and muscles of diaphragm with respiration; furthermore, we do not understand the relationship between EGG and the gastrointestinal motility. Analytical methods of the EGG do not have been established yet. In this paper, the author compared an EGG measured in the abovementioned experiment with numerical solutions to the mathematical model describing the EGG. It is known that the van der pol equation (VPE) is appropriate for obtaining a mathematical model of the EGG because the waveform of the electric potential in the Cajal cells is similar to the graphs of numerical solutions to the VPE. In our previous study, the mathematical model, a system of stochastic differential equations (SDEs), was improved by adding the VPE to a periodic function and random white noises that were analogous to the intestinal motility and other biosignals, respectively. The numerical solutions were quantitatively evaluated by comparing with the distribution of the EGG, its translation error <i>E<sub>trans</sub></i> estimated by the Wayland algorithm, and <i>E<sub>trans</sub></i>' estimated by the Double-Wayland algorithm which was sensitive to stochastic variations.</p>

Journal

  • IEEJ Transactions on Electronics, Information and Systems

    IEEJ Transactions on Electronics, Information and Systems 136(9), 1261-1267, 2016

    The Institute of Electrical Engineers of Japan

Codes

  • NII Article ID (NAID)
    130005262336
  • NII NACSIS-CAT ID (NCID)
    AN10065950
  • Text Lang
    JPN
  • ISSN
    0385-4221
  • NDL Article ID
    027650615
  • NDL Call No.
    Z16-795
  • Data Source
    NDL  J-STAGE 
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