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2012 Fiscal Year Final Research Report

Development of the bedside type fetus magnetocardiograph and elucidation of the development process of fetus autonomic nerve

Research Project

  • PDF
Project/Area Number 21300158
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biomedical engineering/Biological material science
Research InstitutionIwate University

Principal Investigator

KOBAYASHI Koichiro  岩手大学, 工学部, 准教授 (60277233)

Co-Investigator(Kenkyū-buntansha) FUKUSHIMA Akimune  岩手医科大学, 医学部, 准教授 (20208937)
OYAMA Daisuke  金沢工業大学, 先端電子技術応用研究所, 助教 (60569888)
Project Period (FY) 2009 – 2012
Keywords生体生命情報学 / 医用診断機器開発 / 計測工学 / 胎児自律神経 / 心磁図計測
Research Abstract

Fetus magnetocardiograph which did not require the magnetically shielded room was developed. The fetus magnetocardiograph is using the low noise and wide range type analog control circuit. The fetus magnetocardiogram is weak signal, and it is measured in the condition that was buried in the noise. Then, noise rejection program using the independent component analysis and the Wiener filter was made. The extraction of the fetal heart rate fluctuation became possible. And, features of heart rate variability of the fetus which changed with the pregnancy progress were confirmed.

  • Research Products

    (12 results)

All 2012 2011 2010 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (4 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Active Magnetic Shielding using Symmetric Magnetic Field Sensor Method2012

    • Author(s)
      K. Kobayashi, A. Kon, M. Yoshizawa, Y. Uchikawa
    • Journal Title

      IEEE Trans. Magnetics

      Volume: Vol.48, No.11 Pages: 4554-4557

    • DOI

      DOI:10.1109/TMAG.2012.2197854

    • Peer Reviewed
  • [Journal Article] Prenatal Diagnosis of Fetal Arrhythmias and Assessment of Autonomic Nervous System Activity by Fetal Magneto- cardiography2012

    • Author(s)
      A. Fukushima, A. Matsumoto, M. Terata, T. Kanasugi, K. Nakai
    • Journal Title

      The Open Medical Devices Journal

      Volume: Vol.4 Pages: 13-21

    • DOI

      10.2174/1875181401204010013

    • Peer Reviewed
  • [Journal Article] Wide dynamic range analog FLL system using high-Tc SQUID for biomagnetic measurements2011

    • Author(s)
      K. Kobayashi, M. Yoshizawa, Y. Uchikawa
    • Journal Title

      IEEE Trans. Magnetics

      Volume: Vol.47, No.10 Pages: 2871-2873

    • DOI

      DOI:10.1109/TMAG.2011.2158199

    • Peer Reviewed
  • [Journal Article] Electric Current Imaging by Ultrasono- graphy and SQUID Magnetometry2011

    • Author(s)
      D. Oyama, M. Higuchi, Y. Adachi, J. Kawai, G. Uehara, H. Kado, K. Kobayashi
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: Vol.21, No.3 Pages: 440-443

    • DOI

      DOI:10.1109/TASC.2010.2084984

    • Peer Reviewed
  • [Journal Article] 胎児心磁図における独立成分分析とWiener filterを用いたノイズ除去2011

    • Author(s)
      佐藤嘉輝,小林宏一郎,中居賢司,福島明宗,吉澤正人,内川義則
    • Journal Title

      Journal of the Magnetics Society of Japan

      Volume: Vol.35, No.3 Pages: 308-311

    • DOI

      DOI:10.3379/msjmag.1104R016

    • Peer Reviewed
  • [Journal Article] 心磁図における独立成分分析を用いた環境磁気ノイズ除去-成分選択と縮約次元数決定の自動化-2010

    • Author(s)
      小林宏一郎,小山田健太,吉澤正人,内川義則
    • Journal Title

      Journal of the Magnetics Society of Japan

      Volume: Vol.34, No.2 Pages: 156-160

    • DOI

      DOI:10.3379/msjmag.1002R0010

    • Peer Reviewed
  • [Presentation] Development of wide dynamic range analog flux-locked loop using flux-quanta counting for SQUID magnetometer2012

    • Author(s)
      K. Kobayashi, D. Oyama, 他
    • Organizer
      Applied Superconductivity Conference
    • Place of Presentation
      Oregon Convention Center in Portland (USA)
    • Year and Date
      2012-10-08
  • [Presentation] 64 チャネル心磁計と187ch ベクトル合成心電計の開発ー臨床での意義と課題2012

    • Author(s)
      中居賢司,小林宏一郎, 他
    • Organizer
      日本生体磁気学会
    • Place of Presentation
      東京電機大学(東京都)
    • Year and Date
      2012-05-31
  • [Presentation] The parallel arithmetic method of digital FLL circuit for SQUID magnetometer using CPLD2011

    • Author(s)
      K. Kobayashi, D. Oyama, 他
    • Organizer
      Superconductivity Centennial Conference
    • Place of Presentation
      World Forum Convention Centre (Netherlands)
    • Year and Date
      2011-09-20
  • [Presentation] 64チャンネ心磁図による胎児不整脈の診断とその治療2010

    • Author(s)
      福島明宗,小林宏一郎, 他
    • Organizer
      日本生体磁気学会
    • Place of Presentation
      東京大学(千葉県)
    • Year and Date
      2010-07-29
  • [Book] InTech SUPERCONDUCTORS -PROPERTIES, TECHNOLOGY, AND APPLICATIONS2012

    • Author(s)
      K. Kobayashi, 他
    • Total Pages
      389-404
  • [Remarks]

    • URL

      http://www.wel.iwate-u.ac.jp/kobayashi/

URL: 

Published: 2014-08-29  

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