安静および運動負荷における三次元心磁図の周波数成分の比較  [in Japanese] Comparing of Frequency Components of Rest and Exercise-induced Three-Dimensional Magnetocardiogram  [in Japanese]

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Author(s)

Abstract

  Magnetocardiogram (MCG) is a non-invasive method for measuring functional information concerning the electrical activities of the heart. In this study, the exercise-induced MCG and body surface potential map (BSPM) were measured for normal subjects. MCG were measured by a three dimensional second-order gradiometer connected to 39-channel superconducting quantum interface device (SQUID), which can detect magnetic field components perpendicular to the chest wall (Bz) and tangential to the chest wall (Bx, By) simultaneously. Time-frequency analysis (wavelet analysis) was applied to the MCG to not examine the change of power spectrum of QRS complex and ST segment. We found that the frequency component of Bx, By, Bz in MCG with cross-correlation function was different. When I watch a temporal response of the frequency, 2-8Hz components showed a remarkable change. It is thought that frequency components may affect between rest time and after the exercise.

Journal

  • Journal of the Magnetics Society of Japan

    Journal of the Magnetics Society of Japan 34(2), 151-155, 2010

    The Magnetics Society of Japan

Codes

  • NII Article ID (NAID)
    130000262840
  • NII NACSIS-CAT ID (NCID)
    AA12297999
  • Text Lang
    JPN
  • ISSN
    1882-2924
  • NDL Article ID
    10610132
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z15-398
  • Data Source
    NDL  J-STAGE 
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