High-Tc SQUID magnetocardiography imaging system

Hong Chang Yang, S. Y. Hung, C. H. Wu, J. C. Chen, S. J. Hsu, S. H. Liao, H. E. Horng

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We set up a high-Tc SQUID system for magnetocardiography (MCG) in a moderately magnetically shielded room. The electronically balanced gradiometer consists of superconducting quantum interference device (SQUID) magnetometer. One reference SQUID was mounted above the sensing SQUID while the sensing SQUID is seated at the bottom of the cryostat. The baseline of the gradiometer is varied from 5 cm to 7 cm. The output of the MCG signal was filtered with the band pass filter (0.5 - 40 Hz) and the power-line filter. The MCG system was used to detect the magnetic signal of the human heart. Equivalent current sources were used to study the inverse problem.

    Original languageEnglish
    JournalNeurology and Clinical Neurophysiology
    Volume2004
    Publication statusPublished - 2004 Jan 1

    Keywords

    • Gradiometer
    • Magnetocardiogram
    • Magnetometer

    ASJC Scopus subject areas

    • Neuroscience(all)

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