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  • Conference proceedings
  • © 2000

Biomag 96

Volume 1/Volume 2 Proceedings of the Tenth International Conference on Biomagnetism

Editors:

  1. Cheryl J. Aine

    1. Radiology Service Albuquerque, VA Medical Center, Albuquerque, USA

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  2. Gerhard Stroink

    1. Department of Physics, Dalhousie University, Halifax, Nova Scotia, Canada

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  3. Charles C. Wood

    1. Biophysics Group (P-21), MS D454, Los Alamos National Laboratory, Los Alamos, USA

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  4. Yoshio Okada

    1. Department of New Mexico School of Medicine, Albuquerque, USA

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  5. Stephen J. Swithenby

    1. Department of Physics and Astronomy, The Open University, Milton Keynes, UK

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Table of contents (289 papers)

  1. Front Matter

    Pages i-xxxiii
    PDF

  2. Biomagnetic Instrumentation

    1. Front Matter

      Pages 1-1
      PDF

    3. Reference noise cancellation: Optimizations and Caveats

      • G. R. Barnes, A. A. Ioannides
      Pages 7-10

    4. Positioning of MCG Measurement Equipment

      • M. Borchardt, E. Krause, G. Lindner
      Pages 11-14

    5. A Low-Noise, Integrated DC SQUID Magnetometer for Applications in Biomagnetism

      • R. Cantor, V. Vinetskiy, A. Matlashov
      Pages 15-19

    6. Magnetocardiograms Recorded by First-Order Gradiometers Using HTS rf SQUIDs

      • C. A. Copetti, H. Soltner, Y. Zhang, H. Schuett, H. Rongen, G. Brandenburg et al.
      Pages 20-23

    8. Magnetic Measurement Techniques for Locating Foreign Bodies in Humans

      • E. Costa Monteiro, C. Kelber, E. Andrade Lima, P. Costa Ribeiro, A. C. Bruno, C. Hall Barbosa et al.
      Pages 28-31

    9. Optimisation of Co-Registration Procedures for Biomagnetic Measurements Using a Thermoplastic Mask

      • J. Dammers, G. R. Barnes, F. Weise, J. Gross, B. S. Clewett, A. A. Ioannides et al.
      Pages 32-34

    10. Design of a Magnetically Shielded Room for Development of HTS SQUID Systems for Magnetocardiography

      • C. R. Davidson, R. H. Griffin, K. J. Best, L. Maltin, W. Wolf, Y. Zhang et al.
      Pages 35-38

    11. A Digital-Signal-Processor (DSP) Flux-Locked-Loop (FLL) for LTC SQUIDs with Automatic Reset and Feedback Cancellation

      • E. R. Flynn, R. Bracht, R. H. Kraus Jr., P. M. Maas, P. Ruminer, M. Stettler
      Pages 39-42

    12. A 32-Channel MCG System Cooled by a GM/JT Cryocooler

      • S. Fujimoto, K. Sata, N. Fukui, E. Haraguchi, T. Kido, K. Nishiguchi et al.
      Pages 43-46

    15. 32 Channel High Tc SQUID System for Biomagnetism

      • H. Itozaki, H. Kugai, T. Nagaishi, H. Toyoda, T. Hirano, Y. Haruta et al.
      Pages 55-58

    16. Source Detectability for Multichannel Biomagnetic Sensors

      • R. T. Johnson, W. C. Black, D. S. Buchanan
      Pages 59-62

    17. A Digital Flux-Locked Loop for High Temperature SQUID Magnetometer and Gradiometer Systems with Field Cancellation

      • R. H. Kraus Jr., R. Bracht, E. R. Flynn, Q. Jia, P. M. Maas, D. Reagor et al.
      Pages 63-66

    18. Characterisation of a Planar Second-Order Gradiometer in a Lightly Shielded Environment

      • G. Lang, D. Hutson, R. G. Weston, U. Klein, U. Shahani, A. I. Weir et al.
      Pages 67-70
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About this book

A modified Linear Estimation Approach was performed to reconstruct current sources within the heart. Based on MRI data sets the Boundary Element Method was used to create tailored multicompartment models of the human thorax which were used to solve the forward problem of magnetocardiography. The ability of the proposed method was demonstrated for the localization of a single current dipole as an example of a focal source. By means of introducing small shiftings to all reconstruction dipoles during linear estimation solution as well as performing a successive focussing strategy ignoring places without significant electrical activity the method could easily be extended to the reconstruction of real 3D sources. Based on a special minimum-norm solution the source volume can be estimated applying a finite element approximation using cube elements. The size of an extended current source can be estimated by superimposing the reconstructed dipoles to an equivalent dipole and comparing the corresponding volume with the sphere which would be related to the equivalent dipole. The deviation of these volumes can be taken as a criterion for non-dipolarity of sources.
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Keywords

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Editors and Affiliations

  • Radiology Service Albuquerque, VA Medical Center, Albuquerque, USA

    Cheryl J. Aine

  • Department of Physics, Dalhousie University, Halifax, Nova Scotia, Canada

    Gerhard Stroink

  • Biophysics Group (P-21), MS D454, Los Alamos National Laboratory, Los Alamos, USA

    Charles C. Wood

  • Department of New Mexico School of Medicine, Albuquerque, USA

    Yoshio Okada

  • Department of Physics and Astronomy, The Open University, Milton Keynes, UK

    Stephen J. Swithenby

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Bibliographic Information

  • Book Title: Biomag 96

  • Book Subtitle: Volume 1/Volume 2 Proceedings of the Tenth International Conference on Biomagnetism

  • Editors: Cheryl J. Aine, Gerhard Stroink, Charles C. Wood, Yoshio Okada, Stephen J. Swithenby

  • DOI: https://doi.org/10.1007/978-1-4612-1260-7

  • Publisher: Springer New York, NY

  • eBook Packages: Springer Book Archive

  • Copyright Information: Springer Science+Business Media New York 2000

  • Hardcover ISBN: 978-0-387-98915-0Due: 16 June 2000

  • Softcover ISBN: 978-1-4612-7066-9Published: 20 April 2013

  • eBook ISBN: 978-1-4612-1260-7Published: 11 November 2013

  • Edition Number: 1

  • Number of Pages: LXVIII, 1185

  • Number of Illustrations: 370 illustrations in colour

  • Topics: Physics, general

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Buy it now

eBook USD 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access

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