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Moment method analysis of mutual interaction in MRI phased array coils

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Abstract

We describe the use of a computational method for determining the overlap distance minimizing the mutual interaction between two adjacent coils that constitute a part of a phased array system used in MRI. The method is based upon the method of moments, and the analysis is carried out at a target imaging frequency to obtain the overlap distance. For a variety of complex RF phased array coils, we can determine, using the proposed approach, the overlap distance between nearest neighbor block element RF coils such that the mutual interaction is nullified or minimized. We give experimental results to validate the proposed approach. When compared with the experimental data, our theoretical prediction is in excellent agreement.

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Author notes

  1. Hiroyuki Fujita (Manager)

    Present address: Research and Development, USA Instruments, Inc., 1515 Danner Drive, 44202, Aurora, OH, USA

Authors and Affiliations

  1. Marconi Medical Systems, Inc., 595 Miner Road, 44143, Cleveland, OH, USA

    Hiroyuki Fujita (Manager), John W. Missal & Michael A. Morich

Authors
  1. Hiroyuki Fujita
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  2. John W. Missal
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  3. Michael A. Morich
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Correspondence to Hiroyuki Fujita.

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Fujita, H., Missal, J.W. & Morich, M.A. Moment method analysis of mutual interaction in MRI phased array coils. MAGMA 10, 84–92 (2000). https://doi.org/10.1007/BF02601843

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  • DOI: https://doi.org/10.1007/BF02601843

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