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Magnetic field distribution of birdcage coil for 4 T MRI system with no lumped circuit elements

Published: 26 October 2011 Publication History

Abstract

Recently, Magnetic Resonance Imaging (MRI) system which operates up to under 3 T is being used in clinical practice in Japan. In order to achieve the requirement of obtaining more high-quality images and short imaging time, devices utilize high magnetic field (>3 T) and high power electromagnetic (EM) wave pulses has been developed. The rise of the static magnetic field is proportional to the increase of the EM wave frequency which brings down issues of variation in capacitance used in the radio frequency (RF) coil for MRI system. In addition, increasing power causes problems of withstanding voltage and these approach leads to generation of non-uniform magnetic field inside the RF coil. Hence, if we can develop the birdcage coil for MRI system with no lumped circuit elements, it is extremely useful. In this paper, birdcage coil without the use of lumped circuit elements for 4 T MRI system was proposed and its magnetic field distribution was investigated. As a result, it was confirmed that the proposed birdcage coil has equivalent performances of the conventional birdcage coil which includes several capacitors.

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  • (2020)Recent Progress in Birdcage RF Coil Technology for MRI SystemDiagnostics10.3390/diagnostics1012101710:12(1017)Online publication date: 27-Nov-2020

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    ISABEL '11: Proceedings of the 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies
    October 2011
    949 pages
    ISBN:9781450309134
    DOI:10.1145/2093698
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    • Universitat Pompeu Fabra
    • IEEE
    • Technical University of Catalonia Spain: Technical University of Catalonia (UPC), Spain
    • River Publishers: River Publishers
    • CTTC: Technological Center for Telecommunications of Catalonia
    • CTIF: Kyranova Ltd, Center for TeleInFrastruktur

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    New York, NY, United States

    Publication History

    Published: 26 October 2011

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    Author Tags

    1. birdcage coil
    2. magnetic field distribution
    3. magnetic resonance imaging (MRI)

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    • Technical University of Catalonia Spain
    • River Publishers
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    • CTIF

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    • (2020)Recent Progress in Birdcage RF Coil Technology for MRI SystemDiagnostics10.3390/diagnostics1012101710:12(1017)Online publication date: 27-Nov-2020

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