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Pierre-Francois van de Moortele

University of Minnesota, Minneapolis United States


Contributions

  • A Coaxial RF Applicator for Ultra-High Field Human MRI
    A Coaxial RF Applicator for Ultra-High Field Human MRI

    In our work we propose a novel radio-frequency concept for ultra-high field human magnetic resonance imaging – two-channel slotted coaxial cavity RF applicator – volume coil, that doesn’t need lumped elements for tuning. Physical dimensions made the proposed conducting structure resonant at the required frequency without tuning lumped elements. The design was relatively simple, robust and required only a few additional reactive elements for the applicator’s input impedance matching. The transmit efficiency and homogeneity of the excitation field were only 20% and 4% lower compared to a conventional 8-channel head array.

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