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Abstract #3237

Bumped Self-decoupled RF Coil

Ming Lu1, John C. Gore2,3, and Xinqiang Yan2,3
1College of nuclear equipment and nuclear engineering, Yantai University, Yantai, China, 2Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States, 3Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, United States

Synopsis

In this work, we propose a novel “bump” design to further improve the coil robustness versus loadings. For the loop-mode self-decoupled coil, the rotating magnetic field (composed of Bx and By) and electric field are mainly determined by the feed and arm conductors; the frequency shift that decreases coil robustness is mainly caused by the conductor with small-valued mode capacitors (referred to as mode conductor for short). Therefore, a bumped coil with a spaced mode conductor but unchanged arm and feed conductors potentially provides more robust tuning/matching performance without decreasing coil efficiency.

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