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Abstract #4250

Investigation of Various Self-Decoupled Body Coil Arrays at Ultrahigh Fields

Ming Lu1,2,3, William A. Grissom1,2,4, John C. Gore1,2,4, and Xinqiang Yan1,2
1Vanderbilt University Institute of Imaging Science, Nashville, TN, United States, 2Department of Radiology, Vanderbilt University Medical Center, Nashville, TN, United States, 3College of Nuclear Equipment and Nuclear Engineering, Yantai University, Yantai, China, 4Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, United States

At ultrahigh fields, to achieve ultimate receive performance, the optimal current patterns go beyond the uniform current of loops. A dipole-like current is desired and can be realized by directly adding dipole antennas or by inducing dipole-mode in loops. In this work, we investigated the receive performance of different kinds of arrays with self-decoupled loops (SDLs) or/and self-decoupled folded dipoles (SDFDs). These coils have dipole-like as well as loop-like patterns and are highly isolated. We found that the combination of SDL and SDFD exhibits considerable improvement for both peripheral/central SNR and parallel imaging, even compared to mixed loop+dipole arrays.

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