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Abstract #0051

Optimizing 7T Spine Array Design Through Offsetting of Transmit and Receive Elements and Quadrature Excitation

Qi Duan1, Daniel K. Sodickson1, Riccardo Lattanzi1, Bei Zhang1, Graham C. Wiggins1

1Center for Biomedical Imaging, Department of Radiology, NYU School of Medicine, New York, NY, United States

This abstract presents a novel 7T spine array design for optimizing SNR at the regions of interest. This design takes into account opportunities for quadrature excitation and the twisting of B1+ and B1- fields to optimize SNR within the ROIs. The design parameters were quantitatively optimized via full wave simulation. The benefits of the proposed design were validated via actual MR scan with higher SNR within ROI, more efficient excitation, and less peak local heating than alternative designs. This design can be easily extended for larger longitudinal coverage, providing a more efficient excitation and MR images without obvious signal nulls.