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Abstract #1589

A 2D High-Pass Ladder RF Coil Architecture for UHF MRI

Sayim Gokyar1, Henning U. Voss1, Victor Taracila2, Fraser J. L. Robb2, Michael Bernico3, Douglas Kelley3, Douglas J. Ballon1, and Simone Angela Winkler1
1Radiology, Weill Cornell Medicine, New York, NY, United States, 2General Electric Healthcare, Aurora, OH, United States, 3General Electric Healthcare Technologies, Waukesha, WI, United States

We propose a two-dimensional cylindrical high-pass ladder (2D c-HPL) volume coil architecture as a new class of radiofrequency coils to be used for 7T Body MR imaging. As a first simplified experimental proof-of-concept we show feasibility in a head sized coil. In silico results show 45% more homogeneous B1 field distribution with 25% lower specific absorption rate compared to a similar size birdcage coil. Experimental results are in good agreement with theory and numerical simulations. The proposed architecture shows promise to solve the longstanding open challenge of volume coil B1+ inhomogeneity in UHF MRI applications.

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