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Abstract #4502

In-silico shimming performance of a bore-sized 2-D UHF volume coil for different anatomies at 7T

Sayim Gokyar1, Henning U. Voss2, Victor Taracila3, Fraser Robb3, Douglas J. Ballon1, and Simone Winkler1
1Radiology, Weill Cornell Medicine, New York, NY, United States, 2College of Human Ecology, Cornell University, Ithaca, NY, United States, 3General Electric Healthcare, Aurora, OH, United States


We propose a two-dimensional cylindrical high-pass ladder (2D c-HPL) coil concept and investigate the contribution of the longitudinal dimension to utilize a bore-mounted general-purpose clinical volume coil for ultra-high field MRI. Theory and in-silico results show that this architecture exhibits improved B1 field uniformity for specific anatomies and regions such as brain (a coefficient of variation of 12.3%), cerebellum (4.9%), heart (16.7%), prostate (2.8%), and whole chest (36.8%). This could prove particularly useful for whole-body clinical imaging and could open new pathways for clinical diagnostics in UHF MRI.

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