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Abstract #3545

7T 8-channel pTx head coil with high B1+ efficiency optimized for MRS

Frank Seifert1, Harald Pfeiffer1, Ralf Mekle1, Patrick Waxmann1, and Bernd Ittermann1

1Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany

A 7T 8-channel transmit/receive head volume coil is introduced which is capable to produce transmit fields in the human brain of more than 50 ┬ÁT necessary for single voxel MRS with acceptable chemical shift artifacts. Key to this good transmit field efficiency was careful design and material selection but also the choice of relatively short coil elements. From the simulation based design process appropriate input power limits were concluded which allow safe operation of the coil in compliance with IEC 60601-2-33.

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