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Abstract #2619

Simultaneous Tuning of Multiple Modes for an RF Transmit Array

Mikhail Kozlov1, Robert Turner1

1Max Planck Institute for Human Cognitive and Brain Sciences , Leipzig, Saxony, Germany

We implement a dual-domain optimization approach, which results in improved performance for 7 and 9.4 T head arrays in multi-mode operation, without limiting the use of static RF shimming and even pTX. For both 7 and 9.4T arrays, dual-domain optimization resulted in negligible Parray_refl (less than 3% of Ptransmit) for given modes and nearly optimal transmit performance in all modes.