Abstract #0551
Power balance considerations for RF transmit coil arrays
Andre Kuehne 1,2 , Sigrun Goluch 1,2 , Ewald Moser 1,2 , and Elmar Laistler 1,2
1
Center for Medical Physics and Biomedical
Engineering, Medical University of Vienna, Vienna,
Vienna, Austria,
2
MR
Center of Excellence, Medical University of Vienna,
Vienna, Vienna, Austria
The bower balance of an RF coil gives valuable insight
into its performance. For multi-channel arrays, the
amount of power deposited in the load, the coil itself
or radiated depends on the superposition of the
single-channel fields. In this work, the power
correlation matrix formalism is extended to encompass
all terms of the power balance, thus allowing
straight-forward evaluation of the power balance for any
excitation, worst-case estimates, and providing means to
verify EM simulation integrity.
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