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Abstract #5463

Loopoles vs. conventional MR loops under safety considerations

Jörg Felder1, Chang-Hoon Choi1, and N. Jon Shah1,2

1Institute of Neuroscience and Medicine (INM-4), Forschungszentrum Jülich, Jülich, Germany, 2Faculty of Medicine, Department of Neurology, JARA, RWTH Aachen University, Aachen, Germany

While the application of loopole configurations may be beneficial to improve B1 distribution at high fields it comes with the drawback of reduced voltage withstanding capability during transmission. This either implies use with lower transmit power or the addition of more capacitors which in turn degrades the quality factor of the coil and thus efficiency and sensitivity of the antenna element.

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