B1 homogenization in MRI by multilayer coupled coils.

Wang, Shumin; Murphy-Boesch, Joseph; Merkle, Hellmut; Koretsky, Alan P; Duyn, Jeff H · IEEE Trans Med Imaging · 2009

basic_science · Level V

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Abstract

Transmit B(1)(+) field homogenization in high-field ( > 3.0 T) human magnetic resonance imaging (MRI) is challenging due to radio-frequency wavelength effects. An approach based on appropriately coupling surface coils to a volume coil was investigated. Electromagnetic simulation results demonstrated the feasibility and effectiveness of this method in proton MRI of the human head at 7.0 T.

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