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An interface to connect a 16-channel transmit array to an 8-channel parallel transmit system

MPS-Authors
/persons/resource/persons84213

Shajan,  G
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons83973

Hoffmann,  J
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84187

Scheffler,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84145

Pohmann,  R
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

External Resource

http://www.ismrm.org/15/program_files/TueEPS02.htm
(Publisher version)

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Citation

Shajan, G., Hoffmann, J., Scheffler, K., & Pohmann, R. (2015). An interface to connect a 16-channel transmit array to an 8-channel parallel transmit system. Poster presented at 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015), Toronto, Canada.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-45FD-C
Abstract
For head sized volume transmit arrays at ultra-high field, 16 coil elements arranged in 2x8 is beneficial than eight coils arranged in 2x4 configuration. The aim of this project is to develop and qualify an interface to connect a 16-channel transmit array to an 8-channel parallel transmit system. The interface module consists of eight capacitive loaded miniaturized Wilkinson power splitters. Each pTx channel drives two coil elements through the interface module. Transmit (B1+) field maps were acquired in both CP mode and CP2+ mode and compared with the numerical model. The transmit array performance closely followed the predicted results.