Abstract #1815
An interface to connect a 16-channel transmit array to an 8-channel parallel transmit system
Shajan G 1 , Jens Hoffmann 1 , Klaus Scheffler 1,2 , and Rolf Pohmann 1
1
Max Planck Institute for Biological
Cybernetics, Tuebingen, Baden Wuerttemberg, Germany,
2
Department
of Biomedical Magnetic Resonance, University Hospital,
Tuebingen, Baden Wuerttemberg, Germany
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.
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