Natalia Gudino1, Jeremiah A. Heilman2, Matthew J. Riffe3, Chris A. Flask4, Mark A. Griswold4
1Biomedical Engineering , Case Center for Imaging Research, Cleveland, OH, USA; 2Physics , Case Center for Imaging Research, Cleveland, OH, USA; 3Biomedical Engineering, Case Center for Imaging Research, Cleveland, OH, USA; 4Radiology, Case Center for Imaging Research, Cleveland, OH, USA
We present preliminary results of the first, to our knowledge, an on-coil class D, current mode (CDCM) amplifier for 7T applications. High efficiency, intrinsic decoupling and the elimination of high power RF cables make this configuration promising for building a 7T array parallel RF transmission We successfully obtained an axial image of a saline phantom using a multislice FLASH sequence in a 7T Bruker Biospec scanner. We think this represents a promising advance for high field multichannel transmit arrays.
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