Towards massively parallel multi-transmit for body imaging at 7 T
Bart R. Steensma1, J. Nuno Teixeira1, Ingmar Voogt1, Luijten R. Peter1, Dennis W.J. Klomp1, van den Berg A.T. Nico2, and Alexander J.E. Raaijmakers1,3
1Division Imaging, Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands, 2Division Imaging, Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands, 3Biomedical Image Analysis, Eindhoven University of Technology, Eindhoven, Netherlands
A simulation study was done to assess optimal transmit setups for massively parallel (up to 32 channels) transmit body imaging at 7 tesla. Moving from 8 to 24 and 32 dipole setups increases transmit efficiency on a pelvis-shaped phantom. Our current multitransmit system was adapted to obtain 24 semi-phase controlled channels. A 24 channel transmit setup consisting of small dipoles was constructed and tested on a male volunteer.
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