Jan Paska1, David O. Brunner2, Juerg Froehlich1, Klaas P. Pruessmann2
1Laboratory for Electromagnetic Fields & Microwave Electronics, ETH Zurich, Zurich, Switzerland; 2Institute for Biomedical Engineering, University & ETH Zurich, Zurich, Switzerland
The travelling wave concept was recently extended to multiple channels showing promising results in phantoms. For in vivo imaging a reliable SAR evaluation is necessary considering all uncertainties particular to this RF system. Methods were developed to calculate an input power limit, such that the local SAR limits are not exceeded, in any case of operation and within the uncertainties given.