Hanno Homann1, Peter Brnert2, Olaf Dssel1, Ingmar Graesslin2
1Institute of Biomedical
Engineering, Karlsruhe Institute of Technology,
The specific absorption rate (SAR) depends on the individual patient anatomy. Hence, it is required to calculate the SAR for different body models to obtain a robust estimation of the worst-case SAR. In parallel transmit MRI, the SAR also depends on the multi-channel RF waveform such that real-time calculations of the SAR are required. In this study, a fast method for local SAR estimation in multiple body models is proposed. In this approach, the calculation time is almost independent of the number of models used. This allows using a high number of different models for robust SAR estimation.