Local SAR Control for Parallel Transmit MRI Using Multiple Patient Models

Hanno Homann¹, Inagmar Graesslin¹, Ulrich Katscher¹, Peter Vernickel¹, Kay Nehrke¹, Peter Brnert¹

Parallel transmission enables control of the RF transmit field in time and space. Hence, the B1-field and the SAR distribution can be influenced. To evaluate the potential for SAR reduction, numerical RF field simulations were carried out for an 8-channel Tx body coil and 9 volunteer body models.