Uncertainties of Local SAR Determination in Parallel Transmission MRI

Keywords

actual aiming allowing already alterations amplitudes anatomical applications applied arises array assumptions axial beyond biomedical calculation calibrated careful cells central challenging channel chosen circuit clear clearly coil complex component components comprehensive compression computational conditions controlling counting coupler couplers cross crucial density derived determination determining dimensionless directional directly distributions driving duke efforts eigenvalue eigenvalues either electromagnetic enough equidistant even excitation family field forward foundation frank give global head hence human improbable in vivo internal intrinsic introduced landmarks larger largest life like limitations loaded local loop loss losses mass match matching materials matrices matrix measured mesh million model models modified motivation needed nevertheless observation offset often parallel patient phantom position power predicted prediction priori prone proportional randomly rapid real realistic receive reduce resistor respect safety scatter shielded simulation simulations slice slices sound sources statistically stay steady subject task transmission transmit transmitter tune type upon validation variability variations vector vectors virtual visible voltage voltages whether worst