Meeting Banner
Abstract #1360

Transmit field fitting at 9.4 T using analytical solutions to Maxwell's equations

Michael Stephen Poole 1 , Desmond H Y Tse 1 , Arthur W Magill 1 , and N Jon Shah 1,2

1 INM-4, Forschungszentrum Jlich, Jlich, Germany, 2 Department of Neurology, RWTH Aachen University, Aachen, Germany

Transmit B1+ fields need to be accurately acquired for B1+ shimming, kt-points homogenisation, spokes slice selection and parallel RF pulse design. We investigated the application of forcing relative B1+ maps to obey Maxwell's equations in order to provide properly scaled B1+ maps. The method was applied to B1+ maps acquired at 400 MHz in phantom and in vivo and compared to AFI-weighted B1+ and DREAM maps. Furthermore predicted CP mode and kt-points excitations were compared and found to be in good agreement in phantom. The in vivo maps compare qualitatively well with DREAM but conductivity is poorly predicted.

This abstract and the presentation materials are available to members only; a login is required.

Join Here