G. Shajan1, Jens Hoffmann1, Rolf Pohmann1
1Magnetic Resonance Center,
Max Planck Institute for Biological Cybernetics, Tuebingen, Baden
Even more than at 7 T, constructive and destructive interferences cause strong inhomogeneities of the B1 field produced by a volume coil, causing shading over large parts of the image. In this study at 9.4T, we present initial results from a 16-channel actively detunable transmit array combined with a 15 element receive only array. In addition to the high sensitivity offered by the receive array, transmit field inhomogeneities can be significantly reduced by RF shimming methods for whole brain coverage at 9.4T.