Wolfgang Driesel1, Roland Mller1, Andreas Schfer1, Markus Streicher1, Carsten Kgler1, Toralf Mildner1, Harald E. Mller1
1Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
At frequencies above 150 MHz, shielded loop coils become impractical because capacitive tuning is no longer possible. The integration of a floating secondary shield allows adaptation of this design to higher magnetic fields. Simulations and initial experiments suggest that a double-shielded dual-loop coil may be used for continuous arterial spin labeling at the human neck at 7 T within legal SAR limits.