Gregory John Metzger1,
Lance Delabarre1, Xiaoming Bi2, Saurabh Shah2,
Sven Zuehlsdorff2, Tommy Vaughan1, Kamil Ugurbil1,
Pierre-Francois van de Moortele1
1Center for
Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, USA; 2Siemens
Healthcare, Cardiovascular MR R&D, Chicago, IL, USA
Imaging of the left coronary artery was achieved with high contrast at 7T. The challenges of low peak B1+ and poor transmit homogeneity were overcome by RF pulse and region specific B1+ shimming strategies making us of a 16-channel transceiver TEM stripline array driven by 16, 1 kW amplifiers with independent phase and gain control.