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Abstract #0116

Left Coronary Artery Imaging at 7T: Initial Results using Multiple B1+ Shimming Algorithms & Targets

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.