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.