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Abstract #0307

7 T Cardiac Imaging with Array of Radiative Antennas Compared to Loop Coil Array

MAGNA25Alexander J.E. Raaijmakers1, Maarten J. Versluis2, Sebastian A. Aussenhofer2, Hamza El Aidi1, Peter Luijten1, Tim Leiner1, Cornelis A.T. van den Berg1, Andrew Webb2

1Imaging Division, UMC Utrecht, Utrecht, Netherlands; 2J.C. Gorter Institute, LUMC, Leiden, Netherlands

Recently, a novel coil array of radiative antennas was introduced for prostate imaging. In this study, the same array is used for cardiac imaging at 7 Tesla. An additional coil array consisting of large loop coils has been constructed for comparison. Both arrays are characterized by FDTD simulations. These show that the array of radiative antennas has much higher B1+ and B1- while the array of large loop coils has much lower SAR levels. Cine MR cardiac images have been obtained, showing higher SNR for the array of radiative antennas. With this array the right coronary artery was successfully depicted.