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Abstract #0326

Design, Evaluation & Application of a Sixteen-Channel Transmit/Receive Surface Coil Array for Cardiac MRI at 7T

Christof Thalhammer1,2, Wolfgang Renz1,3, Harald Pfeiffer4, Jan Rieger1, Lukas Winter1, Fabian Hezel1, Frank Seifert4, Werner Hoffmann4, Reiner Seemann4, Thoralf Niendorf1,5

1Berlin Ultrahigh Field Facility, Max-Delbrueck Center for Molecular Medicine, Berlin, Germany; 2University of Regensburg, Regensburg, Germany; 3Siemens Healthcare, Erlangen, Germany; 4Physikalisch-Technische Bundesanstalt (PTB), Braunschweig & Berlin, Germany; 5Experimental & Clinical Research Center (ECRC), Charit Campus Buch, Berlin, Germany

Ultrahigh field cardiac MR is challenged by non-uniform B1+distributions. A two-dimensional 16-channel transceive surface coil array based on loop elements is proposed to improve B1+homogeneity and parallel imaging for cardiac MR at 7 T. The RF characteristics were satisfying without the need for subject-specific tuning and matching. MR images were acquired showing a rather uniform intensity over the whole cardiac region and a high myocardium/blood contrast without subject-specific B1+shimming.