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Abstract #1315

A 64-Channel Cardiac Receive-Only Phased Array Coil for Cardiac Imaging at 3T

Mark Schuppert 1 , Boris Keil 2 , Bastien Guerin 2 , Stefan Fischer 1 , Robert Rehner 3 , Lawrence L. Wald 2,4 , and Laura M. Schreiber 1

1 Section of Medical Physics, Department of Radiology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany, 2 A.A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, United States, 3 Siemens AG, Healthcare Sector, Erlangen, Germany, 4 Harvard Medical School, Boston, MA, United States

A 64-channel cardiac receive-only phased array prototype coil was built. We show its use for accelerated imaging (tGRAPPA, acceleration factors R = 3, 5, 7, and 8) in comparison to a 38-channel commercial coil setup (Body 18/Spine 32 Tim coils). Compared to the commercial coil setup, the achieved center SNR with the 64-channel coil was 6% less using optimally combined complex data in phantom measurements. Nonetheless, at R = 7 mean noise amplification in phantom measurements was 50% less with the new coil. In vivo image quality was superior with the 64-channel cardiac phased array coil at R=5 and R=7.

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