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Abstract #3895

A Dedicated 64-Channel Cardiac Receive-Only Phased Array Coil: Initial Experience

Mark Schuppert 1 , Michaela Schmidt 2 , Karl Friedrich Kreitner 3 , Boris Keil 4 , Bastien Guerin 4 , Stefan Fischer 1 , Joerg Rothard 2 , Lawrence L. Wald 4,5 , and Laura M. Schreiber 1

1 Section of Medical Physics, Department of Radiology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany, 2 Siemens AG, Healthcare Sector, Erlangen, Germany, 3 Department of Radiology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany, 4 A.A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, United States, 5 Harvard Medical School, Boston, MA, United States

A new 64-channel cardiac phased array prototype coil was compared to a commercial 30-channel coil setup (Body 18/Spine 32 Tim coils) to assess imaging performance in healthy volunteers. Accelerated cine cardiac MRI (tGRAPPA, acceleration factors R = 3, 5, 7, and 8) was performed in short-axis and four-chamber views. MR images were scored by an independent radiologist for image quality in terms of diagnostic value (1 = Excellent, 2 = Good, 3 = Satisfactory, 4 = Fair, 5 = Fail). The 64-channel coil outperformed the commercial setup at R = 5 and R = 7, resulting in lower score values.

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