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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