Abstract #2697
Real-time imaging of the heart and aorta at 7.0 T using a 16 channel bow tie antenna transceiver array
Celal Oezerdem 1 , Lukas Winter 1 , Andreas Graessl 1 , Katharina Paul 1 , Antje Els 1 , Dirk Voit 2 , Jens Frahm 2,3 , and Thoralf Niendorf 1,4
1
Berlin Ultra-High Field Facility (B.U.F.F.),
MDC, Berlin, Germany,
2
Biomedizinische
NMR Forschungs GmbH am Max-Planck-Institut fr
biophysikalische Chemie, Gttingen, Germany,
3
DZHK
(German Center for Cardiovascular Research), partner
site Gttingen, Germany,
4
Experimental
and Clinical Research Center, a joint cooperation
between Charit Medical Faculty and the Max Delbrueck
Center, Berlin, Germany
In conventional cardiac MR (CMR) breath-held 2D CINE
acquisitions segmented over 10-16 heartbeats are the
clinical standard for left ventricular function
assesment, making the conventional CMR constrained by
physiological constraints. Offsetting this shortcoming
provides a strong driving force for explorations into
real-time imaging of the heart. To meet this goal this
work examines the applicability of free breathing real
time imaging of the heart and the aorta For this purpose
a sixteen channel bow tie dipole transceiver array
tailored for cardiac MR at 7.0 T is employed. For
comparison traditional 2D CINE FLASH imaging of the
heart and aorta is performed. Our findings demonstrate
that the 16 channel bow tie antenna arrays supports an
extended S-I coverage using a FOV as large as 35 cm. The
spatial resolution of (1.2 x 1.2 x 6.0) mm
3
and
the frame rate of 30 frames per second fully meets the
requirements of standardized left ventricular structure
and function assessment protocols.
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