Matthias
Alexander Dieringer1,2, Wolfgang Renz, 1,3, Tomasz
Lindel, 1,4, Frank Seifert, 1,4, Tobias Frauenrath1,
Helmar Waiczies, 1,4, Florian von Knobelsdorff-Brenkhoff5,
Davide Santoro1, Werner Hoffmann4, Bernd Ittermann,
1,4, Jeanette Schulz-Menger2,5, Thoralf Niendorf1,2
1Berlin Ultrahigh Field Facility,
Max-Delbrueck-Center for Molecular Medicine, Berlin, Germany; 2Experimental
and Clinical Research Center (ECRC), Charit Campus Buch,
Humboldt-University, Berlin, Germany; 3Siemens Healthcare,
Erlangen, Germany; 4Physikalisch-Technische Bundesanstalt (PTB),
Berlin, Germany; 5CMR-Unit Charit Campus Buch, Berlin, Germany
Practical
impediments of ultra high field cardiovascular MR (CVMR) can be catalogued in
exacerbated magnetic field and radio frequency (RF) inhomogeneities,
susceptibility and off-resonance effects, conductive and dielectric effects
in tissue, and RF power deposition constraints, which all bear the potential
to spoil the benefit of CVMR at 7T. Therefore, a four element cardiac
transceive surface coil array was developed. Cardiac imaging provided
clinically acceptable signal homogeneity with an excellent blood myocardium
contrast. Subtle anatomic structures, such as pericardium, mitral and
tricuspid valves and their apparatus, papillary muscles, and trabecles were
accurately delineated.