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.