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Abstract #0436

Compact Self Grounded Bow Tie Antenna Resonator for Cardiac MRI at 7.0 Tesla

Thomas Wilhelm Eigentler1, Laura Boehmert1, Andre Kuehne2, Daniel Wenz1, Eva Oberacker1, Haopeng Han1, Lukas Winter3, and Thoralf Niendorf1,2,4

1Berlin Ultrahigh Field Facility, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany, 2MRI.TOOLS GmbH, Berlin, Germany, 3Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany, 4Experimental and Clinical Research Center (ECRC), a joint cooperation between the Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Berlin, Germany

A compact dielectric resonator antenna array was developed for cardiovascular MRI at 7.0T MRI. The antenna building block is based on the concept of a self-grounded bow-tie (SGBT) antenna placed inside a resonator cavity filled with deuterium oxide. This approach ensures light-weight design and affords high-density RF arrays, which constitutes a major advantage over current state-of-the-art electric dipole configurations. The proposed high-density SGBT transceiver array provides ample parallel imaging and real time imaging capabilities. It contributes to the technological basis for the future clinical assessment of parallel transmit techniques designed for ultrahigh field cardiac MR.

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