Abstract #1090
16-Channel Hybrid Dipole+Loop RF Applicator for Thermal MR at 7.0 Tesla
Nandita Saha1, Andre Kuehne2,3, Thomas Wilhelm Eigentler1,4, and Thoralf Niendorf1,2,5
1Berlin Ultrahigh Field Facility (B.U.F.F.), Max-Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany, 2MRI.TOOLS GmbH, Berlin, Germany, 3MT MedTech Engineering GmbH, Berlin, Germany, 4Technische Universität Berlin, Chair of Medical Engineering, Berlin, Germany, 5Experimental and Clinical Research Center (ECRC), a joint cooperation between the Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
Synopsis
This work proposes the concept of a loop and SGBT dipole antenna array for diagnostic proton (1H) imaging and thermal intervention at 7.0T MRI. Dipole antennas are the general choice for RF induced heating application as they can be made to operate over a broadband frequency range, have symmetric B1+ field and provide a central E-field distribution. Adding the inherently orthogonal and thus well-decoupled electromagnetic (EM) fields of loops to the dipoles provides additional degrees of freedom for RF shimming and thermal intervention not afforded by only using dipole antennas.
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