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Abstract #1733

A new dual-mode RF-coil array element for 7T MRI based on dipole antennas

Georgiy Solomakha1, Stanislav Glybovski2, Alexander J.E. Raaijmakers3, Constantin Simovski 4, Alexander Popugaev5, Irina Melchakova2, Pavel Belov2, and Redha Abdeddaim6

1Depatment of Nanophotonics and metamaterials, ITMO University, Saint-Petersburg, Russian Federation, 2Nanophotonics and metamaterials, ITMO University, Saint-Petersburg, Russian Federation, 3Department of Radiology, UMC Utrecht, Utrecht, Netherlands, 4Electronics and Nanoengineering, Aalto University, School of Electrical Engineering, Helsinki, Finland, 5RF and SatCom Systems, Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany, 6CNRS, Institut Fresnel, Aix-Marseille Universite, Marsel, France

In this work, we demonstrate a new RF-coil for 7 Tesla ultrahigh field MRI with two orthogonal channels to achieve better SAR and SNR of images. The first phase of the work involves numerical study of different multimode structures consisting of coupled electrical dipoles to form a radiofrequency coil that may operate both as a surface loop [1] or a single radiative electrical dipole [2] depending on the driven channel.

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