%0 Journal Article
%A Avdievich, Nikolai I
%A Solomakha, Georgiy
%A Ruhm, Loreen
%A Nikulin, Anton V
%A Magill, Arthur
%A Scheffler, Klaus
%T Folded-end dipole transceiver array for human whole-brain imaging at 7 T.
%J NMR in biomedicine
%V 12
%@ 1099-1492
%C New York, NY
%I Wiley
%M DKFZ-2021-01088
%P e4541
%D 2021
%Z 2021 May 12;e4541
%X The advancement of clinical applications of ultrahigh field (UHF) MRI depends heavily on advances in technology, including the development of new radiofrequency (RF) coil designs. Currently, the number of commercially available 7 T head RF coils is rather limited, implying a need to develop novel RF head coil designs that offer superior transmit and receive performance. RF coils to be used for clinical applications must be robust and reliable. In particular, for transmit arrays, if a transmit channel fails the local specific absorption rate may increase, significantly increasing local tissue heating. Recently, dipole antennas have been proposed and used to design UHF head transmit and receive arrays. The dipole provides a unique simplicity while offering comparable transmit efficiency and signal-to-noise ratio with the conventional loop design. Recently, we developed a novel array design in our laboratory using a folded-end dipole antenna. In this work, we developed, constructed and evaluated an eight-element transceiver bent folded-end dipole array for human head imaging at 7 T. Driven in the quadrature circularly polarized mode, the array demonstrated more than 20
%K array optimization (Other)
%K decoupling (Other)
%K folded-end dipole (Other)
%K human head imaging (Other)
%K transceiver array (Other)
%K ultrahigh field MRI (Other)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:33978270
%R 10.1002/nbm.4541
%U https://inrepo02.dkfz.de/record/168837