Liebig, Thorsten; Erni, Daniel; Rennings, Andreas; Koster, Norbert H. L.; Fröhlich, Jürg:
MetaBore - A fully adaptive RF field control scheme based on conformal metamaterial ring antennas for high-field traveling-wave MRI
In: ESMRMB Congress 2011; 28th Annual Scientific Meeting. October 6-8, 2011, Leipzig/DE; Book of Abstracts (MAGMA vol. 24, Supplement 1) - Berlin (u.a.): Springer, 2011, S. 37 - 38
Buchaufsatz/Kapitel in Sammelwerk / Fach: Elektrotechnik
Fakultät für Ingenieurwissenschaften
Titel:
MetaBore - A fully adaptive RF field control scheme based on conformal metamaterial ring antennas for high-field traveling-wave MRI
Autor(in):
Liebig, Thorsten im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Erni, Daniel im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Rennings, Andreas im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Koster, Norbert H. L. im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Fröhlich, Jürg
Erscheinungsjahr:
2011
Erschienen in:
ESMRMB Congress 2011; 28th Annual Scientific Meeting. October 6-8, 2011, Leipzig/DE; Book of Abstracts (MAGMA vol. 24, Supplement 1) - Berlin (u.a.): Springer, 2011, S. 37 - 38
Link URL:

Abstract:

In their seminal publication Brunner et al. [1]have pioneered the distribution of the RF B1-field using the propagation of traveling waves within the bore of the 7 T MRI scanner. A common feature of most traveling-wave approaches is a waveguide mode excitation that relies on a closed-end antenna system at the bore end. We therefore propose an adaptive RF antenna system for the excitation (and control) of the fundamental circular waveguide mode (TE11), consisting of multiple «flat» composite right-/left-handed (CRLH) metamaterial ring antennas [cf. Fig.1(a)]that fully conforms to the inner surface of the MRI bore [2], and therefore yields no drawbacks in terms of patient’s comfort.