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- Title
A metamaterial based dual-resonant coil element for combined sodium/hydrogen MRI at 7 Tesla.
- Authors
Svejda, Jan Taro; Rennings, Andreas; Erni, Daniel
- Abstract
A single coil element based on a composite right/left-handed (CRLH) metamaterial transmission line for combined sodium and hydrogen MRI is presented. It provides the particular feature of equal quarterwavelength current and electromagnetic (EM) field distributions at the two distinct Larmor frequencies of 23Na-and ¹H-nuclei at 7T magnetic flux density. The functionality of a manufactured prototype is validated through near-field measurements that are compared with finitedifference time-domain (FDTD) simulations. Finally, results of a first successfulMRI experiment are presented for a canister phantom including ping-pong ball insets filled with different liquids of high sodium concentrations.
- Subjects
TESLA coils; METAMATERIALS; MAGNETIC resonance imaging; FINITE difference time domain method; SODIUM; HYDROGEN
- Publication
Technisches Messen, 2017, Vol 84, Issue 1, p2
- ISSN
0171-8096
- Publication type
Article
- DOI
10.1515/teme-2016-0039