A metamaterial based dual-resonant coil element for combined sodium/hydrogen MRI at 7 Tesla-Reference-Cited by-同舟云学术

A metamaterial based dual-resonant coil element for combined sodium/hydrogen MRI at 7 Tesla

Published:2016-11-24 Issue:1 Volume:84 Page:2-12
ISSN:0171-8096
Container-title:tm - Technisches Messen
language:en
Short-container-title:

Author:

Svejda Jan Taro¹,Rennings Andreas¹,Erni Daniel¹

Affiliation:

1. General and Theoreticel Electrical Engineering (ATE), Faculty of Engineering, University of Duisburg-Essen, and CENIDE – Center for Nanointegration Duisburg-Essen, D-47048 Duisburg Germany

Abstract

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 quarter-wavelength current and electromagnetic (EM) field distributions at the two distinct Larmor frequencies of 23Na- and 1H-nuclei at 7 T magnetic flux density. The functionality of a manufactured prototype is validated through near-field measurements that are compared with finite-difference time-domain (FDTD) simulations. Finally, results of a first successful MRI experiment are presented for a canister phantom including ping-pong ball insets filled with different liquids of high sodium concentrations.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Instrumentation

Link

https://www.degruyter.com/document/doi/10.1515/teme-2016-0039/pdf

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1. The state-of-the-art and emerging design approaches of double-tuned RF coils for X-nuclei, brain MR imaging and spectroscopy: A review;Magnetic Resonance Imaging;2020-10

2. Compact Metamaterial-based Coil Element for Combined 1H/23Na MRI at 7T;Journal of Physics: Conference Series;2020-03-01

3. Multi-functional RF coils for ultra-high field MRI based on 1D/2D electromagnetic metamaterials;Journal of Physics: Conference Series;2018-09