Abstract
In this work we present a systematic evaluation of the potential of combining dielectric materials with an array of electric dipoles for MRI. Design parameters include the permittivity and length of a dielectric sleeve, as well as the dipole length and position of the tuning inductors. Results show that the combined approach improves transmit efficiency and SNR by ~10 to 15 % compared to an optimized dipole array without dielectric sleeve. The resulting induced current densities reflect an improved correspondence with the ideal current pattern, which explains the gains in performance.
Original language | English |
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Title of host publication | Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA '17) |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1220-1223 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-5090-4451-1 |
DOIs | |
Publication status | Published - 2017 |
Event | ICEAA 2017: 19th International Conference on Electromagnetics in Advanced Applications - Verona, Italy Duration: 11 Sept 2017 → 15 Sept 2017 Conference number: 19 |
Conference
Conference | ICEAA 2017 |
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Abbreviated title | ICEAA '17 |
Country/Territory | Italy |
City | Verona |
Period | 11/09/17 → 15/09/17 |
Keywords
- Dielectrics
- Signal to noise ratio
- Inductors
- Radio frequency
- Sensitivity
- Permittivity