| Autor: |
Alena V. Shchelokova, Egor I. Kretov, Alexey P. Slobozhanyuk |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials). |
| DOI: |
10.1109/metamaterials.2018.8534106 |
| Popis: |
Magnetic resonance image quality directly depends on the signal-to-noise ratio provided by the receive coil. It was recently shown that wire metasurface can enhance the signal-to-noise ratio of the commercial scanner due to the spatial redistribution of the radiofrequency electromagnetic field through the resonant excitation of a wire metasurface eigenmode. In this work, we experimentally investigate the impact of this eigenmode on receive sensitivity enhancement of the 1.5 T birdcage coil. We proof that due to the certain spatial profile of the metasurface eigenmode, signal-to-noise ratio enhancement directly depends on the position and dimensions of the studied object on the metasurface. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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