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  Optimization of the Double-Row 16-channel Transmit-only RF Array Coil for Human Brain Imaging at 9.4T.

Nikulin, A., Scheffler, K., & Avdievich, N. (2022). Optimization of the Double-Row 16-channel Transmit-only RF Array Coil for Human Brain Imaging at 9.4T. Poster presented at Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting (ISMRM 2022), London, UK.

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 Urheber:
Nikulin, A1, Autor           
Scheffler, K1, Autor           
Avdievich, N1, Autor           
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Zusammenfassung: At 9.4T, transmit-only RF array coils for human brain imaging provide mediocre transmit efficiency due to a weak loading factor, which implies low power dissipation in the tissues. In this work we aim to optimize using the full-wave simulations a dual row 16-channel transmit-only array to improve the transmit performance. For that purpose, we simulated eight different array designs containing the loops with overlapping and gaps between the rows and two configurations of loopoles. We have shown that the optimized design with the overlapped loops provides improvement ~15% in Tx-efficiency and 16.5% improvement in SAR-efficiency compared to the reference coil.

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 Datum: 2022-05
 Publikationsstatus: Online veröffentlicht
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Titel: Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting (ISMRM 2022)
Veranstaltungsort: London, UK
Start-/Enddatum: 2022-05-07 - 2022-05-12

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Titel: Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting (ISMRM 2022)
Genre der Quelle: Konferenzband
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Seiten: - Band / Heft: - Artikelnummer: 3315 Start- / Endseite: - Identifikator: -