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Meeting Abstract

Novel Dipole/Loop Combined Arrays for Human Whole Brain Imaging at 7 T

MPS-Authors
/persons/resource/persons133464

Avdievich,  NI
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons260961

Nikulin,  AV
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons215122

Ruhm,  L
Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84187

Scheffler,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

External Resource

https://submissions.mirasmart.com/ISMRM2022/itinerary/ConferenceMatrixEventDetail.aspx?id=211
(Abstract)

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Citation

Avdievich, N., Nikulin, A., Ruhm, L., Magill, A., Henning, A., & Scheffler, K. (2022). Novel Dipole/Loop Combined Arrays for Human Whole Brain Imaging at 7 T. In Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting (ISMRM 2022).


Cite as: https://hdl.handle.net/21.11116/0000-000A-5C20-B
Abstract
The advancement of clinical applications of 7T MRI depends heavily on the development of new RF coil designs. Recent works based on Ultimate Intrinsic SNR theory demonstrated that an optimal central SNR at 7T requires combining surface loops with dipole antennas. In this work, we developed and evaluated two novel 32-element 7T human head loop/dipole array designs. Both coils demonstrated superior Tx-efficiency, longitudinal coverage, and SNR in comparison to widely used commercial array coil. While the transceiver (TxRx)-dipole/receive(Rx)-loop array demonstrated best SNR, the TxRx-loop/Rx-dipole array showed the best Tx-efficiency. In addition, double-row TxRx-loop/Rx-dipole array provides 3D RF shimming capability.