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Abstract #1445

Preliminary study of a receive Multi-Loop Coil (MLC) array for 7T brain MRI

Clément Thibault1,2, Paul-François Gapais2,3, Camille Dubuc1,4, Marie Poirier-Quinot1, Alexis Amadon2, Alexandre Vignaud2, and Jean-Christophe GINEFRI1
1Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Orsay, France, Metropolitan, 2Université Paris-Saclay, CEA, Joliot, NeuroSpin, BAOBAB, Gif-sur-Yvette, France, Metropolitan, 3Multiwave Imaging SAS, Marseille, France, Metropolitan, 4Thales Research & Technology, Palaiseau, France, Metropolitan

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & Systems

Motivation: The use of MLCs has shown the potential to improve the SNR at short distance as compared to an equivalent SLC.

Goal(s): Evaluation of the performances of a 8-channels MLC-array for head imaging at 7T.

Approach: Electromagnetic simulation was used to evaluate and compare the SNR, noise-covariance matrix and g-maps obtained with the MLC-array and with an equivalent array of SLC.

Results: As compared to the SLC-array, the MLC-array achieves an increased SNR in a relatively large peripheral ring and a reduced maximum g-factor.

Impact: Array of MLC represents a valuable strategy for array developpement at high field that can be employed to improve the SNR or reduce the number of channels.

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Keywords