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Abstract #1056

A 32-Channel 3D-Printed-Loop Receive Array with Direct High-Impedance Preamplifiers for Brain Imaging at 7T

Paul-François Gapais1,2, Michel Luong3, Eric Giacomini1, Alexandre Vignaud1, François Nizery4, Gabriel Maitre4, Sajad Hosseinnezhadian2, Marc Dubois2, Elodie Georget2, and Alexis Amadon1
1BAOBAB, Université Paris-Saclay/CEA/Joliot/NeuroSpin, GIF-SUR-YVETTE, France, 2Multiwave Imaging SAS, Marseille, France, Metropolitan, 3DACM, Université Paris-Saclay/CEA/IRFU, GIF-SUR-YVETTE, France, 4LCAP, CEA/DRF/IRFU/DIS, GIF-SUR-YVETTE, France

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & Systems, CoilA fully customized 32-channel receive array has been designed, fabricated and evaluated using MR experiments at 7T. The design is made of non-geometrically decoupled loops arranged in two layers of large and small loops. Copper loops are 3D printed from additive manufacturing, preamplifiers are home-built, and an easy implementation procedure is proposed. Receive array performances shows SNR comparable to the Nova Medical reference coil while being superior at the top of the coil and for parallel imaging accelerated in the vertical direction.

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Keywords