A 128‐channel receive array with enhanced signal‐to‐noise ratio performance for 10.5T brain imaging
Magnetic Resonance in Medicine2025Vol. 93(6), pp. 2680–2698
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Russell Lagore, Alireza Sadeghi‐Tarakameh, Andrea Grant, Matt Waks, Edward J. Auerbach, Steve Jungst, Lance DelaBarre, Steen Moeller, Yiğitcan Eryaman, Riccardo Lattanzi, Ilias I. Giannakopoulos, Luca Vizioli, Essa Yacoub, Simon Schmidt, Gregory J. Metzger, Xiaoping Wu, Gregor Adriany, Kâmil Uǧurbil
Abstract
Counterintuitive to expectations based on magnetic fields less than or equal to 7 T, the higher channel counts provided SNR gains centrally, capturing about 80% uiSNR. The fraction of uiSNR achieved centrally in 64Rx, 80Rx, and 128Rx arrays suggested that a plateau was being reached at 80%. At this plateau, B0-dependent SNR gains for 10.5 T relative to 7 T were approximately linear to quadratic for the periphery and the center, respectively.
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