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Abstract #4026

Developing High Channel Count Receive Arrays for Human Brain Imaging at 10.5T

Nader Tavaf1,2, Russell L. Lagore1, Steve Jungst1, Shajan Gunamony3, Jerahmie Radder1, Andrea Grant1, Edward Auerbach1, Steen Moeller1, Kamil Ugurbil1, Gregor Adriany1, and Pierre-Francois Van de Moortele1
1Center for Magnetic Resonance Research (CMRR), University of Minnesota Twin Cities, Minneapolis, MN, United States, 2Department of Biomedical Engineering, University of Minnesota Twin Cities, Minneapolis, MN, United States, 3Centre for Cognitive Neuroimaging, University of Glasgow, Glasgow, Scotland

Highly decorrelated, high channel count receive arrays are a prerequisite to capturing the signal-to-noise ratio and acceleration performance potential of ultra-high field MRI. A self-decoupled 32-channel receive array was built for human brain imaging at 10.5T. Noise correlation and signal-to-noise ratio (SNR) of the RF coil were measured in phantom experiments at 10.5T. SNR was compared to a commercial 32-channel receiver array at 7T. Noise correlation matrices demonstrated effective decoupling of receive elements. Experimental SNR measurements demonstrated on average 60% higher overall SNR at 10.5T compared to 7T.

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