Abstract #4026

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

Nader Tavaf^1,2, 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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