A novel design 20-channel head coil for cortical imaging with ultra-high resolution.
Alexander Beckett 1,2 , Liyong Chen 1,2 , An T Vu 3 , and David A Feinberg 1,2
Helens Wills Neuroscience Institute,
University of California, Berkeley, CA, United States,
MRI Technology, Sebastopol, CA, United States,
University of Minnesota, Minneapolis, MN, United States
Advances in imaging hardware and pulse sequences have
led increasingly finer resolution imaging at ultra-high
fields. We propose to use a novel half shell 20 channel
coil designed for optimized imaging in neocortical
regions superficial and closest to the coil array rather
than deeper brain regions, and demonstrate the
advantages of such a coil over a standard 32-channel
array in terms of raw signal and tSNR at 0.75 mm and
0.55 mm isotropic resolution. We demonstrate fMRI
imaging at 0.75 mm. New coil designs will allow even
higher resolutions in future cortical imaging studies
with maximal SNR.
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