Abstract #1793
A single channel spiral volume coil for in vivo imaging of the whole human brain at 6.5 mT
Cristen LaPierre 1,2 , Mathieu Sarracanie 1,2 , David E J Waddington 1,3 , and Matthew S Rosen 1,2
1
MGH/A.A. Martinos Center for Biomedical
Imaging, Charlestown, MA, United States,
2
Department
of Physics, Harvard University, Cambridge, MA, United
States,
3
ARC
Centre of Excellence for Engineered Quantum Systems,
School of Physics, University of Sydney, Sydney, NSW,
Australia
MRI at low magnetic field (<10 mT) presents unique
engineering challenges. Imaging coils must maximize
coverage over the volume of interest while minimizing
losses in the Johnson noise dominated regime. We
designed a spiral volume coil design for combined Tx and
Rx and optimized for human head imaging in the
transverse B0 field of our low field scanner. A 30-turn
single channel volume spiral coil designed for low field
imaging significantly outperformed our 8-channel array
coil. By minimizing losses in the coil, maximizing
filling factor and eliminating coupling issues, we were
able to obtain significantly higher SNR.
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