Abstract #1325
An Optimized 8-Channel Helmet Array for Head Imaging at 6.5 mT
Cristen D LaPierre 1,2 , Lawrence L Wald 1,3 , and Matthew S Rosen 1,2
1
Department of Radiology, A.A. Martinos
Center for Biomedical Imaging, Charlestown, MA, United
States,
2
Department
of Physics, Harvard University, Cambridge, MA, United
States,
3
Harvard-MIT
Division of Health Science and Technology, Cambridge,
MA, United States
A low-field imager offers a potentially transportable
and rapidly deployable human imaging system without many
of the system requirements of typical scanners. The aim
of this study was to construct an 8-channel receive-only
helmet array for imaging the human brain. The helmet was
3D printed. Coils consisted of 4x12 cm and 4x14 cm
loops, each with 30 turns of 24 AWG copper wire.
Geometric decoupling between nearest neighbors was at
least -30 db while next nearest neighbors was -6 dB.
Future work will compare parallel imaging to incoherent
random undersampling and SENSE.
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