Design of a shielded coil element of a matrix gradient coil
Feng Jia 1 , Sebastian Littin 1 , Kelvin Layton 1 , Stefan Kroboth 1 , Huijun Yu 1 , Jrgen Hennig 1 , and Maxim Zaitsev 1
Dept. of Radiology, University Medical
Center Freiburg, Freiburg, BW, Germany
Spatial encoding with nonlinear magnetic fields (SEMs)
has raised increasing interest in the past few years.
Matrix coils consisted of multiple coil elements appear
to offer a high flexibility in generating customized
SEMs and are particularly promising for localized high
resolution imaging applications such as PatLoc .
However, existing coil elements of those matrix coils
cannot lead to an optimal performance according to the
measure of matrix coils. In this work, an optimization
problem is formulated that results in optimal designs of
novel, high-performance coil elements of a matrix coil.
Two parameters are proposed to assess the performance of
different coil elements. The results are tested and the
analysis reveals novel features of coil element designs.
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