Characterization of coupling in planar array coils with arbitrary element geometries

Author

Wright, Steven M. ; Porter, Jay R. ; Boyer, Jeffrey ; Bankson, James

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

fYear

1994

fDate

3-6 Nov 1994

Firstpage

570

Abstract

A method is presented which rapidly characterizes the mutual impedance between elements in array coils for MR imaging as a function of offset distances between elements. These “coupling surfaces” allow the designer to quickly determine the overlap distances which minimize coupling between array elements. The method allows arbitrary element geometries and a layered, planar media. Additionally, because the Green´s functions and current distributions are stored in Fourier space, the transverse field distributions are easily obtained, allowing the weighting coefficients form image combination to be determined

Keywords

Green´s function methods; biomedical NMR; biomedical equipment; coils; current distribution; Fourier space; Green´s functions; arbitrary element geometries; coupling characterization; coupling surfaces; current distribution; image combination; layered planar media; magnetic resonance imaging; medical diagnostic imaging; mutual impedance; overlap distances; planar array coils; transverse field distributions; weighting coefficients; Coils; Current distribution; Geometry; Green´s function methods; Magnetic fields; Magnetic noise; Mutual coupling; Planar arrays; Surface impedance; Surface resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE

Conference_Location

Baltimore, MD

Print_ISBN

0-7803-2050-6

Type

conf

DOI

10.1109/IEMBS.1994.411898

Filename

411898