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Switched array coils
Author(s) -
Requardt H.,
Offermann J.,
Erhard P.
Publication year - 1990
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910130306
Subject(s) - electromagnetic coil , path (computing) , computer science , conductor , acoustics , signal (programming language) , coil noise , image quality , radiofrequency coil , quality (philosophy) , electrical engineering , electronic engineering , physics , image (mathematics) , materials science , engineering , rogowski coil , artificial intelligence , quantum mechanics , composite material , programming language
Switched array coils (SACs) are a useful tool in local coil imaging since they allow in a user‐friendly manner one to make the best choice in the trade‐off between field of view and signal‐to‐noise ratio. This is done by selecting the current path within a conductor array equipped with suitable switches. Since the switching can be controlled by the system, this allows changing of the coil dimensions within multislice sequences. Thus image quality can be improved due to smaller coil dimensions for a given slice and a larger area can be covered by electronically shifting this sensitive area. The principle can be applied to surface–as Well as volume–coil designs. © 1990 Academic Press, Inc.