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Development of a phased‐array coil for the lower extremities
Author(s) -
Alley Marcus T.,
Grist Thomas M.,
Swan J. Shan
Publication year - 1995
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.1910340218
Subject(s) - electromagnetic coil , phased array , image quality , radiofrequency coil , signal to noise ratio (imaging) , signal (programming language) , noise (video) , biomedical engineering , beam (structure) , acoustics , quality (philosophy) , optics , materials science , computer science , nuclear magnetic resonance , physics , image (mathematics) , computer vision , medicine , telecommunications , quantum mechanics , antenna (radio) , programming language
Abstract A phased‐array coil was developed to facilitate imaging the vasculature of the lower extremities. The array consists of four surface coils placed in a Plexiglas “I‐beam” frame that are configured to allow bilateral studies with up to a 40‐cm field of view (FOV). Data from phantoms indicate an increase in signal‐to‐noise ratio (SNR) in the regions of interest by an average factor of 2.8 ± 0.9 over that of the body coil. Preliminary in vivo data have also been obtained from n = 8 subjects and demonstrate significant improvements in image quality. The coil design described here should lead to reduced scan times through the ability to image both legs simultaneously with less need for patient repositioning.