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Simultaneous image acquisition from the Head (or body) coil and a surface coil
Author(s) -
Hyde James S.,
Froncisz W.,
Jesmanowicz A.,
Kneeland J. B.
Publication year - 1988
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.1910060212
Subject(s) - electromagnetic coil , head (geology) , nuclear magnetic resonance , acoustics , signal (programming language) , sensitivity (control systems) , materials science , surface (topology) , magnetic resonance imaging , physics , optics , computer science , mathematics , geometry , engineering , electronic engineering , geology , medicine , quantum mechanics , geomorphology , radiology , programming language
Any number of coils can in principle be used simultaneously and independently in magnetic resonance imaging if the mutual inductances are sufficiently small. Surface coils and head or body coils have equal sensitivity at some crossover depth of the order of 6 to 10 cm. Using a 7.5‐cm‐diameter surface coil that was intrinsically isolated from the head coil, images were acquired simultaneously from both coils and combined to improve the signal‐to‐noise ratio at 6 cm depth by 2 1/2 . A similar experiment with the body coil showed 2 1/2 improvement at about 8 cm depth. © 1988 Academic Press, Inc.