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Phase and sensitivity of receiver coils in magnetic resonance imaging
Author(s) -
McVeigh E. R.,
Bronskill M. J.,
Henkelman R. M.
Publication year - 1986
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595967
Subject(s) - sensitivity (control systems) , phase (matter) , nuclear magnetic resonance , imaging phantom , electromagnetic coil , resonance (particle physics) , saddle , magnetic field , physics , optics , materials science , computational physics , atomic physics , electronic engineering , mathematics , engineering , mathematical optimization , quantum mechanics
Receiver coil response is a major cause of nonuniformities in magnetic resonance images. The spatial dependence of the sensitivity and phase of single‐saddle receiver coils has been investigated quantitatively by calculating the H 1 field and comparing the results with measurements of a uniform phantom. Agreement between the measurements and calculations is excellent. A method is developed which corrects for both the nonuniform sensitivity and the phase shifts introduced by receiver coils.

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