Phase and sensitivity of receiver coils in magnetic resonance imaging.
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 H1 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.
D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation*; D008961:Models, Structural