Method and apparatus for MRI

Details Method and apparatus for MRI Method and apparatus for MRI

1989-07-03

1990-07-03

Williams, Hezron E.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01R 3320

Patent

active

049394622

ABSTRACT:
In order to narrow the dynamic range of an NMR signal and to provide MRI of low cost and high image quality without inducing the distortions of an image other than distortion of phase which can be corrected or the degradations of the measurement accuracies of various parameters, a coil for generating an inhomogeneous magnetic field which varies slowly within region to-be-imaged is added to a coil for generating a static magnetic field of high homogeneity, and current to flow through the former coil is changed so as to control the inhomogeneous magnetic field.

REFERENCES:
patent: 4720679 (1988-01-01), Patrick et al.
patent: 4740753 (1988-04-01), Glover et al.

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