Magnetic resonance imaging apparatus including field-homogenizin

Details Magnetic resonance imaging apparatus including field-homogenizin Magnetic resonance imaging apparatus including field-homogenizin

1986-08-01

1988-09-13

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

335299, G01R 3320

Patent

active

047712430

ABSTRACT:
In a magnetic resonance imaging apparatus having a comparatively large measurement region, such as used for medical diagnosis, high-order contributions to the magnetic field are compensated for by the addition of pairs of rings made of a soft-magnetic material, so that the homogeneity of the magnetic field is locally increased to a high degree. This makes possible to use a substantially shorter coil while the field homogeneity in the measurement zone is still improved.

REFERENCES:
patent: 4591789 (1986-05-01), Glover et al.
patent: 4631481 (1986-12-01), Young et al.
patent: 4652826 (1987-03-01), Yamamoto et al.

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