MRI apparatus, NMR analyzer, and gantry

Details MRI apparatus, NMR analyzer, and gantry MRI apparatus, NMR analyzer, and gantry

2008-01-31

2009-06-02

Shrivastav, Brij B (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

C324S318000

Reexamination Certificate

active

07541812

ABSTRACT:
A magnetic resonance imaging apparatus includes a static magnetic field generating unit, a main coil (gradient magnetic coil), a radio frequency coil, and a shimming structure unit. The shimming structure unit includes first iron shims and second iron shims. The first iron shims are disposed between the main coil and a shield coil of the gradient magnetic coil and disposed in a central axial center of the static magnetic field generating unit. The second iron shims are disposed on an outer side of the main coil and the shield coil and disposed on a central axial end of the static magnetic field generating unit.

REFERENCES:
patent: 5532597 (1996-07-01), McGinley et al.
patent: 2008/0169813 (2008-07-01), Yamashita et al.
patent: 8-299304 (1996-11-01), None
patent: 2006-218141 (2006-08-01), None

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