Method and apparatus for magnetic resonance imaging

Details Method and apparatus for magnetic resonance imaging Method and apparatus for magnetic resonance imaging

2006-03-28

2006-03-28

Arana, Louis (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

C324S320000

Reexamination Certificate

active

07019525

ABSTRACT:
A magnetic field generator for producing a homogenous magnetic field region. The magnetic field generator comprises: a plurality of main magnet coils arranged in a cylindrical fashion; a plurality of shielding coils arranged in a cylindrical fashion, and located radially outward of the plurality of magnets; and wherein the main magnet coils and shielding coils are configured to shape a magnetic field which comprises at least one low fringe field region when in operation. A method for designing an MRI system that produces a low fringe field region. The method comprises: defining a solution space; defining a field of view, a center field and homogeneity requirements; defining fringe field requirements; and running an optimization algorithm to determine coil positions.

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