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US 4,875,485 AGranted
Magnetic resonance system
AssigneeKabushiki Kaisha Toshiba
InventorKinya Matsutani
Life of this patent
Estimating the term…
Abstract
A magnetic resonance system having a compact magnet configuration for generating a static magnetic field. The magnet and platform carrying the patient to be examined are so arranged as to be arbitrarily moved relative to one another. The resulting small size field-homogeneous space may be freely moved to various portions of the patient body to permit a wide range of whole body measurements.
Claims10
A magnetic resonance system comprising:
- a pair of magnets for generating a static field;
- a plurality of gradient coils for generating plural gradient fields to be superimposed on said static field;
- an RF coil for stimulating nuclei and for measuring field changes caused by said stimulation;
- a platform for holding a body to be examined by placing said body thereon, within said static field;
- driving means for automatically varying the position of each magnet independently and for varying a positional relationship between said magnets and said platform such that a field-homogeneous space can be established at an arbitrary position of said body to be examined;
- and
- controlling means for automatically controlling said driving means, said gradient coils and said RF coil for measuring at least one of spin density distributions, relaxation time constant distributions and spectra, and for storing said measurements together with associated positional information corresponding to the respective portions within said body to be examined, and for providing cross-sectional images by synthesizing said stored data.
4 more elements
A magnetic resonance system comprising:
- an upright support column;
- a pair of support arms which are slidably attached to said support column;
- magnet means consisting essentially of a pair of magnets for generating a static field which are attached on said support arms;
- a plurality of gradient coils for generating plural gradient fields to be superimposed on said static field;
- an RF coil for stimulating nuclei and for measuring field changes caused by said stimulation;
- a platform for holding a body to be examined by placing said body thereon, within said static field;
- driving means for automatically varying the position of each magnet independently and for varying a positional relationship between said magnets and said platform such that a field-homogeneous space can be established at an arbitrary position of said body to be examined;
- and
- controlling means for automatically controlling said driving means, said gradient coils and said RF coil for measuring at least one of spin density distributions, relaxation time constant distributions and spectra, and for storing said measurements together with associated positional information corresponding to the respective portions within said body to be examined, and for providing cross-sectional images by synthesizing said stored data.
6 more elements
Dependencies are inferred from the claim text.