Magnetic resonance imaging apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorHiromitsu Takamori
Life of this patent
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Abstract
A magnetic resonance imaging apparatus includes a gantry with a gradient coil which applies a gradient magnetic field to a subject in a static magnetic field, a bed which slides a top board in a longitudinal direction of the top board with the subject placed thereon, a high-frequency coil which applies the gradient magnetic field and a high-frequency pulse signal to the subject, and detects a magnetic resonance signal emitted from the subject, and a damping member which damps noise which occurs when the gradient coil is driven, or a support member which supports the gradient coil, the damping member or the support member providing an asymmetrical structure with respect to a plane perpendicular to the longitudinal direction.
Claims10
A magnetic resonance imaging apparatus comprising:
- a gantry with a gradient coil which applies a gradient magnetic field to a subject in a static magnetic field;
- a bed which slides a top board in a longitudinal direction of the top board with the subject placed thereon;
- a high-frequency coil which applies the gradient magnetic field and a high-frequency pulse signal to the subject, and detects a magnetic resonance signal emitted from the subject;
- and
- a damping member which damps noise which occurs when the gradient coil is driven, or a support member which supports the gradient coil, the damping member or the support member providing an asymmetrical structure with respect to a plane perpendicular to the longitudinal direction.
A magnetic resonance imaging apparatus comprising:
- a static field generator which generates a static magnetic field in a diagnosis space;
- a gradient coil which generates a gradient magnetic field in the static magnetic field;
- a movement unit which moves a subject in a direction in which the subject is inserted into and pulled out of the diagnosis space;
- and
- a supporter which supports the gradient coil, the supporter including at least one damping member located to provide an asymmetrical structure with respect to a plane perpendicular to the first direction.
A magnetic resonance imaging apparatus comprising:
- a static field generator which generates a static magnetic field in a diagnosis space;
- a gradient coil which generates a gradient magnetic field in the static magnetic field;
- a movement unit which moves a subject in a first direction in which the subject is inserted into and pulled out of the diagnosis space through an inlet/outlet of the diagnosis space;
- and
- a supporter which supports the gradient coil,
- the supporter including:
- a first damping member and a second damping member provided in the first direction;
- and
- a first support member and a second support member which support the first and second damping members on a floor, and have different thicknesses in the first direction.
A magnetic resonance imaging apparatus comprising:
- a static field generator which generates a static magnetic field in a diagnosis space;
- a gradient coil which generates a gradient magnetic field in the static magnetic field;
- a movement unit which moves a subject in a direction in which the subject is insert into and pulled out of the diagnosis space through an inlet/outlet of the diagnosis space;
- and
- a supporter which supports the gradient coil, the supporter including a first damping member providing near an end of the gradient coil away from the inlet/outlet in the first direction, and preventing the gradient coil from vibrating in the first direction.
Dependencies are inferred from the claim text.