Magnetic resonance imaging apparatus and magnetic field forming apparatus
AssigneeGE Medical Systems Global Technology Company, LLC
InventorSeiichi Kitagawa
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Abstract
Occurrence of noise is to be prevented, and image quality improved. Dynamic dampers which damp vibration attributable to the gradient coil unit are arranged in positions which are extending areas of a gradient coil unit extending to protrude out of an accommodating space, and are different in positions from the accommodating space.
Claims8
A magnetic resonance imaging apparatus which generates an image of a subject on the basis of magnetic resonance signals from the subject in an accommodating space wherein a magnetostatic field is formed, the magnetic resonance imaging apparatus comprising:
- a gradient coil device, provided in said accommodating space, and forming a gradient magnetic field in said accommodating space;
- and
- a dynamic damper which damps the vibration of said gradient coil device,
- wherein:
- said gradient coil device is provided with an extending area which so extends as to protrude out of said accommodating space;
- and
- said dynamic damper is arranged in a position which is said extending area and which is different position from said accommodating space.
A magnetic field forming apparatus which forms a magnetic field in an accommodating space in which a subject is accommodated and a magnetostatic field is formed, the magnetic field forming apparatus comprising:
- a gradient coil device, provided in said accommodating space, and forming a gradient magnetic field in said accommodating space;
- and
- a dynamic damper which damps the vibration of said gradient coil device,
- wherein:
- said gradient coil device is provided with an extending area which so extends as to protrude out of said accommodating space;
- and
- said dynamic damper is arranged in a position which is said extending area and which is different position from said accommodating space.
Dependencies are inferred from the claim text.