Magnetic resonance imaging apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorYoshitomo Sakakura
Life of this patent
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Abstract
A Magnetic Resonance Imaging (MRI) apparatus includes a static magnetic-field magnet that generates a static magnetic field in an imaging area in which a subject is to be placed; a main coil that is provided on the inner side of the static magnetic-field magnet, and applies a gradient magnetic field onto a subject placed in the static magnetic field; and a shield coil that is provided between the static magnetic-field magnet and the main coil, and shields a gradient magnetic field generated by the main coil. Moreover, a Radio Frequency (RF) coil side cooling system including a plurality of cooling pipes that circulates a coolant in pipe is provided on the inner side of the main coil.
Claims15
A magnetic resonance imaging apparatus comprising:
- a static magnetic-field magnet configured to generate a static magnetic field in an imaging area in which a subject is to be placed;
- a main coil that is provided on an inner side of the static magnetic-field magnet, and which is configured to apply a gradient magnetic field onto the subject when placed in the static magnetic field;
- a shield coil that is provided between the static magnetic-field magnet and the main coil, and which is configured to shield the gradient magnetic field generated by the main coil;
- a radio-frequency coil that is provided on an inner side of the main coil, and which is configured to apply a radio-frequency magnetic field onto the subject placed inside the static magnetic field;
- a radio-frequency shield that is provided between the main coil and the radio-frequency coil, and which is configured to shield the radio-frequency magnetic field generated by the radio-frequency coil;
- and
- an inner-layer cooling pipe that is provided on an inner side of the main coil and between the radio-frequency coil and the radio-frequency shield, and which is configured to pass a coolant in the inner-layer cooling pipe.
Dependencies are inferred from the claim text.