Magnetic resonance imaging apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorYoshitomo SAKAKURA
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Abstract
In an MRI apparatus, a detecting unit that includes a thermographic imaging equipment and a normal imaging camera detects a change in temperature of an imaging space from outside of the imaging space. A judging unit judges whether the imaging space has a point at a temperature greater than a threshold TH, and if the judging unit judges the imaging space has such a point with a temperature greater than the threshold, the apparatus stops the sequence that applies a gradient magnetic field to the subject.
Claims20
A magnetic resonance imaging apparatus comprising:
- a static magnetic field generating unit that generates a static magnetic field to a subject inserted into an imaging space;
- a gradient magnetic field generating unit that generates a gradient magnetic field to the subject;
- a transmitting unit that transmits a radio frequency pulse to the subject to generate a nuclear magnetic resonance;
- an image data producing unit that generates a tomographic image of the subject based on the nuclear magnetic resonance signal;
- a detecting unit that detects a change in temperature in the imaging space from outside of the imaging space;
- a judging unit that judges whether the imaging space has a point at a temperature greater than a threshold;
- and
- a controller that controls the gradient magnetic field generating unit to stop generating the gradient magnetic field to the subject in the case that the judging unit judges the imaging space has a point at a temperature greater than the threshold.
A magnetic resonance imaging apparatus comprising:
- a static magnetic field generating unit that generates a static magnetic field in an imaging space into which a subject is placed;
- a gradient magnetic field generating unit that generates a gradient magnetic field to the subject;
- a transmitting unit that transmits a radio frequency pulse to the imaging space;
- an image data producing unit that makes a tomographic image of the subject based on the nuclear magnetic resonance signal;
- a detecting unit that detects a change in temperature in the imaging space from outside of the imaging space;
- and
- a display unit that displays information related to the change in temperature of the imaging space.
Dependencies are inferred from the claim text.