| 摘要 |
PROBLEM TO BE SOLVED: To provide a MRI apparatus capable of preventing an oversight of image deterioration based on magnetic variation of the outside of the magnet. SOLUTION: The MRI apparatus includes a means of generating magnetic fields such as a static magnetic field, a gradient magnetic field, and a high-frequency magnetic field and a means of detecting the variation of the outside magnetic field except of the magnetic field generated by the magnetic generating means, and it is equipped with an alarm means which alarms the existence or unexistence of detection of the outside magnetic fluctuation with the above detecting means. COPYRIGHT: (C)2009,JPO&INPIT |
