| 摘要 |
PROBLEM TO BE SOLVED: To reliably prevent occurrence of magnetic attraction than a conventional art. SOLUTION: A magnetic field for detection is generated by a coil 211a and a power source 251a for detection, and presence/absence of approach of a magnetic body to an MRI apparatus is determined by an approach determination part 253a based on the intensity variation of the magnetic field for detection of the approach. In response to the presence of approach of the magnetic body, for example, an alarming part 24a gives an alarm to prevent the magnetic field attraction of the magnetic body. COPYRIGHT: (C)2008,JPO&INPIT
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