Title:
A magnetic resonance imaging system, its operating method, and a quench prevention device
Document Type and Number:
Japanese Patent JP5984819
Kind Code:
B2
Abstract:
In order to prevent quenching caused accidentally in a superconducting magnet, an MRI apparatus vibrates the superconducting magnet in order to prevent quenching of the superconducting magnet in a time period for which a predetermined imaging sequence is not executed (step 210). As a specific method, a gradient magnetic field may be generated by a gradient magnetic field coil for an imaging sequence of the MRI apparatus, or a gradient magnetic field may be generated using a gradient magnetic field coil for vibration provided apart from the gradient magnetic field coil for an imaging sequence. In addition, in a period for which the predetermined imaging sequence is not executed, a phantom may be imaged to prevent the quenching of the superconducting magnet.
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Inventors:
Munetaka Tsuda
Application Number:
JP2013533625A
Publication Date:
September 06, 2016
Filing Date:
September 05, 2012
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
A61B5/055; A61B5/05; G01R33/3815; G01R33/385; G01R33/48
Domestic Patent References:
| JP6188119A | ||||
| JP2010508936A |
Foreign References:
| WO2010143603A1 |
Attorney, Agent or Firm:
Naotaka Tamura