Invention Grant
- Patent Title: Prevention quench in a magnetic resonance examination system
- Patent Title (中): 预防在磁共振检查系统中淬火
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Application No.: US12513183Application Date: 2007-11-05
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Publication No.: US08058873B2Publication Date: 2011-11-15
- Inventor: Holger Timinger
- Applicant: Holger Timinger
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP06123801 20061110
- International Application: PCT/IB2007/054473 WO 20071105
- International Announcement: WO2008/056313 WO 20080515
- Main IPC: G01V3/00
- IPC: G01V3/00

Abstract:
A magnetic resonance examination system (10) includes a superconducting main magnet (20) surrounding an examination region (18) and generating a main magnetic field in the examination region (18) A magnetic field gradient system (30) selectively causes alternating gradient magnetic fields in the examination region (18). The magnetic field gradient system (30) is disposed outside of the main magnet (20). In order to provide stable operation of the superconducting main magnet (20) of a magnetic resonance examination system (10) with such a magnetic field gradient system (30), the magnetic resonance examination system (10) is provided with a predicting device (91) and a preventing device (92) The predicting device (91) predicts the behavior of the main magnet (20) due to the gradient magnetic fields (e.g., by calculating the expected heat load of the main magnet caused by an imaging protocol) and the preventing device (92) prevents, based on the predicted behavior of the main magnet (20), the main magnet (20) from quenching.
Public/Granted literature
- US20100069738A1 PREVENTION QUENCH IN A MAGNETIC RESONANCE EXAMINATION SYSTEM Public/Granted day:2010-03-18
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