Invention Grant
- Patent Title: System and apparatus for compensating for magnetic field distortion in an MRI system
- Patent Title (中): 用于补偿MRI系统中磁场畸变的系统和装置
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Application No.: US13690392Application Date: 2012-11-30
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Publication No.: US09274188B2Publication Date: 2016-03-01
- Inventor: Weijun Shen , Timothy J. Havens , Longzhi Jiang , Tesfaye K. Kidane
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Main IPC: G01V3/00
- IPC: G01V3/00 ; G01R33/34 ; G01R33/387 ; G01R33/3815 ; G01R33/3875
Abstract:
A magnet apparatus for a magnetic resonance imaging system, the magnet apparatus includes a cylindrical vacuum vessel, a closed loop cooling system disposed within the vacuum vessel and a cylindrical thermal shield disposed between the vacuum vessel and the closed loop cooling system. A set of passive compensation coils are disposed within the vacuum vessel and used to compensate for magnetic field distortion caused by mechanical vibrations within the magnet apparatus.
Public/Granted literature
- US20140155268A1 SYSTEM AND APPARATUS FOR COMPENSATING FOR MAGNETIC FIELD DISTORTION IN AN MRI SYSTEM Public/Granted day:2014-06-05
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