- 专利标题: SYSTEM FOR REDUCTION OF A MAGNETIC FRINGE FIELD OF A MAGNETIC RESONANCE IMAGING DEVICE
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申请号: US15581297申请日: 2017-04-28
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公开(公告)号: US20180313921A1公开(公告)日: 2018-11-01
- 发明人: Uri RAPOPORT , Yoram COHEN , Yair GOLDFARB
- 申请人: Aspect Imaging Ltd.
- 主分类号: G01R33/38
- IPC分类号: G01R33/38
摘要:
A magnetic resonance imaging (MRI) system is provided. The MRI system can include a magnetic field device to generate a magnetic field within a measurement volume and to generate a magnetic fringe field external to the measurement volume. The MRI system can include a ferromagnetic housing to envelop the magnetic field device. The housing can have a first portion and a second portion, where thickness of the first portion is different from thickness of the second portion. The MRI system can include a plate having a plate opening and positioned external to the housing at a predetermined distance from the housing. In some embodiments, the magnetic fringe field generated by the MRI system can be asymmetric with respect to a center of the measurement volume.