发明授权
- 专利标题: Method for the correction of artifacts in magnetic resonance images
- 专利标题(中): 用于校正磁共振图像中伪像的方法
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申请号: US09606065申请日: 2000-06-29
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公开(公告)号: US06515478B1公开(公告)日: 2003-02-04
- 发明人: Karsten Wicklow , Oliver Heid
- 申请人: Karsten Wicklow , Oliver Heid
- 优先权: DE19931210 19990706
- 主分类号: G01V300
- IPC分类号: G01V300
摘要:
In a method for correcting artifacts in magnetic resonance images that are caused, in a magnetic resonance device, by transverse magnetic field components that are oriented transverse to a basic magnetic field of the magnetic resonance device, wherein the magnetic resonance device has a gradient coil system for generating magnetic gradient fields and a high frequency transmitter for exciting magnetic resonance signals, during a measurement sequence a frequency correction value is fed to the high frequency transmitter for a correction area, this frequency correction value being determined dependent on the transverse magnetic field components, and/or an additional gradient field is produced for compensating the transverse magnetic field components.