专利检索 ap:("Koninklijke Philips Electronics N.V.") AND inv:"MULDER, Gerardus, B.J." 第 1 页

1.

发明公开
MAGNETIC RESONANCE IMAGING SCANNER WITH PRECISELY ALIGNED MAGNETIC FIELD-MODIFYING STRUCTURE 审中-公开
标题翻译：提供准确的设置的结构MRI修改磁场

公开(公告)号：EP1554593A1

公开(公告)日：2005-07-20

申请号：EP03751119.3

申请日：2003-10-15

申请人： Koninklijke Philips Electronics N.V.

发明人： DEMEESTER, Gordon, D. , MORICH, Michael, A. , MCGINLEY, John, V.M. , MULDER, Gerardus, B.J.

IPC分类号： G01R33/3873

CPC分类号： G01R33/3873

摘要： In a method for aligning a magnetic field modifying structure (74) in a magnet bore (12) of a magnetic resonance imaging scanner (8), a reference magnetic field map of the magnet bore (12) is measured without the magnetic field modifying structure (74) inserted. The magnetic field modifying structure (74) is inserted into the magnet bore (12). A second magnetic field map of the magnetic bore (12) is measured with the magnetic field modifying structure (74) inserted. At least one odd harmonic component of the first and second magnetic field maps is extracted. The magnetic field modifying structure (74) is aligned in the magnet bore (12) based on a comparison of the odd harmonic component of the first and second magnetic field maps.