发明申请
- 专利标题: Magnetic resonance method for forming a fast dynamic image
- 专利标题(中): 用于形成快速动态图像的磁共振方法
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申请号: US10494927申请日: 2002-10-24
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公开(公告)号: US20050020897A1公开(公告)日: 2005-01-27
- 发明人: Miha Fuderer
- 申请人: Miha Fuderer
- 优先权: EP01204274.3 20011107
- 国际申请: PCT/IB02/04443 WO 20021024
- 主分类号: G01R33/48
- IPC分类号: G01R33/48 ; A61B5/055 ; G01R33/561 ; G01R33/565 ; A61B5/05
摘要:
A novel magnetic resonance imaging method is described, wherein the object to be imaged is segmented into a region of slow variation and into a region of fast variation which defines a restrictive dynamic FOV. The object in the overall FOV is sampled in k-space with a reduction factor. The k-space sampling positions in the region of fast variation are transformed by Fourier Transformation to the spatial domain and are transformed additionally to the temporal-frequency domain. Further the positions in the temporal-frequency domain derived from the sub-sampled positions in k-space are unfolded on the basis of the spatial coil sensitivity profiles of the set of receiving coils, whereas the parts of the temporal-frequency domain related to the region of slow variation are set to zero, and the resulting data in the temporal-frequency domain is Fourier transformed to the temporal domain.