发明授权
- 专利标题: Method and magnetic resonance apparatus for dynamic magnetic resonance imaging
- 专利标题(中): 用于动态磁共振成像的方法和磁共振装置
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申请号: US11777338申请日: 2007-07-13
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公开(公告)号: US08073522B2公开(公告)日: 2011-12-06
- 发明人: Alto Stemmer
- 申请人: Alto Stemmer
- 申请人地址: DE Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DE Munich
- 代理机构: Schiff Hardin LLP
- 优先权: DE102006033862 20060721
- 主分类号: A61B5/055
- IPC分类号: A61B5/055
摘要:
The invention concerns a method and magnetic resonance apparatus for acquisition and generation of a time-resolved image series of an anatomical organ with a quasi-periodical movement in a subject, k-space is sampled in segments with a number of partial data sets, with the sampling points of each partial data set corresponding to grid points of a Cartesian sampling grid of a k-space segment, and the Cartesian sampling grids of the k-space segments being rotated relative to one another. A series of sub-data sets is incompletely acquired for each partial data set using alternating sampling schemes. Each incomplete sub-data set is associated with one of the individual images. For at least some of the partial data sets, complete sub-data sets are reconstructed from the incomplete sub-data sets. For the reconstruction of the individual images, in each of the individual images, at least some of the complete sub-data sets that are associated with this individual image are used.
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