发明授权
- 专利标题: MAGNETIC RESONANCE IMAGING METHOD
- 专利标题(中): 磁PICTURE程序
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申请号: EP05702892.0申请日: 2005-02-03
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公开(公告)号: EP1716430B1公开(公告)日: 2008-09-24
- 发明人: FUDERER, Miha , EGGERS, Holger
- 申请人: Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
- 申请人地址: Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人: Koninklijke Philips Electronics N.V.,Philips Intellectual Property & Standards GmbH
- 当前专利权人: Koninklijke Philips Electronics N.V.,Philips Intellectual Property & Standards GmbH
- 当前专利权人地址: Groenewoudseweg 1 5621 BA Eindhoven NL
- 代理机构: Cohen, Julius Simon
- 优先权: EP04100486 20040210
- 国际公布: WO2005078470 20050825
- 主分类号: G01R33/561
- IPC分类号: G01R33/561
摘要:
A novel magnetic resonance imaging method and apparatus is described wherein an image is derived from sub-sampled magnetic resonance signals and on the basis of the spatial sensitivity profile of each receiving antenna. A sequence of RF-pulses and gradients is applied, which sequence corresponds to a set of trajectories containing at least one substantially non-linear trajectory in k-space, wherein the density of said trajectory set being substantially lower than the density corresponding to the object size. Each signal along said trajectory set is sampled at least at two different receiver antenna positions. The image is reconstructed by converting the data of said signals to a Cartesian grid by convolution with a gridding kernel, whereby the gridding kernel is specific for each antenna, differs between one region and another in k-space, and is a Fourier-transform of a pattern weighted for each antenna with respect to the Cartesian grid.
公开/授权文献
- EP1716430A2 MAGNETIC RESONANCE IMAGING METHOD 公开/授权日:2006-11-02
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