发明申请
- 专利标题: Motion compensation for magnetic resonance imaging
- 专利标题(中): 磁共振成像运动补偿
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申请号: US11115308申请日: 2005-04-27
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公开(公告)号: US20060244445A1公开(公告)日: 2006-11-02
- 发明人: Marshall Sussman , Naeem Merchant , Graham Wright , Lawrence White
- 申请人: Marshall Sussman , Naeem Merchant , Graham Wright , Lawrence White
- 主分类号: G01V3/00
- IPC分类号: G01V3/00
摘要:
An MRI system and method for acquiring motion-compensated MR image data of an object. The MRI system includes an MRI device for generating a uniform magnetic field through the object, magnetic field gradients for imaging a portion of the object and an RF excitation field for evoking NMR response signals from the object; a computer for controlling the operation of the MRI system; a motion compensation module for generating a plurality of navigator waveforms for evoking a corresponding plurality of navigator echoes from the portion of the object while the object is being imaged, and processing the plurality of navigator echoes by determining a subset of similar navigator echoes and removing rigid-body translation from the NMR response signals associated with the subset of similar navigator echoes; and, interface circuitry for generating the magnetic gradient, RF and navigator waveforms and sampling the NMR response signals and the plurality of navigator echoes.
公开/授权文献
- US07239136B2 Motion compensation for magnetic resonance imaging 公开/授权日:2007-07-03