发明授权
- 专利标题: Method and apparatus for using B1 map to correct intensity of magnetic resonance images
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申请号: US14584272申请日: 2014-12-29
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公开(公告)号: US10054658B2公开(公告)日: 2018-08-21
- 发明人: Dawei Gui , Xiaoli Zhao , Zhenghui Zhang , Hao Shen , Stephen Joseph Garnier
- 申请人: GENERAL ELECTRIC COMPANY
- 申请人地址: US NY Schenectady
- 专利权人: GENERAL ELECTRIC COMPANY
- 当前专利权人: GENERAL ELECTRIC COMPANY
- 当前专利权人地址: US NY Schenectady
- 代理机构: Grogan, Tuccillo & Vanderleeden, LLP
- 主分类号: G01R33/56
- IPC分类号: G01R33/56 ; G01R33/565 ; G01R33/24
摘要:
A controller that is operatively connected with a magnet assembly, which defines a target volume; and an image processor, which is configured to obtain calibration data from the controller; map B1 transmit intensity from the magnet assembly to the target volume, based on the calibration data; calculate a B1 transmit shading correction based at least on the map of B1 transmit intensity and on pulse sequence parameters; obtain k-space data of an imaging subject within the target volume from the controller operating the magnet assembly based on the pulse sequence parameters; develop an MR image from the k-space data; and apply the B1 transmit shading correction to the MR image.