发明授权
- 专利标题: MR imaging method and apparatus
- 专利标题(中): MR成像方法和装置
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申请号: US286256申请日: 1999-04-05
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公开(公告)号: US6137289A公开(公告)日: 2000-10-24
- 发明人: Takao Goto
- 申请人: Takao Goto
- 申请人地址: JPX Tokyo
- 专利权人: GE Yokogawa Medical Systems, Limited
- 当前专利权人: GE Yokogawa Medical Systems, Limited
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX10-140295 19980521
- 主分类号: G01R33/48
- IPC分类号: G01R33/48 ; A61B5/055 ; G01R33/565 ; G06T1/00 ; G01V3/00
摘要:
In order to prevent image quality degradation which occurs when a flow compensating pulse is applied in a pulse sequence according to the fast spin echo technique, a bipolar pulse constituted of gzfcf and gzmfcf (FIG. 5) is incorporated in the slice gradient before an inversion pulse applied immediately before the flow compensating pulse constituted of fcrdep and fcrrep incorporated in the read gradient in the pulse sequence, thereby imparting a phase shift equal to a non-linear phase shift due to the flow compensating pulse constituted of fcrdep and fcrrep.
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