Invention Grant
- Patent Title: Method for determining the spatial distribution of magnetic resonance signals through multi-dimensional RF excitation pulses
- Patent Title (中): 通过多维RF激励脉冲确定磁共振信号的空间分布的方法
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Application No.: US12678292Application Date: 2008-09-13
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Publication No.: US08082127B2Publication Date: 2011-12-20
- Inventor: Wolfgang Ruhm
- Applicant: Wolfgang Ruhm
- Applicant Address: DE Ettlingen
- Assignee: Bruker BioSpin MRI GmbH
- Current Assignee: Bruker BioSpin MRI GmbH
- Current Assignee Address: DE Ettlingen
- Agent Paul Vincent
- Priority: DE102007044463 20070918
- International Application: PCT/EP2008/007617 WO 20080913
- International Announcement: WO2009/036936 WO 20090326
- Main IPC: G01R33/54
- IPC: G01R33/54 ; G06F19/00

Abstract:
A method for determining the spatial distribution of magnetic resonance signals from an imaging area, wherein nuclear spins are excited in a spatially encoded fashion through multi-dimensional RF pulses, is characterized in that in a definition step, a resolution grid with resolution grid cells is predetermined, and in accordance with a predetermined phase encoding scheme, an excitation pattern is defined for each phase encoding step, in which the amplitudes within the imaging area are set in accordance with a predetermined distribution identically for each phase encoding step. In a preparatory step, the amplitude and phase behavior of the RF pulses to be irradiated is calculated in accordance with a predetermined k-space trajectory for each defined complex excitation pattern.
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