Invention Grant
US08082127B2 Method for determining the spatial distribution of magnetic resonance signals through multi-dimensional RF excitation pulses 有权
通过多维RF激励脉冲确定磁共振信号的空间分布的方法

  • 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
  • Application No.: US12678292
    Application Date: 2008-09-13
  • Publication No.: US08082127B2
    Publication 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
Method for determining the spatial distribution of magnetic resonance signals through multi-dimensional RF excitation pulses
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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