发明授权
US08120359B2 Magnetic resonance apparatus and method for determining a pulse sequence to feed an RF radiating coil
有权
用于确定用于馈送RF辐射线圈的脉冲序列的磁共振装置和方法
- 专利标题: Magnetic resonance apparatus and method for determining a pulse sequence to feed an RF radiating coil
- 专利标题(中): 用于确定用于馈送RF辐射线圈的脉冲序列的磁共振装置和方法
-
申请号: US12487748申请日: 2009-06-19
-
公开(公告)号: US08120359B2公开(公告)日: 2012-02-21
- 发明人: Dirk Diehl , Rene Gumbrecht , Juergen Nistler , Wolfgang Renz , Markus Vester , Sebastian Wolf
- 申请人: Dirk Diehl , Rene Gumbrecht , Juergen Nistler , Wolfgang Renz , Markus Vester , Sebastian Wolf
- 申请人地址: DE Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DE Munich
- 代理机构: Schiff Hardin LLP
- 优先权: DE102008029175 20080619
- 主分类号: G01V3/00
- IPC分类号: G01V3/00
摘要:
In a magnetic resonance apparatus having an RF radiating coil and gradient coils, and in a method for operating such a magnetic resonance apparatus, a pulse sequence, composed of multiple time steps, is specified for operating the gradient coils to time-dependently select regions of a selected slice of a selected volume of a subject. A non-linear equation system is then solved to obtain feed parameters for individual channels of the transmit coil for each time step, with specification of a desired target magnetization, and dependent on the pulse sequence specified for the gradient coils. The non-linear equation system is based on discrete values for time and space variable and, in addition to equations resulting from the Bloch equation, which are non-linear in their feed parameters, includes at least one additional equation that describes boundary conditions for the examination of the subject.