基本信息:
- 专利标题： TRAVELING WAVE MRI IN HIGH BO FIELD STRENGTHS
- 专利标题（中）：高波场强度旅行波
- 申请号：PCT/US2011/048240 申请日：2011-08-18
- 公开(公告)号：WO2012030548A1 公开(公告)日：2012-03-08
- 发明人： KIRULUTA, Andrew
- 申请人： PRESIDENT AND FELLOWS OF HARVARD COLLEGE , KIRULUTA, Andrew
- 申请人地址： 17 Quincy Street Cambridge, Massachusetts 02138 US
- 专利权人： PRESIDENT AND FELLOWS OF HARVARD COLLEGE,KIRULUTA, Andrew
- 当前专利权人： PRESIDENT AND FELLOWS OF HARVARD COLLEGE,KIRULUTA, Andrew
- 当前专利权人地址： 17 Quincy Street Cambridge, Massachusetts 02138 US
- 代理机构： KUDIRKA, Paul
- 优先权： US61/378,210 20100830
- 主分类号： G01R33/48
- IPC分类号： G01R33/48
摘要：
In an MRI scanner, the transmission and reception of RF excitation and detected signal waves is accomplished using far field excitation instead of conventional near field excitation. By superimposing two counter-propagating waves from the same source in the MRI sample interference fringes are recorded in the sample in such a way that the relative phase between the two propagation wave vectors determines the periodicity of the maxima and minima in the interference fringe pattern. The complete fringe pattern, known as a spatial hologram, contains both the phase and amplitude information of the information-bearing wave. When exposed to a replica of the original reference wave, the fringe pattern acts as a diffraction grating, reproducing the information-bearing field propagating at the same relative phase.
摘要（中）：
在MRI扫描仪中，RF激发和检测信号波的发射和接收使用远场激励而不是传统的近场激励来实现。 通过在MRI样本中叠加来自相同源的两个反向传播波，将干涉条纹记录在样本中，使得两个传播波矢量之间的相对相位确定干涉条纹图案中的最大值和最小值的周期性。 称为空间全息图的完整条纹图案包含信息承载波的相位和幅度信息。 当暴露于原始参考波的复制品时，条纹图案用作衍射光栅，再现在相同相对相位传播的信息承载场。
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01R | 测量电变量；测量磁变量（通过转换成电变量对任何种类的物理变量进行测量参见G01类名下的 |
| ------G01R33/00 | 测量磁变量的装置或仪器 |
| --------G01R33/02 | .测量磁场或磁通量的方向或大小 |
| ----------G01R33/24 | ..用于测量磁场或磁通量的方向或大小 |
| ------------G01R33/48 | ...核磁共振图像系统 |