![在并行发射MRI中的虚拟线圈仿真](/CN/2011/8/10/images/201180050351.jpg)
基本信息:
- 专利标题: 在并行发射MRI中的虚拟线圈仿真
- 专利标题(英):Virtual coil emulation in parallel transmission mri
- 申请号:CN201180050351.8 申请日:2011-08-15
- 公开(公告)号:CN103154761A 公开(公告)日:2013-06-12
- 发明人: K·内尔克 , P·博尔纳特
- 申请人: 皇家飞利浦电子股份有限公司
- 申请人地址: 荷兰艾恩德霍芬
- 专利权人: 皇家飞利浦电子股份有限公司
- 当前专利权人: 皇家飞利浦电子股份有限公司
- 当前专利权人地址: 荷兰艾恩德霍芬
- 代理机构: 永新专利商标代理有限公司
- 代理人: 王英; 刘炳胜
- 优先权: 10173556.1 2010.08.20 EP
- 国际申请: PCT/IB2011/053611 2011.08.15
- 国际公布: WO2012/023098 EN 2012.02.23
- 进入国家日期: 2013-04-18
- 主分类号: G01R33/561
- IPC分类号: G01R33/561
The invention relates to a virtual coil emulation method to be used in a magnetic resonance imaging scan for acquiring a magnetic resonance image of an object (10), wherein the scan is performed by an MR system (1) using a physical coil arrangement (9; 11; 12; 13) comprising set of individual transmit coils, the coils being adapted for transmission of a desired RF transmit field to the object (10) for magnetic resonance spin excitation of the object (10), wherein each coil is associated with a physical transmit channel, wherein the RF transmit field corresponds to a virtual arrangement of two or more of said coils, and wherein virtual transmit channel properties comprise virtual transmit channel weights are assigned to the RF transmit field, said virtual transmit channel weights describe the virtual complex RF field amplitudes with respect to each individual coil of the virtual coil arrangement required to be applied to the physical coils (9; 11; 12; 13) for generating the RF transmit field.
公开/授权文献:
- CN103154761B 在并行发射MRI中的虚拟线圈仿真 公开/授权日:2015-11-25
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 |
------------G01R33/46 | ...核磁共振频谱 |
--------------G01R33/54 | ....信号处理系统,如使用脉冲序列 |
----------------G01R33/56 | .....图像增强或修正,如减法或平均技术 |
------------------G01R33/561 | ......通过减少扫描时间,即快速获取系统,如使用平面回波脉冲序列 |