![B1 FIELD CONTROL IN MAGNETIC RESONANCE IMAGING](/ep/2006/07/26/EP1682914A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: B1 FIELD CONTROL IN MAGNETIC RESONANCE IMAGING
- 专利标题(中):B1-FELDSTEUERUNG BEI DER MAGNETRESONANZABBILDUNG
- 申请号:EP04770206.3 申请日:2004-10-07
- 公开(公告)号:EP1682914A1 公开(公告)日:2006-07-26
- 发明人: MORICH, Michael, A. , DEMEESTER, Gordon, D. , ZHAI, Zhiyong
- 申请人: Koninklijke Philips Electronics N.V.
- 申请人地址: Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: KONINKLIJKE PHILIPS N.V.
- 当前专利权人地址: KONINKLIJKE PHILIPS N.V.
- 代理机构: Cohen, Julius Simon
- 优先权: US517224P 20031031
- 国际公布: WO2005043182 20050512
- 主分类号: G01R33/32
- IPC分类号: G01R33/32
摘要:
Multi-slice magnetic resonance imaging of a region of interest of an imaging subject (16) is performed using a radio frequency coil (40) arranged to generate a B1 magnetic field in the region of interest. One or more processors (44, 82, 88, 110) determine a B1 field value for each slice that is representative of the B1 field over a selected area of the slice, accounting for subject effects on the BI field, and determine an adjusted per-slice radio frequency excitation for each slice that adjusts the B1 field value for the slice to a selected value. A magnetic resonance imaging system (10, 44, 46, 50, 52) acquires magnetic resonance imaging data for each slice using the adjusted per-slice radio frequency excitation for that slice. A reconstruction processor (58) reconstructs the acquired magnetic resonance imaging data into a reconstructed image representation.
摘要(中):
使用布置成在感兴趣区域中产生B 1磁场的射频线圈(40)来执行成像对象(16)的感兴趣区域的多切片磁共振成像。 一个或多个处理器(44,82,88,110)确定在切片的选定区域上代表B1场的每个切片的B1字段值,以考虑对BI字段的对象影响,并且确定每个 对于将切片的B 1 SUB字段值调整为选定值的每个切片的 - 滑动射频激励。 磁共振成像系统(10,44,46,50,52)使用针对该切片的调节的每切片射频激励来获取每个切片的磁共振成像数据。 重建处理器(58)将所获取的磁共振成像数据重建为重建图像表示。
公开/授权文献:
- EP1682914B1 B1 FIELD CONTROL IN MAGNETIC RESONANCE IMAGING 公开/授权日:2017-12-13
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 |
------------G01R33/32 | ...激励或检测系统,例如用射频信号 |