发明申请
WO2013181517A3 SYSTEM AND METHOD FOR MAGNETIC RESONANCE IMAGING USING HIGHLY ACCELERATED PROJECTION IMAGING
审中-公开
基本信息:
- 专利标题: SYSTEM AND METHOD FOR MAGNETIC RESONANCE IMAGING USING HIGHLY ACCELERATED PROJECTION IMAGING
- 专利标题(中):使用高速投影成像进行磁共振成像的系统和方法
- 申请号:PCT/US2013043582 申请日:2013-05-31
- 公开(公告)号:WO2013181517A3 公开(公告)日:2014-01-30
- 发明人: MUFTULER LUTFI TUGAN , ERSOZ ALI , ARPINAR VOLKAN EMRE
- 申请人: MEDICAL COLLEGE OF WISCONSIN , MUFTULER LUTFI TUGAN , ERSOZ ALI , ARPINAR VOLKAN EMRE
- 专利权人: MEDICAL COLLEGE OF WISCONSIN,MUFTULER LUTFI TUGAN,ERSOZ ALI,ARPINAR VOLKAN EMRE
- 当前专利权人: MEDICAL COLLEGE OF WISCONSIN,MUFTULER LUTFI TUGAN,ERSOZ ALI,ARPINAR VOLKAN EMRE
- 优先权: US201261653795 2012-05-31
- 主分类号: G01R33/48
- IPC分类号: G01R33/48 ; G01R33/561
摘要:
A method for highly accelerated projection imaging ("EtaAlphaRhoI") is provided. In this method, conventional linear gradients are used to obtain coil sensitivity-weighted projections of the object being imaged. Only a relatively small number of projections, such as sixteen or less, of the object are required to reconstruct a two-dimensional image of the object, unlike conventional projection imaging techniques. The relationship between the voxel values of the imaged object and the coil sensitivity- weighted projections is formulated as a linear system of equations and the reconstructed images are obtained by solving this matrix equation. This method advantageously allows higher acceleration rates compared to echo planar imaging ("EpsilonRhoI") with SENSE or GRAPPA acceleration. Moreover, the method does not require any additional or specialized hardware because hardware in conventional MRI scanners is adequate to implement the method.
摘要(中):
提供了一种用于高度加速投影成像(“EtaAlphaRhoI”)的方法。 在该方法中,使用常规的线性梯度来获得被成像物体的线圈灵敏度加权投影。 与传统的投影成像技术不同,仅需要相对较少数量的诸如16个或更少的物体来重建物体的二维图像。 成像对象的体素值与线圈灵敏度加权投影之间的关系被形成为线性方程组,并且通过求解该矩阵方程获得重构图像。 与具有SENSE或GRAPPA加速度的回波平面成像(“EpsilonRhoI”)相比,该方法有利地允许更高的加速率。 此外,该方法不需要任何额外的或专门的硬件,因为常规MRI扫描仪中的硬件足以实现该方法。
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 |