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1. 发明授权

US07595639B2 System and method of angular elliptic centric view ordering for 3D MR acquisitions 有权
标题翻译：用于3D MR采集的角椭圆中心视图排序的系统和方法
公开(公告)号：US07595639B2
公开(公告)日：2009-09-29
申请号：US12014267
申请日：2008-01-15
申请人： Ersin Bayram , Charles R. Michelich , Anthony T. Vu
发明人： Ersin Bayram , Charles R. Michelich , Anthony T. Vu
IPC分类号： G01V3/00
CPC分类号： G01R33/56518 , G01R33/4818 , G01R33/4822
摘要： A magnetic resonance imaging (MRI) apparatus includes an MRI system having a plurality of gradient coils positioned about a bore of a magnet. An RF transceiver system and an RF switch are controlled by a pulse module to transmit and receive RF signals to and from an RF coil assembly to acquire MR images. The MRI apparatus also includes a computer programmed to calculate a cost for each point to be acquired in k-space, acquire MR data based on the calculated cost for each point, and generate an MR image using the acquired MR data.
摘要翻译：磁共振成像（MRI）装置包括具有围绕磁体的孔定位的多个梯度线圈的MRI系统。 RF收发器系统和RF开关由脉冲模块控制以向RF线圈组件发射和接收RF信号以从RF线圈组件接收RF信号以获取MR图像。 MRI装置还包括被编程为计算在k空间中要获取的每个点的成本的计算机，基于每个点的计算成本获取MR数据，并且使用所获取的MR数据生成MR图像。

2. 发明申请

US20090179639A1 SYSTEM AND METHOD OF ANGULAR ELLIPTIC CENTRIC VIEW ORDERING FOR 3D MR ACQUISITIONS 有权
标题翻译：用于3D MR获取的角度中心视图的系统和方法
公开(公告)号：US20090179639A1
公开(公告)日：2009-07-16
申请号：US12014267
申请日：2008-01-15
申请人： Ersin Bayram , Charles R. Michelich , Anthony T. Vu
发明人： Ersin Bayram , Charles R. Michelich , Anthony T. Vu
IPC分类号： G01R33/483
CPC分类号： G01R33/56518 , G01R33/4818 , G01R33/4822
摘要： A magnetic resonance imaging (MRI) apparatus includes an MRI system having a plurality of gradient coils positioned about a bore of a magnet. An RF transceiver system and an RF switch are controlled by a pulse module to transmit and receive RF signals to and from an RF coil assembly to acquire MR images. The MRI apparatus also includes a computer programmed to calculate a cost for each point to be acquired in k-space, acquire MR data based on the calculated cost for each point, and generate an MR image using the acquired MR data.
摘要翻译：磁共振成像（MRI）装置包括具有围绕磁体的孔定位的多个梯度线圈的MRI系统。 RF收发器系统和RF开关由脉冲模块控制以向RF线圈组件发射和接收RF信号以从RF线圈组件接收RF信号以获取MR图像。 MRI装置还包括被编程为计算在k空间中要获取的每个点的成本的计算机，基于每个点的计算成本获取MR数据，并且使用所获取的MR数据生成MR图像。

3. 发明授权

US07649354B2 Method and apparatus for acquiring magnetic resonance imaging data 有权
标题翻译：用于获取磁共振成像数据的方法和装置
公开(公告)号：US07649354B2
公开(公告)日：2010-01-19
申请号：US11861916
申请日：2007-09-26
申请人： Ersin Bayram , Charles R. Michelich , Anthony T. Vu , Reed F. Busse
发明人： Ersin Bayram , Charles R. Michelich , Anthony T. Vu , Reed F. Busse
IPC分类号： G01V3/00
CPC分类号： G01R33/561 , A61B5/7285 , G01R33/4818 , G01R33/4824 , G01R33/5611
摘要： A multi-shot three-dimensional (3D) magnetic resonance imaging (MRI) data view-ordering strategy for uniform or variable density k-space sampling schemes is presented. The ky-kz plane is partitioned into multiple wedge-shaped “blades” (or radial fan beams). The angular size of individual blades may be adjusted according to the desired number of views for each blade. Each blade includes views near the origin that contain low-frequency information about the imaged object such that views having the most desirable characteristics may be used to fill the central portions of k-space.
摘要翻译：提出了用于均匀或可变密度k空间采样方案的多次立体（3D）磁共振成像（MRI）数据视图排序策略。 ky-kz平面分为多个楔形“叶片”（或径向扇形横梁）。单个叶片的角度尺寸可以根据每个叶片的期望数量来调节。每个刀片包括原点附近的包含关于成像对象的低频信息的视图，使得具有最理想特性的视图可以用于填充k空间的中心部分。

4. 发明申请

US20090082656A1 METHOD AND APPARATUS FOR ACQUIRING MAGNETIC RESONANCE IMAGING DATA 有权
标题翻译：用于获取磁共振成像数据的方法和装置
公开(公告)号：US20090082656A1
公开(公告)日：2009-03-26
申请号：US11861916
申请日：2007-09-26
申请人： Ersin Bayram , Charles R. Michelich , Anthony T. Vu , Reed F. Busse
发明人： Ersin Bayram , Charles R. Michelich , Anthony T. Vu , Reed F. Busse
IPC分类号： A61B5/055 , G01R33/20
CPC分类号： G01R33/561 , A61B5/7285 , G01R33/4818 , G01R33/4824 , G01R33/5611
摘要： A multi-shot three-dimensional (3D) magnetic resonance imaging (MRI) data view-ordering strategy for uniform or variable density k-space sampling schemes is presented. The ky-kz plane is partitioned into multiple wedge-shaped “blades” (or radial fan beams). The angular size of individual blades may be adjusted according to the desired number of views for each blade. Each blade includes views near the origin that contain low-frequency information about the imaged object such that views having the most desirable characteristics may be used to fill the central portions of k-space.
摘要翻译：提出了用于均匀或可变密度k空间采样方案的多次立体（3D）磁共振成像（MRI）数据视图排序策略。 ky-kz平面分为多个楔形“叶片”（或径向扇形横梁）。单个叶片的角度尺寸可以根据每个叶片的期望数量来调节。每个刀片包括原点附近的包含关于成像对象的低频信息的视图，使得具有最理想特性的视图可以用于填充k空间的中心部分。

5. 发明授权

US06670812B1 B-value calculation and correction using a linear segment gradient waveform model 有权
标题翻译：使用线性段梯度波形模型进行B值计算和校正
公开(公告)号：US06670812B1
公开(公告)日：2003-12-30
申请号：US10243162
申请日：2002-09-13
申请人： Bryan J. Mock , Charles R. Michelich
发明人： Bryan J. Mock , Charles R. Michelich
IPC分类号： G01V300
CPC分类号： G01R33/56341 , G01R33/543 , G01R33/5608
摘要： A technique for calculating actual b-values in a diffusion weighted magnetic resonance imaging system and of adjusting the observed b-value until it is within a tolerance range of the prescribed b-value. A diffusion weighted image with the desired diffusion sensitivity may then be produced. Calculation of the actual b-value is accomplished by integrating the linear segments of the gradient waveform. Adjustment of observed b-value is accomplished by initially scaling the diffusion lobe amplitude and comparing a recalculated b-value to the prescribed b-value. Additional adjustment is provided by means of a numeric search iteratively performed until the recalculated b-value is within tolerance of the prescribed b-value.
摘要翻译：一种用于计算扩散加权磁共振成像系统中的实际b值并调整观察到的b值直到其在规定的b值的容差范围内的技术。然后可以产生具有所需扩散灵敏度的扩散加权图像。通过积分梯度波形的线性段来实现实际b值的计算。通过初步缩放扩散波瓣幅度并将重新计算的b值与规定的b值进行比较来实现观察到的b值的调整。通过重复执行的数字搜索提供额外的调整，直到重新计算的b值在规定的b值的容限内。

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