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1. 发明授权

US10061007B2 Method, apparatus, and article for frequency-overlapped 3-D multispectral magnetic resonance images 有权
公开(公告)号：US10061007B2
公开(公告)日：2018-08-28
申请号：US14317728
申请日：2014-06-27
申请人： Dawei Gui , Kevin Matthew Koch
发明人： Dawei Gui , Kevin Matthew Koch
IPC分类号： G01V3/00 , G01R33/565 , G01R33/561
CPC分类号： G01R33/56536 , G01R33/5617
摘要： A method for acquiring 3D multispectral MRI of a target includes scanning a spectrum of spectral windows with an MRI scanner, wherein each spectral window of the spectrum defines a continuously-differentiable distribution of frequencies around a scan frequency and adjacent scan frequencies are spaced apart by substantially uniform frequency offsets such that adjacent spectral windows substantially uniformly overlap, wherein selected adjacent spectral windows are scanned in consecutive passes, and nearest neighbor spectral windows within each pass are scanned at a maximum temporal spacing within the pass.

2. 发明申请

US20140043024A1 MULTIPLE EXCITATION BLADE ACQUISITION FOR MOTION CORRECTION IN MAGNETIC RESONANCE IMAGING 有权
标题翻译：用于磁共振成像运动校正的多重激励叶片获取
公开(公告)号：US20140043024A1
公开(公告)日：2014-02-13
申请号：US13568893
申请日：2012-08-07
申请人： Dawei Gui , Ajeetkumar Gaddipati , Xiaoli Zhao , Shaorong Chang , Zhiqiang Li
发明人： Dawei Gui , Ajeetkumar Gaddipati , Xiaoli Zhao , Shaorong Chang , Zhiqiang Li
IPC分类号： G01R33/44
CPC分类号： G01R33/4824 , G01R33/56509
摘要： In an embodiment, a method includes performing a magnetic resonance (MR) data acquisition sequence including the acquisition of a plurality of blades of k-space data rotated about a section of k-space. The k-space data is representative of gyromagnetic material within a subject of interest, and each blade includes a plurality of encode lines defining a width of the respective blade. The acquisition of each blade includes receiving MR signal from echoes in two or more separate echo trains to fill at least a portion of the plurality of encode lines, and the echo trains are separated by an excitation pulse.
摘要翻译：在一个实施例中，一种方法包括执行磁共振（MR）数据获取序列，其包括以k空间的一部分旋转的k个空间数据的多个刀片的获取。 k空间数据表示感兴趣对象内的回旋磁性材料，并且每个叶片包括限定相应叶片的宽度的多个编码线。每个叶片的获取包括从两个或多个单独的回波列中的回波接收MR信号以填充多个编码线的至少一部分，并且回波列由激励脉冲分开。

3. 发明授权

US09322894B2 Multiple excitation blade acquisition for motion correction in magnetic resonance imaging 有权
标题翻译：用于磁共振成像中运动校正的多激励叶片采集
公开(公告)号：US09322894B2
公开(公告)日：2016-04-26
申请号：US13568893
申请日：2012-08-07
申请人： Dawei Gui , Ajeetkumar Gaddipati , Xiaoli Zhao , Shaorong Chang , Zhiqiang Li
发明人： Dawei Gui , Ajeetkumar Gaddipati , Xiaoli Zhao , Shaorong Chang , Zhiqiang Li
IPC分类号： G01R33/48 , G01R33/565
CPC分类号： G01R33/4824 , G01R33/56509
摘要： In an embodiment, a method includes performing a magnetic resonance (MR) data acquisition sequence including the acquisition of a plurality of blades of k-space data rotated about a section of k-space. The k-space data is representative of gyromagnetic material within a subject of interest, and each blade includes a plurality of encode lines defining a width of the respective blade. The acquisition of each blade includes receiving MR signal from echoes in two or more separate echo trains to fill at least a portion of the plurality of encode lines, and the echo trains are separated by an excitation pulse.
摘要翻译：在一个实施例中，一种方法包括执行磁共振（MR）数据获取序列，其包括以k空间的一部分旋转的k个空间数据的多个刀片的获取。 k空间数据表示感兴趣对象内的回旋磁性材料，并且每个叶片包括限定相应叶片的宽度的多个编码线。每个叶片的获取包括从两个或多个单独的回波列中的回波接收MR信号以填充多个编码线的至少一部分，并且回波列由激励脉冲分开。

4. 发明申请

US20150377994A1 METHOD, APPARATUS, AND ARTICLE FOR FREQUENCY-OVERLAPPED 3-D MULTISPECTRAL MAGNETIC RESONANCE IMAGES 审中-公开
标题翻译：频率叠加三维多分辨磁共振图像的方法，装置和文章
公开(公告)号：US20150377994A1
公开(公告)日：2015-12-31
申请号：US14317728
申请日：2014-06-27
申请人： DAWEI GUI , KEVIN MATTHEW KOCH
发明人： DAWEI GUI , KEVIN MATTHEW KOCH
IPC分类号： G01R33/46
CPC分类号： G01R33/56536 , G01R33/5617
摘要： A method for acquiring 3D multispectral MRI of a target includes scanning a spectrum of spectral windows with an MRI scanner, wherein each spectral window of the spectrum defines a continuously-differentiable distribution of frequencies around a scan frequency and adjacent scan frequencies are spaced apart by substantially uniform frequency offsets such that adjacent spectral windows substantially uniformly overlap, wherein selected adjacent spectral windows are scanned in consecutive passes, and nearest neighbor spectral windows within each pass are scanned at a maximum temporal spacing within the pass
摘要翻译：用于获取目标的3D多光谱MRI的方法包括用MRI扫描仪扫描光谱窗口的光谱，其中光谱的每个光谱窗口定义围绕扫描频率的连续可微分布的频率，并且相邻的扫描频率基本上间隔开均匀频率偏移，使得相邻频谱窗口基本上均匀地重叠，其中选择的相邻频谱窗口在连续遍中被扫描，并且每个遍内的最近邻谱图窗口以通过内的最大时间间隔被扫描

5. 发明申请

US20070103155A1 Method and apparatus for magnetic resonance imaging using directional selective K-space acquisition 审中-公开
标题翻译：使用方向选择性K空间采集的磁共振成像方法和装置
公开(公告)号：US20070103155A1
公开(公告)日：2007-05-10
申请号：US11271119
申请日：2005-11-10
申请人： Nikolaos Tsekos , Dawei Gui
发明人： Nikolaos Tsekos , Dawei Gui
IPC分类号： G01V3/00
CPC分类号： G01R33/5635 , G01R33/4824 , G01R33/4833 , G01R33/561
摘要： A method of selecting a portion of k-space data for acquisition in a magnetic resonance imaging (MRI) scan of a body, the body having a target therein. The method includes defining the target in real space, translating the defined target into a k-space representation thereof and selecting the region corresponding to the k-space representation of the target for data acquisition during the MRI scan, wherein the MRI scan is substantially limited to acquisition of the selected region. In addition, this method may include the target having an orientation relative to the principal axis of the MRI scan and the target defining step includes defining the target in terms of target length “LR”, target width “WR”, and target angular orientation “θR” relative to the MRI scan principal axis and the translating step may include converting LR, WR, and θR to their k-space representations LK, WK, and θK.
摘要翻译：在身体的磁共振成像（MRI）扫描中选择用于获取的k空间数据的一部分的方法，所述身体在其中具有目标。该方法包括在实际空间中定义目标，将定义的目标转换为其k空间表示，并且在MRI扫描期间选择与用于数据采集的目标的k空间表示相对应的区域，其中MRI扫描基本上受限收购所选地区。此外，该方法可以包括具有相对于MRI扫描的主轴的取向的目标，并且目标定义步骤包括根据目标长度“L”R“定义目标，目标宽度” 并且相对于MRI扫描主轴的目标角度定向“θ”R“>，并且平移步骤可以包括转换L W SUB和R SUB与它们的k空间表示L，K，K和N， > K 。

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