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.

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。

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。

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 。