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    METHOD AND MAGNETIC RESONANCE APPARATUS FOR ECHO PLANAR IMAGING WITH DATA ENTRY INTO K-SPACE ALONG A ZIGZAG TRAJECTORY
    3.
    发明申请
    METHOD AND MAGNETIC RESONANCE APPARATUS FOR ECHO PLANAR IMAGING WITH DATA ENTRY INTO K-SPACE ALONG A ZIGZAG TRAJECTORY 有权
    用于数据输入到ZIGZAG TRAJECTORY中的K空间的ECHO平面成像的方法和磁共振装置

    公开(公告)号：US20140197834A1

    公开(公告)日：2014-07-17

    申请号：US14154364

    申请日：2014-01-14

    申请人： David Andrew Porter ,  Robin Heidemann

    发明人： David Andrew Porter ,  Robin Heidemann

    IPC分类号： G01R33/48

    CPC分类号： G01R33/4818 ,  G01R33/4824 ,  G01R33/5611 ,  G01R33/5616

    摘要： In a method and apparatus for echo planar magnetic resonance (MR) imaging sequence of phase encoding gradient fields and a sequence of readout gradient fields are applied in order to produce a well-defined zigzag-type trajectory for entering raw data into k-space. Zigzag-type trajectories can be achieved that have flanks without curvature, or without significant curvature. Cartesian methods for image reconstruction of parallel MR imaging are applied to echo planar MR imaging with such zigzag-type trajectories.

    摘要翻译： 在用于相位编码梯度场的回波平面磁共振（MR）成像序列和读出梯度场序列的方法和装置中，以便产生用于将原始数据输入到k空间中的良好定义的之字形型轨迹。 可以实现曲折型轨迹，其具有没有曲率的侧面，或没有显着的曲率。 用于平行MR成像的图像重建的笛卡尔方法被应用于具有这种锯齿形轨迹的回波平面MR成像。

    Magnetic resonance imaging method using a partial parallel acquisition technique with non-Cartesian occupation of k-space
    5.
    发明授权
    Magnetic resonance imaging method using a partial parallel acquisition technique with non-Cartesian occupation of k-space 有权
    磁共振成像方法采用部分并行采集技术与非笛卡尔占空比k空间

    公开(公告)号：US07132827B2

    公开(公告)日：2006-11-07

    申请号：US11126690

    申请日：2005-05-11

    申请人： Mark Griswold ,  Robin Heidemann ,  Gunnar Krüger

    发明人： Mark Griswold ,  Robin Heidemann ,  Gunnar Krüger

    IPC分类号： G01V3/00

    CPC分类号： G01R33/5611

    摘要： In a method for magnetic resonance imaging using a partial parallel acquisition technique with a non-Cartesian occupation of k-space, a number of antennas disposed around an imaging volume for reception of magnetic resonance signals and the magnetic resonance signals in the imaging volume are spatially coded by magnetic gradient fields, such that k-space for each antenna is only incompletely occupied with magnetic resonance signals with at least one trajectory proceeding around the origin of k-space. From the reception signals of each antenna, missing sample values of the trajectory that lie on a straight-line segment extending from the origin are determined in k-space according to a weighting with weighting factors from sample values of the trajectory that likewise lie on the straight lines, such that each k-space is completely occupied. A partial image of the imaging area is generated from each completely occupied k-space by means of a Fourier transformation. An image of the imaging volume is generated from the partial images.

    摘要翻译： 在使用具有非笛卡尔k空间的部分并行捕获技术的磁共振成像方法中，设置在用于接收磁共振信号的成像体积周围的多个天线和成像体积中的磁共振信号在空间上 由磁梯度场编码，使得每个天线的k空间仅仅被磁共振信号完全占据，其中至少一个轨迹围绕k空间的原点进行。 根据每个天线的接收信号，根据来自同一位于同一位置的轨迹的样本值的加权因子的加权，在k空间中确定位于从原点延伸的直线段上的轨迹的缺失采样值 直线，使得每个k空间被完全占用。 通过傅里叶变换从每个完全占用的k空间生成成像区域的部分图像。 从部分图像生成成像体积的图像。

    Magnetic resonance imaging method using a partial parallel acquisition technique with non-cartesian occupation of k-space
    6.
    发明申请
    Magnetic resonance imaging method using a partial parallel acquisition technique with non-cartesian occupation of k-space 有权
    磁共振成像方法采用部分并行采集技术与非笛卡尔占空k空间

    公开(公告)号：US20050264287A1

    公开(公告)日：2005-12-01

    申请号：US11126690

    申请日：2005-05-11

    申请人： Mark Griswold ,  Robin Heidemann ,  Gunnar Kruger

    发明人： Mark Griswold ,  Robin Heidemann ,  Gunnar Kruger

    IPC分类号： G01R33/56 ,  G01R33/561 ,  G01V3/00

    CPC分类号： G01R33/5611

    摘要： In a method for magnetic resonance imaging using a partial parallel acquisition technique with a non-Cartesian occupation of k-space, a number of antennas disposed around an imaging volume for reception of magnetic resonance signals and the magnetic resonance signals in the imaging volume are spatially coded by magnetic gradient fields, such that k-space for each antenna is only incompletely occupied with magnetic resonance signals with at least one trajectory proceeding around the origin of k-space. From the reception signals of each antenna, missing sample values of the trajectory that lie on a straight-line segment extending from the origin are determined in k-space according to a weighting with weighting factors from sample values of the trajectory that likewise lie on the straight lines, such that each k-space is completely occupied. A partial image of the imaging area is generated from each completely occupied k-space by means of a Fourier transformation. An image of the imaging volume is generated from the partial images.

    摘要翻译： 在使用具有非笛卡尔k空间的部分并行捕获技术的磁共振成像方法中，设置在用于接收磁共振信号的成像体积周围的多个天线和成像体积中的磁共振信号在空间上 由磁梯度场编码，使得每个天线的k空间仅仅被磁共振信号完全占据，其中至少一个轨迹围绕k空间的原点进行。 根据每个天线的接收信号，根据来自同一位于同一位置的轨迹的样本值的加权因子的加权，在k空间中确定位于从原点延伸的直线段上的轨迹的缺失采样值 直线，使得每个k空间被完全占用。 通过傅里叶变换从每个完全占用的k空间生成成像区域的部分图像。 从部分图像生成成像体积的图像。