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    Intra-blade filter for motion corrected magnetic resonance data
    2.
    发明授权
    Intra-blade filter for motion corrected magnetic resonance data 有权
    用于运动校正磁共振数据的叶片内滤波器

    公开(公告)号：US09239367B2

    公开(公告)日：2016-01-19

    申请号：US13619110

    申请日：2012-09-14

    申请人： James Hartman Holmes ,  Philip James Beatty

    发明人： James Hartman Holmes ,  Philip James Beatty

    IPC分类号： G01R33/341 ,  G06K9/00 ,  G01R33/56 ,  G01R33/48 ,  G01R33/565

    CPC分类号： G01R33/5602 ,  G01R33/4824 ,  G01R33/56509

    摘要： In an embodiment, a method includes processing magnetic resonance (MR) data according to a process including applying a density filter to blades of k-space data rotated about a section of k-space. Each blade may include a first set of encode lines weighted in a first signal weighting and a second set of encode lines weighted in a second signal weighting. The density filter may be configured to preferentially weight each blade in the first signal weighting to produce blades of weighted k-space data.

    摘要翻译： 在一个实施例中，一种方法包括根据一个过程来处理磁共振（MR）数据，所述过程包括将密度滤波器应用到围绕k空间的一部分旋转的k空间数据的叶片。 每个刀片可以包括在第一信号加权中加权的第一组编码线和在第二信号加权中加权的第二组编码线。 密度滤波器可以被配置为在第一信号加权中优先权重每个叶片以产生加权的k空间数据的叶片。

    INTRA-BLADE FILTER FOR MOTION CORRECTED MAGNETIC RESONANCE DATA
    4.
    发明申请
    INTRA-BLADE FILTER FOR MOTION CORRECTED MAGNETIC RESONANCE DATA 有权
    用于运动校正磁共振数据的内置滤波器

    公开(公告)号：US20140077813A1

    公开(公告)日：2014-03-20

    申请号：US13619110

    申请日：2012-09-14

    申请人： James Hartman Holmes ,  Philip James Beatty

    发明人： James Hartman Holmes ,  Philip James Beatty

    IPC分类号： G01R33/341 ,  G06K9/00

    CPC分类号： G01R33/5602 ,  G01R33/4824 ,  G01R33/56509

    摘要： In an embodiment, a method includes processing magnetic resonance (MR) data according to a process including applying a density filter to blades of k-space data rotated about a section of k-space. Each blade may include a first set of encode lines weighted in a first signal weighting and a second set of encode lines weighted in a second signal weighting. The density filter may be configured to preferentially weight each blade in the first signal weighting to produce blades of weighted k-space data.

    摘要翻译： 在一个实施例中，一种方法包括根据一个过程来处理磁共振（MR）数据，所述过程包括将密度滤波器应用到围绕k空间的一部分旋转的k空间数据的叶片。 每个刀片可以包括在第一信号加权中加权的第一组编码线和在第二信号加权中加权的第二组编码线。 密度滤波器可以被配置为在第一信号加权中优先权重每个叶片以产生加权的k空间数据的叶片。

    System and method for using parallel imaging with compressed sensing
    5.
    发明授权
    System and method for using parallel imaging with compressed sensing 有权
    使用压缩感测并行成像的系统和方法

    公开(公告)号：US07688068B2

    公开(公告)日：2010-03-30

    申请号：US12116067

    申请日：2008-05-06

    申请人： Philip James Beatty

    发明人： Philip James Beatty

    IPC分类号： G01V3/00

    CPC分类号： G01R33/5611 ,  A61B5/055 ,  G01R33/5619

    摘要： A system and method for combining parallel imaging and compressed sensing techniques to reconstruct an MR image includes a computer programmed to acquire undersampled MR data for a plurality of k-space locations that is less than an entirety of a k-space grid. The computer is further programmed to synthesize unacquired MR data by way of a parallel imaging technique for a portion of k-space location at which MR data was not acquired and apply a compressed sensing reconstruction technique to generate a reconstructed image from the acquired undersampled MR data and the synthesized unacquired data.

    摘要翻译： 用于组合并行成像和压缩感测技术以重构MR图像的系统和方法包括被编程为针对小于整个k空间网格的多个k空间位置获取欠采样MR数据的计算机。 计算机还被编程为通过并行成像技术对未获取MR数据的k空间位置的一部分合成无序MR数据，并应用压缩感测重建技术，以从所获取的欠采样MR数据生成重建图像 和合成的无序数据。

    System and method of parallel imaging with calibration to a separate coil
    6.
    发明授权
    System and method of parallel imaging with calibration to a separate coil 有权
    并行成像的系统和方法，通过校准到单独的线圈

    公开(公告)号：US07492153B2

    公开(公告)日：2009-02-17

    申请号：US11757571

    申请日：2007-06-04

    申请人： Anja C. S. Brau ,  Philip James Beatty ,  Dwight G. Nishimura

    发明人： Anja C. S. Brau ,  Philip James Beatty ,  Dwight G. Nishimura

    IPC分类号： G01V3/00

    CPC分类号： G01R33/5611

    摘要： An RF coil assembly includes a plurality of RF source coils and an RF target coil separate from the plurality of RF source coils. A computer is programmed to acquire MR data of an imaging object from each of the plurality of RF source coils and to acquire MR data of the imaging object from the RF target coil. The computer is further programmed to calculate a set of weights based on a relationship between MR data acquired from each RF source coil and MR data acquired from the RF target coil and to reconstruct an image based on an application of the set of weights to at least a portion of the MR data acquired from each of the plurality of RF source coils.

    摘要翻译： RF线圈组件包括多个RF源线圈和与多个RF源线圈分离的RF目标线圈。 计算机被编程为从多个RF源线圈中的每一个获取成像对象的MR数据，并从RF目标线圈获取成像对象的MR数据。 计算机还被编程为基于从每个RF源线圈获取的MR数据与从RF目标线圈获取的MR数据之间的关系来计算一组权重，并且基于该组权重的应用至少重构图像 从多个RF源线圈中的每一个获取的MR数据的一部分。

    System and method of parallel imaging with calibration to a virtual coil
    7.
    发明授权
    System and method of parallel imaging with calibration to a virtual coil 有权
    用虚拟线圈校准的并行成像系统和方法

    公开(公告)号：US08076938B2

    公开(公告)日：2011-12-13

    申请号：US12415948

    申请日：2009-03-31

    申请人： Anja C. S. Brau ,  Philip James Beatty

    发明人： Anja C. S. Brau ,  Philip James Beatty

    IPC分类号： G01V3/00

    CPC分类号： G01R33/5611

    摘要： A method for generating a magnetic resonance (MR) image includes acquiring calibration data from each of a plurality of RF source coils. Calibration data for a virtual coil is generated based on the calibration data from the plurality of RF source coils and a set of synthesis weights is generated based on the calibration data from the plurality of RF source coils and the calibration data for the virtual coil. Accelerated MR data is acquired from each of the plurality of RF source coils. An image can be reconstructed based on an application of the set of synthesis weights to the accelerated MR data from the plurality of RF source coils.

    摘要翻译： 用于产生磁共振（MR）图像的方法包括从多个RF源线圈中的每一个获取校准数据。 基于来自多个RF源线圈的校准数据生成虚拟线圈的校准数据，并且基于来自多个RF源线圈的校准数据和虚拟线圈的校准数据生成一组合成权重。 从多个RF源线圈中的每一个获取加速MR数据。 可以基于对来自多个RF源线圈的加速MR数据的合成权重集合的应用来重构图像。

    ACCELERATED PSEUDO-RANDOM DATA MAGENTIC RESONANCE IMAGING SYSTEM AND METHOD
    8.
    发明申请
    ACCELERATED PSEUDO-RANDOM DATA MAGENTIC RESONANCE IMAGING SYSTEM AND METHOD 有权
    加速PSEUDO随机数据磁共振成像系统及方法

    公开(公告)号：US20110241677A1

    公开(公告)日：2011-10-06

    申请号：US13051952

    申请日：2011-03-18

    申请人： Reed Frederick Busse ,  James Holmes ,  Philip James Beatty ,  Kang Wang ,  Frank Korosec

    发明人： Reed Frederick Busse ,  James Holmes ,  Philip James Beatty ,  Kang Wang ,  Frank Korosec

    IPC分类号： G01R33/44

    CPC分类号： G01R33/56308 ,  G01R33/4818 ,  G01R33/5611

    摘要： The present disclosure is intended to describe embodiments for improving image data acquisition and processing in accelerated dynamic magnetic resonance imaging sequences. One embodiment is described where a method includes an acquisition sequence configured to acquire an undersampled set of magnetic resonance data. The undersampled set of magnetic resonance data has a pseudo-random sampling pattern within a data space acquired at a first time, the pseudo-random sampling pattern being influenced by other pseudo-random sampling patterns within the data space arising from the acquisition of additional undersampled sets of magnetic resonance data at respective times. In some embodiments, the pseudo-random sampling patterns of the undersampled sets of magnetic resonance data interleave to yield a desired sampling pattern.

    摘要翻译： 本公开旨在描述用于改进加速动态磁共振成像序列中的图像数据采集和处理的实施例。 描述一个实施例，其中方法包括被配置为获取欠采样的磁共振数据集合的获取序列。 欠采样的磁共振数据集合在第一时间获取的数据空间内具有伪随机采样模式，伪随机采样模式受数据空间内的其他伪随机采样模式的影响，该模式由获得额外的欠采样 各磁共振数据组。 在一些实施例中，欠采样的磁共振数据组的伪随​​机采样模式交织以产生期望的采样模式。

    METHOD AND APPARATUS OF MULTI-COIL MR IMAGING WITH HYBRID SPACE CALIBRATION
    9.
    发明申请
    METHOD AND APPARATUS OF MULTI-COIL MR IMAGING WITH HYBRID SPACE CALIBRATION 有权
    多层次磁共振成像与混合空间校准的方法与装置

    公开(公告)号：US20090134872A1

    公开(公告)日：2009-05-28

    申请号：US12363346

    申请日：2009-01-30

    申请人： Anja C.S. Brau ,  Philip James Beatty ,  Stefan Skare ,  Roland Bammer

    发明人： Anja C.S. Brau ,  Philip James Beatty ,  Stefan Skare ,  Roland Bammer

    IPC分类号： G01R33/48

    CPC分类号： G01R33/5611

    摘要： The present invention provides a system and method for parallel imaging that performs auto-calibrating reconstructions with a 2D (for 2D imaging) or 3D kernel (for 3D imaging) that exploits the computational efficiencies available when operating in certain data “domains” or “spaces”. The reconstruction process of multi-coil data is separated into a “training phase” and an “application phase” in which reconstruction weights are applied to acquired data to synthesize (replace) missing data. The choice of data space, i.e., k-space, hybrid space, or image space, in which each step occurs is independently optimized to reduce total reconstruction time for a given imaging application. As such, the invention retains the image quality benefits of using a 2D k-space kernel without the computational burden of applying a 2D k-space convolution kernel.

    摘要翻译： 本发明提供了一种用于并行成像的系统和方法，其使用2D（用于2D成像）或3D内核（用于3D成像）执行自动校准重建，其利用在某些数据“域”或“空间”中操作时可用的计算效率 “。 多线圈数据的重构过程分为“训练阶段”和“应用阶段”，其中重建权重应用于获取的数据以合成（替换）丢失的数据。 每个步骤发生的数据空间的选择，即k空间，混合空间或图像空间被独立地优化以减少给定成像应用的总重构时间。 因此，本发明保留了使用2D k空间内核的图像质量优点，而没有应用2D k空间卷积内核的计算负担。

    Efficient method for performing K-space channel combination for non-cartesian MRI acquisitions
    10.
    发明授权
    Efficient method for performing K-space channel combination for non-cartesian MRI acquisitions 有权
    用于执行非笛卡尔MRI采集的K空间通道组合的高效方法

    公开(公告)号：US09389292B2

    公开(公告)日：2016-07-12

    申请号：US14501323

    申请日：2014-09-30

    申请人： Philip James Beatty

    发明人： Philip James Beatty

    IPC分类号： G01R33/561 ,  G01R33/48

    CPC分类号： G01R33/5611 ,  G01R33/4824

    摘要： A system and method for combining k-space data acquired on multiple different receiver channels in a multichannel receiver is provided. One or more convolution kernels are used to combine the k-space data. Each convolution kernel is designed as the combination of one or more channel combination kernels and an alias-suppressing kernel. The channel combination kernels are designed to have a smaller sample spacing than the acquired data, and the alias-suppressing kernel is designed to suppress aliasing artifacts in stopbands defined by the sample spacing of the channel combination kernels.

    摘要翻译： 提供一种用于组合在多通道接收器中的多个不同接收机通道上获取的k空间数据的系统和方法。 一个或多个卷积内核用于组合k空间数据。 每个卷积核被设计为一个或多个信道组合内核和别名抑制内核的组合。 通道组合内核被设计为具有比采集的数据更小的采样间隔，并且别名抑制内核被设计为抑制由通道组合内核的采样间隔定义的阻带中的混叠伪像。