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    System and Method for Inductively Communicating Data
    21.
    发明申请
    System and Method for Inductively Communicating Data 有权
    电感数据通信系统与方法

    公开(公告)号：US20140091791A1

    公开(公告)日：2014-04-03

    申请号：US13629636

    申请日：2012-09-28

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Selaka Bandara Bulumulla ,  Christopher Judson Hardy ,  Karthikeyan Veeraswamy Sathyamurthy

    IPC: G01R33/3415 ,  G01R33/54

    CPC classification number: G01R33/3642 ,  G01R33/3415 ,  G01R33/3692

    Abstract: A system for inductively communicating signals in a magnetic resonance imaging system is presented. The system includes first array of primary coils configured to acquire data from a patient positioned on a patient cradle. Furthermore, the system includes a second array of secondary coils operatively coupled to the first array of primary coils. Moreover, the system includes a third array of tertiary coils disposed at a determined distance from the second array of secondary coils. In addition, the system includes a tuning unit operatively coupled to the third array of tertiary coils by a cable having a quarter-wave electrical wavelength and configured to control the first array of primary coils through impedance transformation, where the second array of secondary coils is configured to inductively communicate the acquired data to the third array of tertiary coils.

    Abstract translation: 提出了一种用于在磁共振成像系统中感应地传达信号的系统。 该系统包括被配置为从位于病人支架上的患者获取数据的第一阵列的初级线圈。 此外，该系统包括可操作地耦合到第一初级线圈阵列的次级线圈的第二阵列。 此外，该系统包括第三阵列的三级线圈，其布置在与第二阵列的次级线圈确定的距离处。 另外，该系统包括调谐单元，该调谐单元通过具有四分之一波电波长的电缆可操作地耦合到第三阵列的第三线圈，并被配置为通过阻抗变换来控制第一阵列的初级线圈，其中第二阵列的次级线圈是 被配置为将获取的数据感应地传送到第三线圈的第三阵列。

    System and method for sparse image reconstruction utilizing null data consistency
    22.
    发明授权
    System and method for sparse image reconstruction utilizing null data consistency 有权

    公开(公告)号：US11175365B2

    公开(公告)日：2021-11-16

    申请号：US16150079

    申请日：2018-10-02

    Applicant: General Electric Company

    Inventor： Christopher Judson Hardy ,  Itzik Malkiel

    IPC: G01R33/561 ,  G01R33/56 ,  G06T7/00

    Abstract: A method is provided that includes acquiring coil data from a magnetic resonance imaging device. The coil data includes undersampled k-space data. The method includes processing the coil data using an image reconstruction technique to generate an initial undersampled image. The method includes generating a reconstructed image based on the coil data, the initial undersampled image, and multiple iterative blocks of a residual deep-learning image reconstruction network. A first iterative block of the residual deep-learning image reconstruction network receives the initial undersampled image. Each of the multiple iterative blocks includes a data-consistency unit that preserves the fidelity of the coil data in a respective output of a respective iterative block utilizing zeroed data consistency. The initial undersampled image is added to an output of the last iterative block via a residual connection. The residual deep-learning image reconstruction network is a neural network trained using previously acquired coil data.

    Generalized spherical deconvolution in diffusion magnetic resonance imaging
    23.
    发明授权
    Generalized spherical deconvolution in diffusion magnetic resonance imaging 有权

    公开(公告)号：US10324154B2

    公开(公告)日：2019-06-18

    申请号：US14711650

    申请日：2015-05-13

    Applicant: General Electric Company

    Inventor： Jonathan Immanuel Sperl ,  Christopher Judson Hardy ,  Luca Marinelli ,  Marion Irene Menzel ,  Ek Tsoon Tan

    IPC: G01R33/56 ,  G01R33/563

    Abstract: A magnetic resonance imaging method includes generating spatially resolved fiber orientation distributions (FODs) from magnetic resonance signals acquired from a patient tissue using a plurality of diffusion encodings, each acquired magnetic resonance signal corresponding to one of the diffusion encodings and being representative of a three-dimensional distribution of displacement of magnetic spins of gyromagnetic nuclei present in each imaging voxel. Generating the spatially resolved FODs includes performing generalized spherical deconvolution using the acquired magnetic resonance signals and a modeled tissue response matrix (TRM) to reconstruct the spatially resolved FODs. The method also includes using the spatially resolved FODs to generate a representation of fibrous tissue within the patient tissue.

    Systems and methods for compressed sensing for multi-shell magnetic resonance imaging
    26.
    发明授权
    Systems and methods for compressed sensing for multi-shell magnetic resonance imaging 有权
    用于多壳磁共振成像的压缩感测系统和方法

    公开(公告)号：US09208587B2

    公开(公告)日：2015-12-08

    申请号：US14261623

    申请日：2014-04-25

    Applicant: General Electric Company

    Inventor： Christopher Judson Hardy ,  Luca Marinelli ,  Marion Irene Menzel ,  Ek Tsoon Tan ,  Jonathan Immanuel Sperl

    IPC: G06K9/00 ,  G06T11/00 ,  G06T7/00

    CPC classification number: G06T11/006 ,  G01R33/4826 ,  G01R33/5611 ,  G01R33/56341 ,  G06T7/0012 ,  G06T2207/10088 ,  G06T2207/20056

    Abstract: A method of compressed sensing for multi-shell magnetic resonance imaging includes obtaining magnetic resonance imaging data, the data being sampled along multi-shell spherical coordinates, the spherical coordinates coincident with a plurality of spokes that converge at an origin, constructing a symmetric shell for each respective sampled multi-shell to create a combined set of data, performing a three-dimensional Fourier transform on the combined set of data to reconstruct an image, and de-noising the reconstructed image by iteratively applying a sparsifying transform on non-sampled data points of neighboring shells. The method can also include randomly under-sampling the imaging data to create missing data points. A system configured to implement the method and a non-transitory computer readable medium are also disclosed.

    Abstract translation: 一种用于多壳磁共振成像的压缩感测方法包括：获得磁共振成像数据，所述数据沿着多壳球面坐标进行采样，所述球面坐标与在原点收敛的多个辐条重合，构成对称壳体 每个相应的采样多壳以产生一组组合数据，对该组合数据进行三维傅里叶变换以重构图像，并通过对非采样数据迭代地应用稀疏变换来对重构图像进行去噪 相邻炮弹点。 该方法还可以包括随机对取样数据进行低采样以创建丢失的数据点。 还公开了一种被配置为实现该方法的系统和一种非暂时计算机可读介质。

    MAGNETIC RESONANCE IMAGING DATA CORRECTION METHODS AND SYSTEMS
    27.
    发明申请
    MAGNETIC RESONANCE IMAGING DATA CORRECTION METHODS AND SYSTEMS 有权
    磁共振成像数据校正方法和系统

    公开(公告)号：US20140312897A1

    公开(公告)日：2014-10-23

    申请号：US13866820

    申请日：2013-04-19

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Ek Tsoon Tan ,  Christopher Judson Hardy ,  Kevin Franklin King ,  Zachary William Slavens ,  Luca Marinelli ,  Robert Marc Lebel

    IPC: G01R33/565

    CPC classification number: G01R33/56581 ,  G01R33/56341 ,  G01R33/56572

    Abstract: Systems and methods for correcting magnetic resonance (MR) data are provided. One method includes receiving the MR data and correcting errors present in the MR data due to non-uniformities in magnetic field gradients used to generate the diffusion weighted MR signals. The method also includes correcting errors present in the MR data due to concomitant gradient fields present in the magnetic field gradients by using one or more gradient terms. At least one of the gradient terms is corrected based on the correction of errors present in the MR data due to the non-uniformities in the magnetic field gradients.

    Abstract translation: 提供了用于校正磁共振（MR）数据的系统和方法。 一种方法包括由于用于产生扩散加权MR信号的磁场梯度中的不均匀性，接收MR数据并校正MR数据中存在的错误。 该方法还包括通过使用一个或多个梯度项来校正存在于磁场梯度中的伴随的梯度场的MR数据中存在的误差。 由于磁场梯度中的不均匀性，基于MR数据中存在的误差的校正来校正至少一个梯度项。

    COMPLEX RECONSTRUCTION OF Q-SPACE FOR SIMULTANEOUS DETECTION OF COHERENT AND INCOHERENT MOTION
    28.
    发明申请
    COMPLEX RECONSTRUCTION OF Q-SPACE FOR SIMULTANEOUS DETECTION OF COHERENT AND INCOHERENT MOTION 有权
    复杂重建Q空间同时检测相干运动

    公开(公告)号：US20140185894A1

    公开(公告)日：2014-07-03

    申请号：US13728871

    申请日：2012-12-27

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Marion Irene Menzel ,  Christopher Judson Hardy ,  Kevin Franklin King ,  Luca Marinelli ,  Ek Tsoon Tan ,  Jonathan Immanuel Sperl

    IPC: G06T7/00

    CPC classification number: G01R33/56341

    Abstract: A magnetic resonance (MR) imaging method includes acquiring MR signals having phase and magnitude at q-space locations using a diffusion sensitizing pulse sequence performed on a tissue of interest, wherein the acquired signals each include a set of complex Fourier encodings representing a three-dimensional displacement distribution of the spins in a q-space location. The signals each include information relating to coherent motion and incoherent motion in the q-space location. The method also includes determining a contribution by coherent motion to the phase of the acquired MR signals; removing the phase contribution attributable to coherent motion from the acquired MR signals to produce a complex data set for each q-space location and an image of velocity components for each q-space location; and producing a three-dimensional velocity image from the image of the velocity components.

    Abstract translation: 磁共振（MR）成像方法包括使用在感兴趣的组织上执行的扩散增感脉冲序列获取在q空间位置具有相位和幅度的MR信号，其中所获取的信号各自包括一组代表三维空间的复数傅里叶编码， 在q空间位置的自旋的三维位移分布。 每个信号包括与q空间位置中的相干运动和非相干运动有关的信息。 该方法还包括通过相干运动确定所获取的MR信号的相位的贡献; 从所获取的MR信号去除归因于相干运动的相位贡献，以产生用于每个q空间位置的复数数据集和用于每个q空间位置的速度分量的图像; 并根据速度分量的图像产生三维速度图像。

    METHOD AND APPARATUS FOR AUTOMATED TRACKING OF VESSEL MOVEMENT USING MR IMAGING
    29.
    发明申请
    METHOD AND APPARATUS FOR AUTOMATED TRACKING OF VESSEL MOVEMENT USING MR IMAGING 有权
    使用MR成像自动跟踪船舶运动的方法和装置

    公开(公告)号：US20130131492A1

    公开(公告)日：2013-05-23

    申请号：US13746983

    申请日：2013-01-22

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Manojkumar Saranathan ,  Christopher Judson Hardy ,  Thomas Kwok-Fah Foo

    IPC: A61B5/055

    CPC classification number: G01R33/56509 ,  A61B5/0037 ,  A61B5/055 ,  A61B5/7285 ,  G01R33/56 ,  G01R33/5673

    Abstract: A system and method is disclosed for tracking a moving object using magnetic resonance imaging. The technique includes acquiring a scout image scan having a number of image frames and extracting non-linear motion parameters from the number of image frames of the scout image scan. The technique includes prospectively shifting slice location using the non-linear motion parameters between slice locations while acquiring a series of MR images. The system and method are particularly useful in tracking coronary artery movement during the cardiac cycle to acquire the non-linear components of coronary artery movement during a diastolic portion of the R-R interval.

    Abstract translation: 公开了一种使用磁共振成像跟踪运动物体的系统和方法。 该技术包括获取具有多个图像帧的侦察图像扫描，并从侦察图像扫描的图像帧的数量中提取非线性运动参数。 该技术包括使用切片位置之间的非线性运动参数前进移位切片位置，同时获取一系列MR图像。 该系统和方法在心脏周期期间跟踪冠状动脉运动特别有用，以在R-R间期的舒张期期间获得冠状动脉运动的非线性分量。

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