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    Diffusion spectrum imaging systems and methods
    1.
    发明授权
    Diffusion spectrum imaging systems and methods 有权

    公开(公告)号：US09720063B2

    公开(公告)日：2017-08-01

    申请号：US13718119

    申请日：2012-12-18

    申请人： General Electric Company

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

    IPC分类号： G01R33/563

    CPC分类号： G01R33/56341

    摘要： Systems and methods for generating a magnetic resonance (MR) image of a tissue are provided. A method includes acquiring MR raw data. The MR raw data corresponds to MR signals obtained at undersampled q-space locations for a plurality of q-space locations that is less than an entirety of the q-space locations and the MR signals at the q-space locations represent the three dimensional displacement distribution of the spins in the imaging voxel. The method also includes performing a joint image reconstruction technique on the MR raw data to exploit structural correlations in the MR signals to obtain a series of accelerated MR images and performing, for each image pixel in each accelerated MR image of the series of accelerated MR images, a compressed sensing reconstruction technique to exploit q-space signal sparsity to identify a plurality of diffusion maps.

    SYSTEMS AND METHODS FOR IMAGE SEGMENTATION USING A DEFORMABLE ATLAS
    2.
    发明申请
    SYSTEMS AND METHODS FOR IMAGE SEGMENTATION USING A DEFORMABLE ATLAS 有权
    使用可变图案进行图像分割的系统和方法

    公开(公告)号：US20150086096A1

    公开(公告)日：2015-03-26

    申请号：US14032877

    申请日：2013-09-20

    申请人： General Electric Company

    发明人： Xiaofeng Liu ,  Albert Montillo ,  Ek Tsoon Tan ,  John F. Schenck

    IPC分类号： G06T7/00

    CPC分类号： G06T7/0089 ,  G06T7/11 ,  G06T7/149 ,  G06T2207/10088 ,  G06T2207/20128 ,  G06T2207/30016

    摘要： Systems and methods for image segmentation using a deformable atlas are provided. One method includes obtaining one or more target images, obtaining one or more propagated label probabilities for the one or more target images, and segmenting the one or more target images using a cost function of a deformable atlas model. The method further includes identifying segmented structures within the one or more target images based on the segmented one or more target images.

    摘要翻译： 提供了使用可变形图案的图像分割的系统和方法。 一种方法包括获得一个或多个目标图像，为一个或多个目标图像获得一个或多个传播的标签概率，以及使用可变形图集模型的成本函数对一个或多个目标图像进行分割。 该方法还包括基于分割的一个或多个目标图像来识别所述一个或多个目标图像内的分段结构。

    DIFFUSION SPECTRUM IMAGING SYSTEMS AND METHODS
    3.
    发明申请
    DIFFUSION SPECTRUM IMAGING SYSTEMS AND METHODS 有权
    扩散光谱成像系统和方法

    公开(公告)号：US20140167753A1

    公开(公告)日：2014-06-19

    申请号：US13718119

    申请日：2012-12-18

    申请人： GENERAL ELECTRIC COMPANY

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

    IPC分类号： G01R33/48

    CPC分类号： G01R33/56341

    摘要： Systems and methods for generating a magnetic resonance (MR) image of a tissue are provided. A method includes acquiring MR raw data. The MR raw data corresponds to MR signals obtained at undersampled q-space locations for a plurality of q-space locations that is less than an entirety of the q-space locations and the MR signals at the q-space locations represent the three dimensional displacement distribution of the spins in the imaging voxel. The method also includes performing a joint image reconstruction technique on the MR raw data to exploit structural correlations in the MR signals to obtain a series of accelerated MR images and performing, for each image pixel in each accelerated MR image of the series of accelerated MR images, a compressed sensing reconstruction technique to exploit q-space signal sparsity to identify a plurality of diffusion maps.

    摘要翻译： 提供了用于产生组织的磁共振（MR）图像的系统和方法。 一种方法包括获取MR原始数据。 MR原始数据对应于在低于q空间位置的整体的多个q空间位置处在欠采样q空间位置处获得的MR信号，并且在q空间位置处的MR信号表示三维位移 旋转成像体素的分布。 该方法还包括对MR原始数据执行联合图像重建技术以利用MR信号中的结构相关性，以获得一系列加速MR图像，并针对一系列加速MR图像的每个加速MR图像中的每个图像像素执行 ，一种利用q空间信号稀疏度来识别多个扩散图的压缩感测重建技术。

    System and method for medical image correction
    5.
    发明授权
    System and method for medical image correction 有权

    公开(公告)号：US09953397B2

    公开(公告)日：2018-04-24

    申请号：US14478597

    申请日：2014-09-05

    申请人： General Electric Company

    发明人： Ek Tsoon Tan ,  Xiaofeng Liu ,  Dan Xu

    IPC分类号： G06K9/00 ,  A61B5/0436 ,  G06T3/00 ,  A61B5/055 ,  G06T5/00 ,  G06T7/32

    CPC分类号： G06T3/00 ,  A61B5/055 ,  G06T5/006 ,  G06T7/32 ,  G06T2207/10088

    摘要： A method implemented using at least one processor includes receiving a target image and a reference image. The target image is a distorted magnetic resonance image and the reference image is an undistorted magnetic resonance image. The method further includes selecting an image registration method for registering the target image to the reference image, wherein the image registration method uses an image transformation. The method further includes performing image registration of the target image with the reference image, wherein the image registration provides a plurality of optimized parameters of the image transformation. The method also includes generating a corrected image based on the target image and the plurality of optimized parameters of the image transformation.

    SYSTEMS AND METHODS FOR COMPRESSED SENSING FOR MULTI-SHELL MAGNETIC RESONANCE IMAGING
    8.
    发明申请
    SYSTEMS AND METHODS FOR COMPRESSED SENSING FOR MULTI-SHELL MAGNETIC RESONANCE IMAGING 有权
    用于多小波磁共振成像的压缩感测系统和方法

    公开(公告)号：US20150310640A1

    公开(公告)日：2015-10-29

    申请号：US14261623

    申请日：2014-04-25

    申请人： General Electric Company

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

    IPC分类号： G06T11/00 ,  G06T7/00

    CPC分类号： G06T11/006 ,  G01R33/4826 ,  G01R33/5611 ,  G01R33/56341 ,  G06T7/0012 ,  G06T2207/10088 ,  G06T2207/20056

    摘要： 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.

    摘要翻译： 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。