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1.发明申请IMAGE CORRECTION USING MULTICHANNEL BLIND DECONVOLUTION WITH HOMOMORPHIC FILTERING 有权使用多通道盲解卷积与均匀滤波的图像校正公开(公告)号：US20130281822A1
公开(公告)日：2013-10-24
申请号：US13451239
申请日：2012-04-19
IPC分类号： A61B5/055
CPC分类号： A61B5/055
摘要： A method includes obtaining a plurality of magnetic resonance (MR) coil images of a subject of interest, each MR coil image being generated from one of an array of MR receiving coils; combining the plurality of coil images to generate an image estimate of the subject of interest; performing a multichannel blind deconvolution (MBD) process including: deriving coil sensitivity information for every one of the array of MR receiving coils based on the image estimate or a filtered image estimate derived from the image estimate; updating the image estimate or the filtered image estimate using the derived coil sensitivity information to generate an updated image estimate; and applying a homomorphic filter to the image estimate to derive the filtered image estimate, or to the updated image estimate to derive a filtered updated image estimate, or a combination thereof.
摘要翻译： 一种方法包括获得感兴趣对象的多个磁共振（MR）线圈图像，每个MR线圈图像从MR接收线圈的阵列之一产生; 组合多个线圈图像以产生感兴趣对象的图像估计; 执行多通道盲解卷积（MBD）处理，包括：基于所述图像估计或从所述图像估计导出的滤波图像估计，导出所述MR接收线圈阵列中的每一个的线圈灵敏度信息; 使用导出的线圈灵敏度信息来更新图像估计或滤波图像估计以产生更新的图像估计; 以及将同态滤波器应用于所述图像估计以导出所述滤波图像估计，或对所述更新的图像估计来推导滤波的更新图像估计，或其组合。
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2.发明授权Image correction using multichannel blind deconvolution with homomorphic filtering 有权使用具有同态滤波的多通道盲解卷积的图像校正公开(公告)号：US08868153B2
公开(公告)日：2014-10-21
申请号：US13451239
申请日：2012-04-19
CPC分类号： A61B5/055
摘要： A method includes obtaining a plurality of magnetic resonance (MR) coil images of a subject of interest, each MR coil image being generated from one of an array of MR receiving coils; combining the plurality of coil images to generate an image estimate of the subject of interest; performing a multichannel blind deconvolution (MBD) process including: deriving coil sensitivity information for every one of the array of MR receiving coils based on the image estimate or a filtered image estimate derived from the image estimate; updating the image estimate or the filtered image estimate using the derived coil sensitivity information to generate an updated image estimate; and applying a homomorphic filter to the image estimate to derive the filtered image estimate, or to the updated image estimate to derive a filtered updated image estimate, or a combination thereof.
摘要翻译： 一种方法包括获得感兴趣对象的多个磁共振（MR）线圈图像，每个MR线圈图像从MR接收线圈的阵列之一产生; 组合多个线圈图像以产生感兴趣对象的图像估计; 执行多通道盲解卷积（MBD）处理，包括：基于所述图像估计或从所述图像估计导出的滤波图像估计，导出所述MR接收线圈阵列中的每一个的线圈灵敏度信息; 使用导出的线圈灵敏度信息来更新图像估计或滤波图像估计以产生更新的图像估计; 以及将同态滤波器应用于所述图像估计以导出所述滤波图像估计，或对所述更新的图像估计来推导滤波的更新图像估计，或其组合。
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3.发明授权Measuring diffusional anisotropy of ODF lobes having maxima peaks and minima troughs with diffusion weighted MRI 有权测量具有扩散加权MRI的具有最大峰值和最小波谷的ODF瓣的扩散各向异性公开(公告)号：US09255979B2
公开(公告)日：2016-02-09
申请号：US13444685
申请日：2012-04-11
IPC分类号： G01R33/563
CPC分类号： G01R33/56341
摘要： A method for measuring diffusional anisotropy in diffusion-weighted magnetic resonance imaging. The method includes determining an orientation diffusion function (ODF) for one or more fibers within a single voxel, wherein the ODF includes lobes representative of a probability of diffusion in a given direction for the one or more fibers. The method also includes characterizing an aspect ratio of the lobes. The method further includes determining a multi-directional anisotropy metric for the one or more fibers based on the aspect ratio of the lobes.
摘要翻译： 扩散加权磁共振成像中扩散各向异性的测量方法。 该方法包括确定单个体素内的一个或多个纤维的取向扩散函数（ODF），其中ODF包括代表一个或多个纤维在给定方向上的扩散概率的裂片。 该方法还包括表征凸角的纵横比。 所述方法还包括基于所述叶的宽高比来确定所述一个或多个光纤的多方向各向异性度量。
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公开(公告)号：US20130271130A1
公开(公告)日：2013-10-17
申请号：US13444685
申请日：2012-04-11
IPC分类号： G01R33/48
CPC分类号： G01R33/56341
摘要： A method for measuring diffusional anisotropy in diffusion-weighted magnetic resonance imaging. The method includes determining an orientation diffusion function (ODF) for one or more fibers within a single voxel, wherein the ODF includes lobes representative of a probability of diffusion in a given direction for the one or more fibers. The method also includes characterizing an aspect ratio of the lobes. The method further includes determining a multi-directional anisotropy metric for the one or more fibers based on the aspect ratio of the lobes.
摘要翻译： 扩散加权磁共振成像中扩散各向异性的测量方法。 该方法包括确定单个体素内的一个或多个纤维的取向扩散函数（ODF），其中ODF包括代表一个或多个纤维在给定方向上的扩散概率的裂片。 该方法还包括表征凸角的纵横比。 所述方法还包括基于所述叶的宽高比来确定所述一个或多个光纤的多方向各向异性度量。
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公开(公告)号：US09453894B2
公开(公告)日：2016-09-27
申请号：US13484934
申请日：2012-05-31
IPC分类号： A61B5/055 , G01R33/34 , G01R33/3415
CPC分类号： G01R33/34007 , A61B5/055 , G01R33/34084 , G01R33/3415
摘要： An imaging system is presented. The imaging system includes a storage structure that stores a first sheet of coils inside a cradle, wherein the storage structure includes a plurality of first set of rotatable bodies and a plurality of second set of rotatable bodies, and a plurality of springs that are coupled to one or more of the plurality of second set of rotatable bodies, wherein the first sheet of coils is disposed around the plurality of first set of rotatable bodies, the plurality of second set of rotatable bodies and the plurality of springs, and wherein a first end of the first sheet of coils protrudes out of the cradle.
摘要翻译： 提出了一种成像系统。 成像系统包括存储结构，其将第一片线圈存储在支架内，其中所述存储结构包括多个第一组旋转体和多个第二组旋转体，以及多个弹簧，其耦合到 多个第二组旋转体中的一个或多个，其中所述第一片线圈围绕所述多个第一组旋转体，所述多个第二组旋转体和所述多个弹簧设置，并且其中第一端 的第一片线圈从支架突出出来。
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公开(公告)号：US09250305B2
公开(公告)日：2016-02-02
申请号：US13484816
申请日：2012-05-31
IPC分类号： G01R33/34 , G01R33/3415 , H01F5/00 , H01F17/00
CPC分类号： G01R33/34084 , G01R33/34007 , G01R33/3415 , H01F5/003 , H01F2017/006 , Y10T29/49073
摘要： An imaging system is presented. The imaging system includes a cradle, and a first sheet of coils disposed inside of the cradle such that a first end of the first sheet of coils protrudes out of the cradle and a second end of the first sheet of coils is coupled to a structure, wherein a requisite expanse of the first sheet of coils is flexibly pulled out from the cradle by pulling the first end.
摘要翻译： 提出了一种成像系统。 成像系统包括支架，以及布置在托架内部的第一片线圈，使得第一片线圈的第一端突出到支架之外，并且第一片线圈的第二端联接到结构， 其中通过拉动所述第一端部将所述第一片线圈的必要的宽度从所述支架中灵活地拉出。
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7.发明授权Photonic system and method for optical data transmission in medical imaging systems 有权医学影像系统中光学数据传输的光子系统及方法公开(公告)号：US08847598B2
公开(公告)日：2014-09-30
申请号：US13179298
申请日：2011-07-08
CPC分类号： H04B10/801 , A61B6/566 , A61B8/56 , G06F19/00 , G06F19/321 , H04J14/0298
摘要： A photonic system and method for optical data transmission in medical imaging system are provided. One photonic system includes a plurality of optical modulators having different optical resonance wavelengths and configured to receive electrical signals representative of a set of data from a medical imaging device. The photonic system also includes an optical waveguide interfacing with the plurality of optical modulators and configured to transmit an amplitude modulated beam of light at different frequencies to selectively modulate the plurality of optical modulators to transmit an encoded beam of light. The photonic system further includes receiver opto-electronics in communication with the optical waveguide configured to decode the encoded beam of light and convert the decoded beam of light into the electrical signals representative of the set of data.
摘要翻译： 提供了一种用于医学成像系统中光学数据传输的光子系统和方法。 一个光子系统包括具有不同光学共振波长的多个光学调制器，并且被配置为从医学成像设备接收表示一组数据的电信号。 光子系统还包括与多个光学调制器接口的光波导，并被配置为以不同的频率发射幅度调制的光束，以选择性地调制多个光学调制器以发射编码的光束。 光子系统还包括与光波导通信的接收器光电子器件，其被配置为对编码的光束进行解码，并将解码的光束转换成代表该组数据的电信号。
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公开(公告)号：US08768095B2
公开(公告)日：2014-07-01
申请号：US12541550
申请日：2009-08-14
CPC分类号： G06K9/6232 , G06K9/0057
摘要： A signal processing method is provided. The signal processing method includes the steps of generating undersampled data corresponding to an object, determining a variable thresholding parameter based on a composition of the undersampled data, and iteratively determining thresholded coefficients to generate a plurality of coefficients by utilizing the undersampled data, a current solution and the variable thresholding parameter by updating the variable thresholding parameter and the current solution, and reconstructing a data signal using the plurality of coefficients.
摘要翻译： 提供信号处理方法。 信号处理方法包括以下步骤：产生与对象相对应的欠采样数据，基于欠采样数据的组合确定可变阈值参数，以及迭代确定阈值系数以通过利用欠采样数据产生多个系数，当前解 以及可变阈值参数，通过更新可变阈值参数和当前解，并且使用多个系数重构数据信号。
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9.发明申请Concurrent Acquisition of PET Fields During Acquisition of a MRI Field of View 有权在获取MRI视野的同时获取PET领域公开(公告)号：US20140005520A1
公开(公告)日：2014-01-02
申请号：US13539240
申请日：2012-06-29
CPC分类号： A61B5/0035 , A61B5/055 , A61B6/037 , A61B6/4417 , G01R33/481 , G01R33/4824 , G01R33/483 , G01R33/546 , G01R33/56383
摘要： Exemplary embodiments are directed to acquiring multiple sets of positron emission tomography (PET) data for different areas of a subject concurrently with acquiring portions of a single magnetic resonance field of view. Positron emission tomography (PET) images and magnetic resonance (MR) images can be acquired using a combined PET-MRI scanner, wherein, for example, a first portion of MR data from a MR field of view can be acquired concurrently with a first acquisition of PET data, a position of the MR field of view can be adjusted in response to a change in a location of a bed in the combined PET-MRI scanner, and a second portion of MR data from the MR field of view can be acquired concurrently with a second acquisition of PET data.
摘要翻译： 示例性实施例涉及在获取单个磁共振视野的部分的同时获取对象的不同区域的多组正电子发射断层摄影（PET）数据。 可以使用组合的PET-MRI扫描仪获取正电子发射断层摄影（PET）图像和磁共振（MR）图像，其中，例如，可以与第一次采集同时获取来自MR视野的MR数据的第一部分 的PET数据，可以响应于组合的PET-MRI扫描仪中的床的位置的变化来调整MR视场的位置，并且可以获取来自MR视场的MR数据的第二部分 同时第二次获取PET数据。
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公开(公告)号：US07809423B2
公开(公告)日：2010-10-05
申请号：US11246725
申请日：2005-10-06
IPC分类号： A61B5/05
CPC分类号： G01R33/5635 , G01R33/4824 , G01R33/56308 , G01R33/56509 , G01R33/5676
摘要： A method for acquiring image data from a subject during a scan with a Magnetic Resonance Imaging (MRI) system comprising the steps of acquiring a reference data set of a region of interest, acquiring a plurality of free-breathing data sets, and, selectively processing the plurality of free-breathing data sets in comparison with the reference data set to be used in creating an image of the region of interest. The reference data set comprises breath-held data set or, alternatively, free-breathing data.
摘要翻译： 一种用于在使用磁共振成像（MRI）系统的扫描期间从被摄体获取图像数据的方法，包括以下步骤：获取感兴趣区域的参考数据集，获取多个自由呼吸数据集，以及选择性处理 多个自由呼吸数据集与用于创建感兴趣区域的图像的参考数据组相比较。 参考数据集包括呼吸数据集，或者替代地，自由呼吸数据。
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