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    Dynamic Image Reconstruction with Tight Frame Learning
    11.
    发明申请
    Dynamic Image Reconstruction with Tight Frame Learning 有权
    动态图像重建与紧帧学习

    公开(公告)号：US20140097845A1

    公开(公告)日：2014-04-10

    申请号：US14027451

    申请日：2013-09-16

    申请人： Jun Liu ,  Qiu Wang ,  Mariappan Nadar ,  Michael Zenge ,  Edgar Mueller

    发明人： Jun Liu ,  Qiu Wang ,  Mariappan Nadar ,  Michael Zenge ,  Edgar Mueller

    IPC分类号： G01R33/48 ,  G06T5/50

    CPC分类号： G01R33/4818 ,  G01R33/5611 ,  G06T5/50

    摘要： A computer-implemented method for learning a tight frame includes acquiring undersampled k-space data over a time period using an interleaved process. An average of the undersampled k-space data is determined and a reference image is generated based on the average of the undersampled k-space data. Next, a tight frame operator is determined based on the reference image. Then, a reconstructed image data is generated from the undersampled k-space data via a sparse reconstruction which utilizes the tight frame operator.

    摘要翻译： 用于学习紧帧的计算机实现的方法包括使用交错处理在一段时间内获取欠采样的k空间数据。 确定欠采样的k空间数据的平均值，并且基于欠采样的k空间数据的平均值生成参考图像。 接下来，基于参考图像确定紧帧运算符。 然后，通过使用紧帧运算符的稀疏重构，从欠采样的k空间数据生成重建的图像数据。

    Medical imaging device and method to evaluate a test bolus image series
    16.
    发明授权
    Medical imaging device and method to evaluate a test bolus image series 失效
    医学成像装置和方法来评估测试推注图像系列

    公开(公告)号：US08483455B2

    公开(公告)日：2013-07-09

    申请号：US12732555

    申请日：2010-03-26

    申请人： Thomas Blum ,  Michaela Schmidt ,  Peter Schmitt ,  Michael Zenge

    发明人： Thomas Blum ,  Michaela Schmidt ,  Peter Schmitt ,  Michael Zenge

    IPC分类号： G06K9/00

    CPC分类号： G01R33/5635 ,  A61B5/055 ,  A61B5/7207

    摘要： In a method and device to evaluate a time series of in particular two-dimensional images of a contrast agent flow in at least one blood vessel of the human body within the scope of a test bolus measurement, wherein the acquisition of the time series begins with administration of the contrast agent, the time series of two-dimensional images or a time series of images derived from this is used as a time series of evaluation images, and in at least one evaluation image exhibiting a contrast agent signal, at least one point associated with a blood vessel is determined semi-automatically or automatically and transferred to further evaluation images. For every blood vessel discovered in this way, a temporal contrast agent course curve is determined (in particular via a fit) automatically from the image signal of the evaluation images at the at least one point and/or in a region around the marked point in the blood vessel and at least one item of contrast agent information that affects the temporal workflow of a subsequent measurement is determined from at least one contrast agent course curve.

    摘要翻译： 在用于在测试推注测量范围内评估人体至少一个血管中的造影剂流的特定二维图像的时间序列的方法和装置中，其中时间序列的获取开始于 使用对比剂的施用，二维图像的时间序列或由此导出的图像的时间序列作为评价图像的时间序列，并且在至少一个呈现造影剂信号的评价图像中，至少一个点 半自动或自动地确定与血管相关联，并转移到另外的评估图像。 对于以这种方式发现的每个血管，在评估图像的图像信号的至少一点和/或周围的标记点周围的区域中自动地确定（特别是通过拟合）的时间造影剂过程曲线 从至少一个造影剂路线曲线确定影响后续测量的时间工作流程的血管和至少一个造影剂信息项。

    MEDICAL IMAGING DEVICE AND METHOD TO EVALUATE A TEST BOLUS IMAGE SERIES
    17.
    发明申请
    MEDICAL IMAGING DEVICE AND METHOD TO EVALUATE A TEST BOLUS IMAGE SERIES 失效
    医学成像装置和评估测试玻璃图像系列的方法

    公开(公告)号：US20100246909A1

    公开(公告)日：2010-09-30

    申请号：US12732555

    申请日：2010-03-26

    申请人： Thomas Blum ,  Michaela Schmidt ,  Peter Schmitt ,  Michael Zenge

    发明人： Thomas Blum ,  Michaela Schmidt ,  Peter Schmitt ,  Michael Zenge

    IPC分类号： G06K9/00

    CPC分类号： G01R33/5635 ,  A61B5/055 ,  A61B5/7207

    摘要： In a method and device to evaluate a time series of in particular two-dimensional images of a contrast agent flow in at least one blood vessel of the human body within the scope of a test bolus measurement, wherein the acquisition of the time series begins with administration of the contrast agent, the time series of two-dimensional images or a time series of images derived from this is used as a time series of evaluation images, and in at least one evaluation image exhibiting a contrast agent signal, at least one point associated with a blood vessel is determined semi-automatically or automatically and transferred to further evaluation images. For every blood vessel discovered in this way, a temporal contrast agent course curve is determined (in particular via a fit) automatically from the image signal of the evaluation images at the at least one point and/or in a region around the marked point in the blood vessel and at least one item of contrast agent information that affects the temporal workflow of a subsequent measurement is determined from at least one contrast agent course curve.

    摘要翻译： 在用于在测试推注测量范围内评估人体至少一个血管中的造影剂流的特定二维图像的时间序列的方法和装置中，其中时间序列的获取开始于 使用对比剂的施用，二维图像的时间序列或由此导出的图像的时间序列作为评价图像的时间序列，并且在至少一个呈现造影剂信号的评价图像中，至少一个点 半自动或自动地确定与血管相关联，并转移到另外的评估图像。 对于以这种方式发现的每个血管，在评估图像的图像信号的至少一点和/或周围的标记点周围的区域中自动地确定（特别是通过拟合）的时间造影剂过程曲线 从至少一个造影剂路线曲线确定影响后续测量的时间工作流程的血管和至少一个造影剂信息项目。

    Method and device for phase-sensitive flow measurement by a magnetic resonance
    18.
    发明授权
    Method and device for phase-sensitive flow measurement by a magnetic resonance 有权
    通过磁共振对相敏流量测量的方法和装置

    公开(公告)号：US08798942B2

    公开(公告)日：2014-08-05

    申请号：US12975840

    申请日：2010-12-22

    申请人： Andreas Greiser ,  Edgar Mueller ,  Michael Zenge

    发明人： Andreas Greiser ,  Edgar Mueller ,  Michael Zenge

    IPC分类号： G01F1/00 ,  G01F7/00 ,  A61B5/05 ,  G01V3/00

    CPC分类号： G01R33/56316 ,  G01R33/56383

    摘要： In a method and a device for phase-sensitive flow measurement of a volume segment of an examination subject in a measurement system, the volume segment is divided into multiple partial volume segments and the following steps are executed repeatedly until the volume segment has been completely measured: movement of a table such that a center of one of the partial volume segments to be measured essentially corresponds to the isocenter of the magnetic resonance system, and implementation of the phase-sensitive flow measurement for the partial volume segment to be measured while the center of the partial volume segment essentially corresponds to the isocenter.

    摘要翻译： 在用于测量系统中的检查对象的体积段的相敏度流量测量的方法和装置中，将体积段划分成多个部分体积段，并且重复执行以下步骤，直到体积段已被完全测量 ：使得要测量的部分体积段中的一个的中心基本上对应于磁共振系统的等角点的台的移动，以及在中心处测量的部分体积段的相敏流测量的实现 的部分体积段基本上对应于等角点。

    METHOD AND DEVICE FOR PHASE-SENSITIVE FLOW MEASUREMENT BY A MAGNETIC RESONANCE
    19.
    发明申请
    METHOD AND DEVICE FOR PHASE-SENSITIVE FLOW MEASUREMENT BY A MAGNETIC RESONANCE 有权
    用于通过磁共振测量相位敏感流量的方法和装置

    公开(公告)号：US20110153231A1

    公开(公告)日：2011-06-23

    申请号：US12975840

    申请日：2010-12-22

    申请人： Andreas Greiser ,  Edgar Mueller ,  Michael Zenge

    发明人： Andreas Greiser ,  Edgar Mueller ,  Michael Zenge

    IPC分类号： G06F19/00

    CPC分类号： G01R33/56316 ,  G01R33/56383

    摘要： In a method and a device for phase-sensitive flow measurement of a volume segment of an examination subject in a measurement system, the volume segment is divided into multiple partial volume segments and the following steps are executed repeatedly until the volume segment has been completely measured: movement of a table such that a center of one of the partial volume segments to be measured essentially corresponds to the isocenter of the magnetic resonance system, and implementation of the phase-sensitive flow measurement for the partial volume segment to be measured while the center of the partial volume segment essentially corresponds to the isocenter.

    摘要翻译： 在用于测量系统中的检查对象的体积段的相敏度流量测量的方法和装置中，将体积段划分成多个部分体积段，并且重复执行以下步骤，直到体积段已被完全测量 ：使得要测量的部分体积段中的一个的中心基本上对应于磁共振系统的等角点的台的移动，以及在中心处测量的部分体积段的相敏流测量的实现 的部分体积段基本上对应于等角点。

    METHOD AND MAGNETIC RESONANCE SYSTEM FOR COMBINING SIGNALS ACQUIRED FROM DIFFERENT ACQUISITION COILS
    20.
    发明申请
    METHOD AND MAGNETIC RESONANCE SYSTEM FOR COMBINING SIGNALS ACQUIRED FROM DIFFERENT ACQUISITION COILS 有权
    用于组合从不同收购线圈获得的信号的方法和磁共振系统

    公开(公告)号：US20120112751A1

    公开(公告)日：2012-05-10

    申请号：US13289309

    申请日：2011-11-04

    申请人： Arne Littmann ,  Davide Piccini ,  Michael Zenge

    发明人： Arne Littmann ,  Davide Piccini ,  Michael Zenge

    IPC分类号： G01R33/44

    CPC分类号： G01R33/4838 ,  A61B5/055 ,  G01R33/5608 ,  G01R33/5611 ,  G01R33/56545

    摘要： In a method and magnetic resonance (MR) apparatus for combining MR signals that were acquired with different acquisition coils from a region of an examination subject at least two MR signals that are based on MR signals acquired with at least two different acquisition coils are provided to a processor. Due to the spatially differing arrangement of the respective acquisition coils, the at least two MR signals image the region of the examination subject with different sensitivity profiles. The provided MR signals are combined, such that unwanted MR signal portions are suppressed, to form a combined MR signal with the suppression of unwanted MR signal portions being implemented by MR signal portions that were acquired with an acquisition coil that detects the unwanted MR signal portions with increased sensitivity in comparison to other acquisition coils being weighted less in the combined MR signal than other MR signal portions.

    摘要翻译： 在用于组合从检查对象的区域中获取的不同采集线圈的MR信号的方法和磁共振（MR）装置中，至少两个MR信号基于用至少两个不同采集线圈获取的MR信号被提供给 一个处理器 由于各个采集线圈的空间上不同的布置，所述至少两个MR信号以不同的灵敏度分布图像检查对象的区域。 所提供的MR信号被组合，使得不需要的MR信号部分被抑制以形成组合的MR信号，其中抑制不期望的MR信号部分由MR信号部分实现，MR信号部分是用检测不需要的MR信号部分的采集线圈 与其他采集线圈相比，在组合MR信号中比其他MR信号部分加权较小的灵敏度增加。