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1.
公开(公告)号:US20120262172A1
公开(公告)日:2012-10-18
申请号:US13450177
申请日:2012-04-18
申请人: James Hartman Holmes , Jean Helen Brittain , Reed Frederick Busse , Ajeetkumar Gaddipati , Xiaoli Zhao , Philip James Beatty , Zhiqiang Li , Howard Andrew Rowley
发明人: James Hartman Holmes , Jean Helen Brittain , Reed Frederick Busse , Ajeetkumar Gaddipati , Xiaoli Zhao , Philip James Beatty , Zhiqiang Li , Howard Andrew Rowley
IPC分类号: G01R33/48
CPC分类号: G01R33/56509 , G01R33/4824 , G01R33/5602 , G01R33/5611
摘要: A method includes the acts of acquiring a blade of k-space calibration data; acquiring a set of T1-weighted k-space imaging data, the set of T1-weighted k-space imaging data having blades of undersampled k-space data rotated about a section of k-space. Each blade of undersampled k-space data includes first data points having acquired data and second data points that are missing data. The method also includes generating a set of reconstruction weights for the blades of undersampled k-space data using the blade of k-space calibration data; synthesizing k-space data for at least a portion of the second data points using the set of reconstruction weights; and generating a T1-weighted image using the T1-weighted k-space imaging data and the synthesized k-space data.
摘要翻译: 一种方法包括获取k空间校准数据的叶片的动作; 获取一组T1加权的k空间成像数据,该组T1加权的k空间成像数据具有围绕k空间的一部分旋转的欠采样k空间数据的叶片。 每个欠采样的k空间数据刀片包括具有获取数据的第一数据点和缺失数据的第二数据点。 该方法还包括:使用k空间校准数据的叶片为下采样的k空间数据的叶片生成一组重建权重; 使用所述一组重建权重来合成所述第二数据点的至少一部分的k空间数据; 以及使用T1加权的k空间成像数据和合成的k空间数据生成T1加权图像。
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公开(公告)号:US09239367B2
公开(公告)日:2016-01-19
申请号:US13619110
申请日:2012-09-14
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。
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3.
公开(公告)号:US09103898B2
公开(公告)日:2015-08-11
申请号:US13450177
申请日:2012-04-18
申请人: James Hartman Holmes , Jean Helen Brittain , Reed Frederick Busse , Ajeetkumar Gaddipati , Xiaoli Zhao , Philip James Beatty , Zhiqiang Li , Howard Andrew Rowley
发明人: James Hartman Holmes , Jean Helen Brittain , Reed Frederick Busse , Ajeetkumar Gaddipati , Xiaoli Zhao , Philip James Beatty , Zhiqiang Li , Howard Andrew Rowley
IPC分类号: G01R33/48 , G01R33/565 , G01R33/56 , G01R33/561
CPC分类号: G01R33/56509 , G01R33/4824 , G01R33/5602 , G01R33/5611
摘要: A method includes the acts of acquiring a blade of k-space calibration data; acquiring a set of T1-weighted k-space imaging data, the set of T1-weighted k-space imaging data having blades of undersampled k-space data rotated about a section of k-space. Each blade of undersampled k-space data includes first data points having acquired data and second data points that are missing data. The method also includes generating a set of reconstruction weights for the blades of undersampled k-space data using the blade of k-space calibration data; synthesizing k-space data for at least a portion of the second data points using the set of reconstruction weights; and generating a T1-weighted image using the T1-weighted k-space imaging data and the synthesized k-space data.
摘要翻译: 一种方法包括获取k空间校准数据的叶片的动作; 获取一组T1加权的k空间成像数据,该组T1加权的k空间成像数据具有围绕k空间的一部分旋转的欠采样k空间数据的叶片。 每个欠采样的k空间数据刀片包括具有获取数据的第一数据点和缺失数据的第二数据点。 该方法还包括:使用k空间校准数据的叶片为下采样的k空间数据的叶片生成一组重建权重; 使用所述一组重建权重来合成所述第二数据点的至少一部分的k空间数据; 以及使用T1加权的k空间成像数据和合成的k空间数据生成T1加权图像。
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公开(公告)号:US20140077813A1
公开(公告)日:2014-03-20
申请号:US13619110
申请日:2012-09-14
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。
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