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1. 发明申请

US20140152304A1 SYSTEMS AND METHODS FOR REDUCED OFF-RESONANCE BLURRING IN SPIRAL IMAGING 有权
标题翻译：用于减少螺旋成像中的非共振辐射的系统和方法
公开(公告)号：US20140152304A1
公开(公告)日：2014-06-05
申请号：US13868095
申请日：2013-04-22
申请人： Samuel W. Fielden , Craig H. Meyer , Xue Feng
发明人： Samuel W. Fielden , Craig H. Meyer , Xue Feng
IPC分类号： G01R33/565
CPC分类号： G01R33/565 , G01R33/4824
摘要： Systems, methods of reducing off-resonance blurring in acquired magnetic resonance imaging data. The method includes acquiring a first set of spiral interleaf data for each of one or more spiral-in/out interleaves by performing a first sampling each of one or more locations in k-space along a first redundant spiral-in/out trajectory, and acquiring a second set of spiral interleaf data for each of the one or more spiral-in/out interleaves by performing a second sampling of each of the one or more locations in the k-space along a second redundant spiral-in/out trajectory, wherein the second redundant spiral-in/out trajectory corresponds to a time-reversed trajectory of the first redundant spiral-in/out trajectory. The method may yet further include combining the first set of spiral interleaf data and the second set of spiral interleaf data with an averaging operation such as to reduce artifacts.
摘要翻译：系统，减少获取的磁共振成像数据中的非共振模糊的方法。该方法包括：通过沿着第一冗余螺旋进/出轨迹对k空间中的一个或多个位置执行第一采样，获取一个或多个螺旋输入/输出交错中的每一个的第一组螺旋插入数据，以及通过沿着第二冗余螺旋进/出轨迹执行所述k空间中的所述一个或多个位置中的每个位置的第二采样来获取所述一个或多个螺旋输入/输出交错中的每一个的第二组螺旋插入数据，其中所述第二冗余螺旋进/出轨迹对应于所述第一冗余螺旋进/出轨迹的时间反转轨迹。该方法还可以包括将第一组螺旋插入数据和第二组螺旋插值数据与平均化操作组合，以减少伪影。

2. 发明授权

US09322896B2 Systems and methods for reduced off-resonance blurring in spiral imaging 有权
标题翻译：用于减少螺旋成像中的非共振模糊的系统和方法
公开(公告)号：US09322896B2
公开(公告)日：2016-04-26
申请号：US13868095
申请日：2013-04-22
申请人： Samuel W. Fielden , Craig H. Meyer , Xue Feng
发明人： Samuel W. Fielden , Craig H. Meyer , Xue Feng
IPC分类号： G01V3/00 , G01R33/565 , G01R33/48
CPC分类号： G01R33/565 , G01R33/4824
摘要： Systems, methods of reducing off-resonance blurring in acquired magnetic resonance imaging data. The method includes acquiring a first set of spiral interleaf data for each of one or more spiral-in/out interleaves by performing a first sampling each of one or more locations in k-space along a first redundant spiral-in/out trajectory, and acquiring a second set of spiral interleaf data for each of the one or more spiral-in/out interleaves by performing a second sampling of each of the one or more locations in the k-space along a second redundant spiral-in/out trajectory, wherein the second redundant spiral-in/out trajectory corresponds to a time-reversed trajectory of the first redundant spiral-in/out trajectory. The method may yet further include combining the first set of spiral interleaf data and the second set of spiral interleaf data with an averaging operation such as to reduce artifacts.
摘要翻译：系统，减少获取的磁共振成像数据中的非共振模糊的方法。该方法包括：通过沿着第一冗余螺旋进/出轨迹对k空间中的一个或多个位置执行第一采样，获取一个或多个螺旋输入/输出交错中的每一个的第一组螺旋插入数据，以及通过沿着第二冗余螺旋进/出轨迹执行所述k空间中的所述一个或多个位置中的每个位置的第二采样来获取所述一个或多个螺旋输入/输出交错中的每一个的第二组螺旋插入数据，其中所述第二冗余螺旋进/出轨迹对应于所述第一冗余螺旋进/出轨迹的时间反转轨迹。该方法还可以包括将第一组螺旋插入数据和第二组螺旋插值数据与平均化操作组合，以减少伪影。

3. 发明授权

US09183626B2 Systems and methods for accelerated arterial spin labeling using compressed sensing 有权
标题翻译：使用压缩感应加速动脉自旋标记的系统和方法
公开(公告)号：US09183626B2
公开(公告)日：2015-11-10
申请号：US13867325
申请日：2013-04-22
申请人： Li Zhao , Xiao Chen , Samuel W. Fielden , Frederick H. Epstein , John P. Mugler, III , Manal Nicolas-Jilwan , Max Wintermark , Craig H. Meyer
发明人： Li Zhao , Xiao Chen , Samuel W. Fielden , Frederick H. Epstein , John P. Mugler, III , Manal Nicolas-Jilwan , Max Wintermark , Craig H. Meyer
IPC分类号： G06K9/00 , G06T7/00 , G01R33/563 , A61B5/05 , G01R33/561
CPC分类号： G06T7/0012 , G01R33/4824 , G01R33/5611 , G01R33/56366 , G06K9/6232 , G06T11/005 , G06T2207/10088 , G06T2207/30104 , G06T2211/412 , G06T2211/424
摘要： Systems and methods for accelerated arterial spin labeling (ASL) using compressed sensing are disclosed. In one aspect, in accordance with one example embodiment, a method includes acquiring magnetic resonance data associated with an area of interest of a subject, wherein the area of interest corresponds to one or more physiological activities of the subject. The method also includes performing image reconstruction using temporally constrained compressed sensing reconstruction on at least a portion of the acquired magnetic resonance data, wherein acquiring the magnetic resonance data includes receiving data associated with ASL of the area of interest of the subject.
摘要翻译：公开了使用压缩感测加速动脉自旋标记（ASL）的系统和方法。在一个方面，根据一个示例性实施例，一种方法包括获取与受试者的感兴趣区域相关联的磁共振数据，其中感兴趣区域对应于受试者的一个或多个生理活动。该方法还包括在所获取的磁共振数据的至少一部分上使用时间上受限的压缩感测重构来执行图像重建，其中获取磁共振数据包括接收与被摄体的感兴趣区域的ASL相关联的数据。

4. 发明申请

US20130315461A1 SYSTEMS AND METHODS FOR ACCELERATED ARTERIAL SPIN LABELING USING COMPRESSED SENSING 有权
标题翻译：使用压缩感应加速型旋转标签的系统和方法
公开(公告)号：US20130315461A1
公开(公告)日：2013-11-28
申请号：US13867325
申请日：2013-04-22
申请人： Li Zhao , Xiao Chen , Samuel W. Fielden , Frederick H. Epstein , John P. Mugler, III , Manal Nicolas-Jilwan , Max Wintermark , Craig H. Meyer
发明人： Li Zhao , Xiao Chen , Samuel W. Fielden , Frederick H. Epstein , John P. Mugler, III , Manal Nicolas-Jilwan , Max Wintermark , Craig H. Meyer
IPC分类号： G06T7/00
CPC分类号： G06T7/0012 , G01R33/4824 , G01R33/5611 , G01R33/56366 , G06K9/6232 , G06T11/005 , G06T2207/10088 , G06T2207/30104 , G06T2211/412 , G06T2211/424
摘要： Systems and methods for accelerated arterial spin labeling (ASL) using compressed sensing are disclosed. In one aspect, in accordance with one example embodiment, a method includes acquiring magnetic resonance data associated with an area of interest of a subject, wherein the area of interest corresponds to one or more physiological activities of the subject. The method also includes performing image reconstruction using temporally constrained compressed sensing reconstruction on at least a portion of the acquired magnetic resonance data, wherein acquiring the magnetic resonance data includes receiving data associated with ASL of the area of interest of the subject.
摘要翻译：公开了使用压缩感测加速动脉自旋标记（ASL）的系统和方法。在一个方面，根据一个示例性实施例，一种方法包括获取与受试者的感兴趣区域相关联的磁共振数据，其中感兴趣区域对应于受试者的一个或多个生理活动。该方法还包括在所获取的磁共振数据的至少一部分上使用时间上受限的压缩感测重构来执行图像重建，其中获取磁共振数据包括接收与被摄体的感兴趣区域的ASL相关联的数据。

5. 发明申请

US20130278261A1 SYSTEMS AND METHODS FOR REGULARIZED RECONSTRUCTIONS IN MRI USING SIDE INFORMATION 有权
标题翻译：使用侧面信息的MRI中定期重建的系统和方法
公开(公告)号：US20130278261A1
公开(公告)日：2013-10-24
申请号：US13867885
申请日：2013-04-22
申请人： Samuel W. Fielden , Craig H. Meyer
发明人： Samuel W. Fielden , Craig H. Meyer
IPC分类号： G01R33/56
CPC分类号： G01R33/5608
摘要： Systems and methods for magnetic resonance imaging (MRI) using side information for improved reconstruction are disclosed. In one aspect, in accordance with one example embodiment, images obtained using heteronuclei, such as Fluorine-19 (19F), can be reconstructed using one or more methods to provide improved resolution and detail. The system can use anatomical proton MRI scans. The system can use multiple smoothing techniques to improve the signal-to-noise ratio (SNR). The system can also use weighted smoothing using information from anatomical proton MRI scans to improve resolution.
摘要翻译：公开了使用侧面信息进行改进重建的磁共振成像（MRI）的系统和方法。在一个方面，根据一个示例性实施例，可以使用一种或多种方法来重建使用异核的获得的图像，例如氟-19（19F），以提供改进的分辨率和细节。该系统可以使用解剖质子MRI扫描。该系统可以使用多种平滑技术来提高信噪比（SNR）。该系统还可以使用来自解剖质子MRI扫描的信息的加权平滑来提高分辨率。

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