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公开(公告)号：US08738113B2
公开(公告)日：2014-05-27
申请号：US12895533
申请日：2010-09-30
申请人： Dennis L. Parker , Jason K. Mendes , Jordan Hulet
发明人： Dennis L. Parker , Jason K. Mendes , Jordan Hulet
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , A61B5/024 , A61B5/7207 , A61B5/7285 , G01R33/5617 , G01R33/56325 , G01R33/5673
摘要： Systems and methods which generate a sequence of images using turbo spin echo magnetic resonance imaging which are retrospectively correlated with periodic motion occurring within a subject being imaged are described. In one embodiment, k-space measurements (or the measurements from which images are formed) are captured during, and correlated with, different phases in a cardiac cycle of the subject. With this sequence, the images that are produced are able to show, and/or compensate for, motion correlated with the cardiac cycle of the subject.
摘要翻译： 描述了使用涡旋自旋回波磁共振成像产生图像序列的系统和方法，其与成像对象内发生的周期性运动追溯相关。 在一个实施例中，k个空间测量（或形成图像的测量）在受试者的心脏周期中被捕获并且与其相关。 利用该序列，所产生的图像能够显示和/或补偿与受试者心脏周期相关的运动。
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公开(公告)号：US20120083687A1
公开(公告)日：2012-04-05
申请号：US12895533
申请日：2010-09-30
申请人： Dennis L. Parker , Jason K. Mendes , Jordan Hulet
发明人： Dennis L. Parker , Jason K. Mendes , Jordan Hulet
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , A61B5/024 , A61B5/7207 , A61B5/7285 , G01R33/5617 , G01R33/56325 , G01R33/5673
摘要： Systems and methods which generate a sequence of images using turbo spin echo magnetic resonance imaging which are retrospectively correlated with periodic motion occurring within a subject being imaged are described. In one embodiment, k-space measurements (or the measurements from which images are formed) are captured during, and correlated with, different phases in a cardiac cycle of the subject. With this sequence, the images that are produced are able to show, and/or compensate for, motion correlated with the cardiac cycle of the subject.
摘要翻译： 描述了使用涡旋自旋回波磁共振成像产生图像序列的系统和方法，其与成像对象内发生的周期性运动追溯相关。 在一个实施例中，k个空间测量（或形成图像的测量）在受试者的心脏周期中被捕获并且与其相关。 利用该序列，所产生的图像能够显示和/或补偿与受试者心脏周期相关的运动。
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公开(公告)号：US20120082355A1
公开(公告)日：2012-04-05
申请号：US12895434
申请日：2010-09-30
申请人： Jason K. Mendes , Dennis L. Parker
发明人： Jason K. Mendes , Dennis L. Parker
CPC分类号： G01R33/56509 , G01R33/5611
摘要： A self-navigating technique designed to detect motion in segmented sequences is disclosed. Certain embodiments compare a plurality of segments containing adjacent sets of k-space lines and produce an aliased error function which corresponds to a correlation of the segments. A global shift of the aliased error function may indicate the presence of in-plane rigid-body translation while other types of motion are evident in the dispersion or breadth of the error function. Some embodiments may then replace motion corrupted data with reacquired data. Further, some embodiments may correct or remove corrupted data retrospectively.
摘要翻译： 公开了一种设计用于检测分段序列中的运动的自导航技术。 某些实施例比较了包含相邻的k空间线集合的多个段，并且产生对应于段的相关性的混叠误差函数。 混叠误差函数的全局偏移可能表明存在平面内部的刚体平移，而其他类型的运动在误差函数的偏差或宽度方面是明显的。 一些实施例可以用重新获取的数据替换运动损坏的数据。 此外，一些实施例可以追溯地校正或移除损坏的数据。
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公开(公告)号：US08811694B2
公开(公告)日：2014-08-19
申请号：US12895434
申请日：2010-09-30
申请人： Jason K. Mendes , Dennis L. Parker
发明人： Jason K. Mendes , Dennis L. Parker
IPC分类号： G06K9/00 , G01R33/565 , G01R33/561
CPC分类号： G01R33/56509 , G01R33/5611
摘要： A self-navigating technique designed to detect motion in segmented sequences is disclosed. Certain embodiments compare a plurality of segments containing adjacent sets of k-space lines and produce an aliased error function which corresponds to a correlation of the segments. A global shift of the aliased error function may indicate the presence of in-plane rigid-body translation while other types of motion are evident in the dispersion or breadth of the error function. Some embodiments may then replace motion corrupted data with reacquired data. Further, some embodiments may correct or remove corrupted data retrospectively.
摘要翻译： 公开了一种设计用于检测分段序列中的运动的自导航技术。 某些实施例比较了包含相邻的k空间线集合的多个段，并且产生对应于段的相关性的混叠误差函数。 混叠误差函数的全局偏移可能表明存在平面内部的刚体平移，而其他类型的运动在误差函数的偏差或宽度方面是明显的。 一些实施例可以用重新获取的数据替换运动损坏的数据。 此外，一些实施例可以追溯地校正或移除损坏的数据。
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