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1. 发明授权

US08191359B2 Motion estimation using hidden markov model processing in MRI and other applications 有权
标题翻译：运动估计在MRI和其他应用中使用隐马尔可夫模型处理
公开(公告)号：US08191359B2
公开(公告)日：2012-06-05
申请号：US11735409
申请日：2007-04-13
申请人： Nathan White , Anders Dale
发明人： Nathan White , Anders Dale
IPC分类号： A61B5/05
CPC分类号： G01R33/56509 , G01R33/5676
摘要： Systems, apparatus and methods that use a hidden Markov model to estimate motion of a sample under measurement and to reduce a motion-induced effect in the measurement. MRI systems and other sample measurement systems can be implemented based on motion sensing using the hidden Markov model. Recursive and non-recursive estimation processes are described.
摘要翻译：使用隐马尔科夫模型来估计测量样本的运动并减少测量中的运动诱发效应的系统，设备和方法。 MRI系统和其他样本测量系统可以基于使用隐马尔可夫模型的运动检测来实现。描述递归和非递归估计过程。

2. 发明申请

US20070253599A1 Motion Estimation Using Hidden Markov Model Processing in MRI and Other Applications 有权
标题翻译： MRI和其他应用中使用隐马尔可夫模型处理的运动估计
公开(公告)号：US20070253599A1
公开(公告)日：2007-11-01
申请号：US11735409
申请日：2007-04-13
申请人： Nathan White , Anders Dale
发明人： Nathan White , Anders Dale
IPC分类号： G06K9/00
CPC分类号： G01R33/56509 , G01R33/5676
摘要： Systems, apparatus and methods that use a hidden Markov model to estimation motion of a sample under measurement and to reduce a motion-induced effect in the measurement. MRI systems and other sample measurement systems can be implemented based on motion sensing using the hidden Markov model. Recursive and non-recursive estimation processes are described.
摘要翻译：使用隐马尔科夫模型估计测量样本的运动并减少测量中的运动诱发效应的系统，装置和方法。 MRI系统和其他样本测量系统可以基于使用隐马尔可夫模型的运动检测来实现。描述递归和非递归估计过程。

3. 发明授权

US08160319B2 Reducing distortion in magnetic resonance images 有权
标题翻译：降低磁共振图像的失真
公开(公告)号：US08160319B2
公开(公告)日：2012-04-17
申请号：US12152842
申请日：2008-05-16
申请人： Dominic Holland , Anders Dale
发明人： Dominic Holland , Anders Dale
IPC分类号： G06K9/00
CPC分类号： G01R33/5615 , G01R33/56563 , G01R33/56572
摘要： Systems and techniques for reducing distortions in magnetic resonance images. In one aspect, machine-implemented method for reducing image distortion in magnetic resonance imaging (MRI) includes receiving a first MRI image and a second MRI image, estimating displacements of voxels between the first MRI image and the second MRI image by minimizing a cost function expressing a cost of the displacements, reducing distortion in an MRI image using the estimated displacements, and making the MRI image having reduced distortion available. The first MRI image and the second MRI image were acquired using different gradient fields.
摘要翻译：用于减少磁共振图像失真的系统和技术。一方面，用于减少磁共振成像（MRI）中的图像失真的机器实现的方法包括：接收第一MRI图像和第二MRI图像，通过使成本函数最小化来估计第一MRI图像和第二MRI图像之间的体素位移表示位移的成本，使用估计的位移减少MRI图像中的失真，并且使得具有减小的失真的MRI图像可用。使用不同的梯度场获取第一MRI图像和第二MRI图像。

4. 发明申请

US20080154118A1 Atlas and methods for segmentation and alignment of anatomical data 失效
公开(公告)号：US20080154118A1
公开(公告)日：2008-06-26
申请号：US11999887
申请日：2007-12-07
申请人： Anders Dale , Sebastian Gicquel
发明人： Anders Dale , Sebastian Gicquel
IPC分类号： A61B5/055
CPC分类号： A61B5/055
摘要： The present invention provides an atlas comprising values representative of magnetic resonance properties of a magnetic resonance (MR) scan and optionally, prior probability data relating to tissue type. Further embodiments of the invention involve a system including an MR scanner and the atlas for use in alignment of an MR scan, such as a localizer scan, to obtain a specific geometry of the data acquired during a subsequent scan. Also, a system includes an MR scanner and the atlas for automatic segmentation of an MR scan. Methods of making and using the atlas and system are also provided.

5. 发明申请

US20080285835A1 Reducing distortion in magnetic resonance images 有权
标题翻译：降低磁共振图像的失真
公开(公告)号：US20080285835A1
公开(公告)日：2008-11-20
申请号：US12152842
申请日：2008-05-16
申请人： Dominic Holland , Anders Dale
发明人： Dominic Holland , Anders Dale
IPC分类号： G06K9/00 , G01R33/56
CPC分类号： G01R33/5615 , G01R33/56563 , G01R33/56572
摘要： Systems and techniques for reducing distortions in magnetic resonance images. In one aspect, machine-implemented method for reducing image distortion in magnetic resonance imaging (MRI) includes receiving a first MRI image and a second MRI image, estimating displacements of voxels between the first MRI image and the second MRI image by minimizing a cost function expressing a cost of the displacements, reducing distortion in an MRI image using the estimated displacements, and making the MRI image having reduced distortion available. The first MRI image and the second MRI image were acquired using different gradient fields.
摘要翻译：用于减少磁共振图像失真的系统和技术。一方面，用于减少磁共振成像（MRI）中的图像失真的机器实现的方法包括：接收第一MRI图像和第二MRI图像，通过使成本函数最小化来估计第一MRI图像和第二MRI图像之间的体素位移表示位移的成本，使用估计的位移减少MRI图像中的失真，并且使得具有减小的失真的MRI图像可用。使用不同的梯度场获取第一MRI图像和第二MRI图像。

6. 发明授权

US08140144B2 Atlas and methods for segmentation and alignment of anatomical data 失效
标题翻译：图谱和解剖数据的分割和对齐方法
公开(公告)号：US08140144B2
公开(公告)日：2012-03-20
申请号：US11999887
申请日：2007-12-07
申请人： Anders Dale , Sebastien Gicquel
发明人： Anders Dale , Sebastien Gicquel
IPC分类号： A61B5/055
CPC分类号： A61B5/055
摘要： The present invention provides an atlas comprising values representative of magnetic resonance properties of a magnetic resonance (MR) scan and optionally, prior probability data relating to tissue type. Further embodiments of the invention involve a system including an MR scanner and the atlas for use in alignment of an MR scan, such as a localizer scan, to obtain a specific geometry of the data acquired during a subsequent scan. Also, a system includes an MR scanner and the atlas for automatic segmentation of an MR scan. Methods of making and using the atlas and system are also provided.
摘要翻译：本发明提供了包括代表磁共振（MR）扫描的磁共振性质的值的图谱，以及可选地，与组织类型相关的先前概率数据。本发明的其它实施例涉及一种包括MR扫描器和用于对准MR扫描（例如定位器扫描）的图集的系统，以获得在随后的扫描期间获取的数据的特定几何形状。此外，系统还包括MR扫描器和用于MR扫描的自动分割的图集。还提供了制作和使用图谱和系统的方法。

7. 发明申请

US20050088177A1 Method for slice position planning of tomographic measurements, using statistical images 有权
公开(公告)号：US20050088177A1
公开(公告)日：2005-04-28
申请号：US10691405
申请日：2003-10-22
申请人： Oliver Schreck , Mike Muller , Martin Harder , Hans-Peter Hollenbach , Franz Schmitt , Ines Nimsky , Anders Dale , Andre Van Der Kouwe
发明人： Oliver Schreck , Mike Muller , Martin Harder , Hans-Peter Hollenbach , Franz Schmitt , Ines Nimsky , Anders Dale , Andre Van Der Kouwe
IPC分类号： A61B5/05 , A61B5/055 , A61B5/107 , A61B6/00 , A61B6/03 , G01V3/00
CPC分类号： A61B5/055 , A61B6/03 , A61B6/506
摘要： In a method and computer program product for operating a tomographic imaging apparatus, a standard measurement protocol is generated by displaying a planning representation of a standard object, defining a spatial position of a standard imaging area in the planning representation, and storing, as the standard measurement protocol for the standard object, a reference to the standard object and parameters of the standard imaging area. Such a standard measurement protocol can then be used in the slice position planning for an actual tomographic measurement, by obtaining data representing features of an examination object, corresponding to the standard object, determining a geometrical relation of the features of the examination object to features of the standard object, and generating an object-specific measurement protocol wherein the imaging area is positioned relative to the examination object by modification of the standard measurement protocol.

8. 发明申请

US20120288174A1 ATLAS AND METHODS FOR SEGMENTATION AND ALIGNMENT OF ANATOMICAL DATA 审中-公开
标题翻译：解剖学和数据分类方法
公开(公告)号：US20120288174A1
公开(公告)日：2012-11-15
申请号：US13411041
申请日：2012-03-02
申请人： Anders Dale , Sebastian Gicquel
发明人： Anders Dale , Sebastian Gicquel
IPC分类号： G06K9/00
CPC分类号： A61B5/055
摘要： The present invention provides an atlas comprising values representative of magnetic resonance properties of a magnetic resonance (MR) scan and optionally, prior probability data relating to tissue type. Further embodiments of the invention involve a system including an MR scanner and the atlas for use in alignment of an MR scan, such as a localizer scan, to obtain a specific geometry of the data acquired during a subsequent scan. Also, a system includes an MR scanner and the atlas for automatic segmentation of an MR scan. Methods of making and using the atlas and system are also provided.
摘要翻译：本发明提供了包括代表磁共振（MR）扫描的磁共振性质的值的图谱，以及可选地，与组织类型相关的先前概率数据。本发明的其它实施例涉及一种包括MR扫描器和用于对准MR扫描（例如定位器扫描）的图集的系统，以获得在随后的扫描期间获取的数据的特定几何形状。此外，系统还包括MR扫描器和用于MR扫描的自动分割的图集。还提供了制作和使用图谱和系统的方法。

9. 发明授权

US07324842B2 Atlas and methods for segmentation and alignment of anatomical data 失效
标题翻译：图谱和解剖数据的分割和对齐方法
公开(公告)号：US07324842B2
公开(公告)日：2008-01-29
申请号：US10055256
申请日：2002-01-22
申请人： Anders Dale , Sébastien Gicquel
发明人： Anders Dale , Sébastien Gicquel
IPC分类号： A61B5/00
CPC分类号： A61B5/055
摘要： The present invention provides an atlas comprising values representative of magnetic resonance properties of a magnetic resonance (MR) scan and optionally, prior probability data relating to tissue type. Further embodiments of the invention involve a system including an MR scanner and the atlas for use in alignment of an MR scan, such as a localizer scan, to obtain a specific geometry of the data acquired during a subsequent scan. Also, a system includes an MR scanner and the atlas for automatic segmentation of an MR scan. Methods of making and using the atlas and system are also provided.
摘要翻译：本发明提供了包括代表磁共振（MR）扫描的磁共振性质的值的图谱，以及可选地，与组织类型相关的先前概率数据。本发明的其它实施例涉及一种包括MR扫描器和用于对准MR扫描（例如定位器扫描）的图集的系统，以获得在随后的扫描期间获取的数据的特定几何形状。此外，系统还包括MR扫描器和用于MR扫描的自动分割的图集。还提供了制作和使用图谱和系统的方法。

10. 发明申请

US20070090837A1 System, method, software arrangement and computer-accessible medium for providing real-time motion correction by utilizing clover leaf navigators 有权
标题翻译：系统，方法，软件安排和计算机可访问介质，通过三叶草叶导航仪提供实时运动校正
公开(公告)号：US20070090837A1
公开(公告)日：2007-04-26
申请号：US11257925
申请日：2005-10-24
申请人： Andre Van Der Kouwe , Anders Dale
发明人： Andre Van Der Kouwe , Anders Dale
IPC分类号： G01V3/00
CPC分类号： G01R33/5676
摘要： A system, method, software arrangement and computer-accessible medium for correcting for a motion of an object are provided. In this system, method, software arrangement and computer-accessible medium, the navigator data and map data can be obtained for the object. Then, the navigator data is compared with the map to generate comparison data. Thereafter, a translation and/or a rotation of the object is corrected in real-time as a function of the comparison data. The navigator can be preferably a clover leaf navigator. In one exemplary embodiment, a scanning sequence can be used to determine a position of the object. For example, this scanning sequence may include a signal portion which includes at least one radio frequency signal, a navigator portion which includes at least one clover leaf navigator, and a spoiler portion provided for reducing a signal magnitude of the scanning sequence. The navigator is provided for allowing a measurement of the rotation and/or the translation of the object. The measurement can be adjusted by correcting for phase encoding effects, shimming errors, and B0 drifts. A feedback control system may be provided to repeatedly correct the measurement of the rotation and translation of the object. The navigator portion can advantageously be provided between the signal portion and the spoiler portion. The system, method, software arrangement and computer-accessible medium may be implemented when multiple coils are present.
摘要翻译：提供了用于校正物体的运动的系统，方法，软件布置和计算机可访问介质。在该系统中，方法，软件安排和计算机可访问介质可以为对象获得导航器数据和地图数据。然后，将导航器数据与地图进行比较以生成比较数据。此后，作为比较数据的函数，实时地校正对象的平移和/或旋转。导航仪最好是三叶草叶导航仪。在一个示例性实施例中，可以使用扫描序列来确定对象的位置。例如，该扫描序列可以包括包括至少一个射频信号的信号部分，包括至少一个三叶草叶导航器的导航器部分和用于减小扫描序列的信号幅度的扰流器部分。导航器用于允许测量对象的旋转和/或平移。可以通过校正相位编码效果，匀场误差和B0漂移来调整测量。可以提供反馈控制系统以重复地校正对象的旋转和平移的测量。导航器部分可以有利地设置在信号部分和扰流部分之间。当存在多个线圈时，可以实现系统，方法，软件布置和计算机可访问介质。

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