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11. 发明申请

US20100085051A1 METHOD AND DEVICE TO DETERMINE AN INVERSION TIME VALUE OF TISSUE BY MEANS OF MAGNETIC RESONANCE TECHNOLOGY 有权
标题翻译：用磁共振技术测定组织反转时间值的方法和装置
公开(公告)号：US20100085051A1
公开(公告)日：2010-04-08
申请号：US12571540
申请日：2009-10-01
申请人： Arne Littmann , Peter Speier , Katrin Christel Sprung
发明人： Arne Littmann , Peter Speier , Katrin Christel Sprung
IPC分类号： G01R33/48
CPC分类号： A61B5/055 , A61B5/7285 , G01R33/281 , G01R33/56 , G01R33/5601 , G01R33/5602 , G01R33/5608 , G01R33/563 , G01R33/56325 , G01R33/56366
摘要： In a method to determine an inversion time value for contrast improvement between different tissue in a contrast agent-supported magnetic resonance imaging, a series of magnetic resonance images of an imaging area is acquired using an inversion recovery sequence with different inversion times. A structure in the magnetic resonance images is segmented and a time response of the signal intensity of image elements corresponding to one another in the magnetic resonance images of the segmented structure is automatically determined. Minima of the signal intensity in the segmented structure are determined automatically and associated with the associated inversion time values. The optimal inversion time value for contrast improvement is automatically determined from the inversion time values that have been associated with the minima of the signal intensity in the segmented structure.
摘要翻译：在用于确定造影剂支持的磁共振成像中的不同组织之间的对比度改善的反转时间值的方法中，使用具有不同反转时间的反转恢复序列来获取成像区域的一系列磁共振图像。分割磁共振图像中的结构，并且自动确定在分段结构的磁共振图像中彼此对应的图像元素的信号强度的时间响应。自动确定分段结构中的信号强度的最小值，并与相关的反转时间值相关联。根据与分段结构中的信号强度的最小值相关联的反转时间值自动确定对比度改善的最佳反演时间值。

12. 发明授权

US08675940B2 Generation of moving vascular models and blood flow analysis from moving vascular models and phase contrast MRI 有权
标题翻译：移动血管模型的生成和血液流动分析从移动血管模型和相位对比MRI
公开(公告)号：US08675940B2
公开(公告)日：2014-03-18
申请号：US12911829
申请日：2010-10-26
申请人： Mehmet Akif Gulsun , Andreas Greiser , Jens Guehring , Arne Littmann , Edgar Müller
发明人： Mehmet Akif Gulsun , Andreas Greiser , Jens Guehring , Arne Littmann , Edgar Müller
IPC分类号： G06K9/00
CPC分类号： G06T7/251 , G06T7/248 , G06T2207/10096 , G06T2207/30104
摘要： A method of deriving blood flow parameters from a moving three-dimensional (3D) model of a blood vessel includes determining a reference vascular cross-sectional plane through a location of a lumen in a moving 3D model of the blood vessel at one time within the model, determining a plurality of target vascular cross-sectional planes at multiple times via temporal tracking of the reference plane based on a displacement field, determining a plurality of contours based on an intersection of the target vascular cross-sectional planes with the moving 3D vessel model at multiple times within the model, and determining a blood flow parameter of the vessel from intersections of each contour of a given one of the times with a phase contrast magnetic resonance (PC-MRI) image of the blood vessel from the corresponding time.
摘要翻译：从血管的移动三维（3D）模型导出血液流动参数的方法包括：确定在血管的运动3D模型中的管腔位置的参考血管横截面平面模型，基于位移场，通过基准平面的时间跟踪多次确定多个目标血管横截面，基于目标血管横截面与移动3D血管的交点确定多个轮廓模型，并且从给定时间的每个轮廓与相应时间的血管的相位对比磁共振（PC-MRI）图像的交点确定血管的血流参数。

13. 发明授权

US08466677B2 Method and magnetic resonance device to determine a background phase curve 有权
标题翻译：方法和磁共振装置确定背景相曲线
公开(公告)号：US08466677B2
公开(公告)日：2013-06-18
申请号：US13014840
申请日：2011-01-27
申请人： Andreas Greiser , Arne Littmann
发明人： Andreas Greiser , Arne Littmann
IPC分类号： G01V3/00
CPC分类号： G01R33/56316 , G01R33/56518
摘要： In a magnetic resonance (MR) device and method to determine a background phase curve in MR image data, in first MR image data and in second MR image data that respectively represent different segments (for example different slices) of an examination subject, first and second pixels are identified that represent essentially stationary tissue, and the associated phase values are determined. Phase correction values for the first MR image data are determined depending on the phase values determined for the first and second pixels that represent essentially stationary tissue.
摘要翻译：在用于确定MR图像数据中的背景相位曲线的磁共振（MR）装置和方法中，在分别表示检查对象的不同段（例如不同切片）的第一MR图像数据和第二MR图像数据中，首先和识别表示基本上静止的组织的第二像素，并且确定相关联的相位值。取决于对于代表基本上静止的组织的第一和第二像素确定的相位值来确定第一MR图像数据的相位校正值。

14. 发明授权

US08005274B2 Method for determining midpoint coordinates of an image of a point-symmetrical structure 有权
标题翻译：用于确定点对称结构的图像的中点坐标的方法
公开(公告)号：US08005274B2
公开(公告)日：2011-08-23
申请号：US11584991
申请日：2006-10-23
申请人： Jens Gühring , Arne Littmann
发明人： Jens Gühring , Arne Littmann
IPC分类号： G06K9/00 , G01V3/00
CPC分类号： G01R33/583 , G01R33/5608 , G01R33/56518 , G01R33/56563 , G01R33/56572 , G01R33/5659
摘要： The invention relates to a method for determining midpoint coordinates of an image of a point-symmetrical structure stored in a volume data record, comprising: extracting a partial volume data record from the volume data record which contains the image of the point-symmetrical structure, selecting a set of points whose coordinates lie in the partial volume data record, determining a measure for each point of the set wherein the measure for each of the points of the set characterizes in each case the symmetry of the partial volume data record in relation to this point, selecting a point as a midpoint of the point-symmetrical structure that point of the set in relation to which the partial volume data record has the greatest symmetry on the basis of the previously determined measures, and storing the coordinates of the midpoint in a computer unit.
摘要翻译：本发明涉及一种用于确定存储在体数据记录中的点对称结构的图像的中点坐标的方法，包括：从包含点对称结构的图像的体数据记录中提取部分体数据记录，选择一组坐标位于部分体积数据记录中的点，确定集合中的每个点的度量，其中集合中的每个点的度量在每种情况下表征为部分体积数据记录相对于这一点，将点作为点对称结构的中点，基于先前确定的度量，部分体积数据记录相对于该组的点具有最大对称性，并且将中点的坐标存储在一个电脑单元。

15. 发明申请

US20120235679A1 MOTION COMPENSATED MAGNETIC RESONANCE RECONSTRUCTION IN REAL-TIME IMAGING 有权
标题翻译：运动补偿磁共振重建实时成像
公开(公告)号：US20120235679A1
公开(公告)日：2012-09-20
申请号：US13413812
申请日：2012-03-07
申请人： Hui Xue , Christoph Guetter , Yu Ding , Marie-Pierre Jolly , Orlando P. Simonetti , Jens Guehring , Sven Zuehlsdorff , Arne Littmann
发明人： Hui Xue , Christoph Guetter , Yu Ding , Marie-Pierre Jolly , Orlando P. Simonetti , Jens Guehring , Sven Zuehlsdorff , Arne Littmann
IPC分类号： G01R33/44
CPC分类号： G01R33/56509 , G01R33/5611 , G01R33/56325
摘要： Magnetic resonance reconstruction includes motion compensation. Inverse-consistent non-rigid registration is used to determine motion between shots. The motion is incorporated into reconstruction. The incorporation compensates for the motion resulting from the period over which the MR data is acquired.
摘要翻译：磁共振重建包括运动补偿。反向一致的非刚性配准用于确定镜头之间的运动。动议被纳入重建。该并入补偿了获取MR数据的期间产生的运动。

16. 发明申请

US20120112751A1 METHOD AND MAGNETIC RESONANCE SYSTEM FOR COMBINING SIGNALS ACQUIRED FROM DIFFERENT ACQUISITION COILS 有权
标题翻译：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。

17. 发明申请

US20110103665A1 GENERATION OF MOVING VASCULAR MODELS AND BLOOD FLOW ANALYSIS FROM MOVING VASCULAR MODELS AND PHASE CONTRAST MRI 有权
标题翻译：运动血管模型和血液流动分析从移动血管模型和相位对比MRI的生成
公开(公告)号：US20110103665A1
公开(公告)日：2011-05-05
申请号：US12911829
申请日：2010-10-26
申请人： Mehmet Akif Gulsun , Andreas Greiser , Jens Guehring , Arne Littmann , Edgar Müller
发明人： Mehmet Akif Gulsun , Andreas Greiser , Jens Guehring , Arne Littmann , Edgar Müller
IPC分类号： G06K9/00
CPC分类号： G06T7/251 , G06T7/248 , G06T2207/10096 , G06T2207/30104
摘要： A method of deriving blood flow parameters from a moving three-dimensional (3D) model of a blood vessel includes determining a reference vascular cross-sectional plane through a location of a lumen in a moving 3D model of the blood vessel at one time within the model, determining a plurality of target vascular cross-sectional planes at multiple times via temporal tracking of the reference plane based on a displacement field, determining a plurality of contours based on an intersection of the target vascular cross-sectional planes with the moving 3D vessel model at multiple times within the model, and determining a blood flow parameter of the vessel from intersections of each contour of a given one of the times with a phase contrast magnetic resonance (PC-MRI) image of the blood vessel from the corresponding time.
摘要翻译：从血管的移动三维（3D）模型导出血液流动参数的方法包括：确定在血管的运动3D模型中的管腔位置的参考血管横截面平面模型，基于位移场，通过基准平面的时间跟踪多次确定多个目标血管横截面，基于目标血管横截面与移动3D血管的交点确定多个轮廓模型，并且从给定时间的每个轮廓与相应时间的血管的相位对比磁共振（PC-MRI）图像的交点确定血管的血流参数。

18. 发明授权

US09402561B2 Method and magnetic resonance apparatus for determination of patient movement during data acquisition 有权
标题翻译：用于确定数据采集期间患者运动的方法和磁共振装置
公开(公告)号：US09402561B2
公开(公告)日：2016-08-02
申请号：US11945325
申请日：2007-11-27
申请人： Gunnar Krueger , Arne Littmann
发明人： Gunnar Krueger , Arne Littmann
IPC分类号： A61B5/11 , A61B5/055 , A61B5/00 , G01R33/3415 , G01R33/565 , G01R33/567
CPC分类号： A61B5/055 , A61B5/11 , A61B5/7207 , G01R33/3415 , G01R33/56509 , G01R33/5673 , G01R33/5676
摘要： In a method and magnetic resonance (MR) apparatus for determination of movement of an examination subject during the acquisition of (MR) measurement data using at least two antenna elements that exhibit respectively different spatial positions, after each radiated excitation pulse a navigator signal is acquired in the measurement data and movement of the examination subject between two excitation pulses during the acquisition of the measurement data is determined from a change of the signal strength of the navigator signal in the at least two antenna elements and based on the respective spatial positions of the antenna elements.
摘要翻译：在用于使用至少两个呈现分别不同的空间位置的天线元件获取（MR）测量数据期间确定检查对象的移动的方法和磁共振（MR）装置中，在每个辐射的激励脉冲之后，获取导航信号在测量数据和测量数据获取期间的两个激励脉冲之间的测试对象的移动是根据至少两个天线元件中的导航信号的信号强度的变化，并且基于相应的空间位置天线元件

19. 发明申请

US20120087561A1 INTERACTION METHOD FOR REGIONS OF-INTEREST IN TIME SERIES IMAGES 有权
标题翻译：时间序列图像中的区域交互方法
公开(公告)号：US20120087561A1
公开(公告)日：2012-04-12
申请号：US13248309
申请日：2011-09-29
申请人： Christoph Guetter , Jens Gühring , Marie-Pierre Jolly , Arne Littmann , Manuela Rick , Michaela Schmidt , Hui Xue
发明人： Christoph Guetter , Jens Gühring , Marie-Pierre Jolly , Arne Littmann , Manuela Rick , Michaela Schmidt , Hui Xue
IPC分类号： G06K9/46
CPC分类号： G06T7/0083 , G06T7/12 , G06T7/174 , G06T2207/10016 , G06T2207/10072 , G06T2207/10116 , G06T2207/20104 , G06T2207/30004
摘要： A method for identifying a region of interest within a time sequence of images includes acquiring a time sequence of images comprising a plurality of image frames. Image segmentation is performed to segment a region of interest (ROI) from within each of the plurality of image frames of the time sequence of images. Manual edits are received for the ROI within one or more of the plurality of image frames. The manual edits are propagated to other image frames of the plurality of images. An extent to which each of the manual edits are propagated to other image frames is dependent upon a transformation function or deformation field used to propagate the manual edits and a weighing factor that is influenced by a distance in time between the other image frames and the frames that have been manually edited.
摘要翻译：用于识别图像的时间序列内的感兴趣区域的方法包括获取包括多个图像帧的图像的时间序列。执行图像分割以从图像的时间序列的多个图像帧的每一个内分割感兴趣区域（ROI）。对于多个图像帧中的一个或多个中的ROI，接收手动编辑。手动编辑被传播到多个图像的其他图像帧。每个手动编辑传播到其他图像帧的程度取决于用于传播手动编辑的变换函数或变形字段以及受其他图像帧和帧之间的时间距离的影响的称重因子已经被手动编辑。

20. 发明申请

US20100160766A1 MAGNETIC RESONANCE METHOD AND SYSTEM FOR FLOW MEASUREMENT 审中-公开
标题翻译：用于流量测量的磁共振方法和系统
公开(公告)号：US20100160766A1
公开(公告)日：2010-06-24
申请号：US12629375
申请日：2009-12-02
申请人： Andreas Greiser , Jens Guehring , Mehmet Akif Guelsuen , Arne Littmann , Peter Schmitt , Michael Zenge
发明人： Andreas Greiser , Jens Guehring , Mehmet Akif Guelsuen , Arne Littmann , Peter Schmitt , Michael Zenge
IPC分类号： A61B5/055
CPC分类号： A61B5/0263 , A61B5/055 , A61B5/489 , G01R33/543 , G01R33/546 , G01R33/56316 , G01R33/5635
摘要： In a method for flow measurement with a magnetic resonance system and a correspondingly designed magnetic resonance system angiography measurement data of a volume are obtained within a body to be examined, a vessel is determined depending on a user input by means of the angiography measurement data, dimensions and an orientation of the vessel are automatically determined from the angiography measurement data, a slice geometry for the flow measurement is automatically determined depending on the dimensions and the orientation, and the flow measurement is implemented using the slice geometry.
摘要翻译：在使用磁共振系统和相应设计的磁共振系统进行流量测量的方法中，在待检查的体内获得体积的血管造影测量数据，根据用户输入通过血管造影测量数据确定血管，根据血管造影测量数据自动确定容器的尺寸和取向，根据尺寸和取向自动确定流量测量的切片几何形状，并使用切片几何形状实现流量测量。

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