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1. 发明申请

US20110052031A1 METHOD AND MAGNETIC RESONANCE SYSTEM TO CORRECT DISTORTIONS IN IMAGE DATA 失效
标题翻译：用于校正图像数据中的失真的方法和磁共振系统
公开(公告)号：US20110052031A1
公开(公告)日：2011-03-03
申请号：US12874592
申请日：2010-09-02
申请人： Thorsten Feiweier , Stefan Huwer
发明人： Thorsten Feiweier , Stefan Huwer
IPC分类号： G06K9/00 , G01R33/48
CPC分类号： G01R33/56518 , A61B5/055 , A61B5/7207 , G01R33/56341
摘要： In a method for correction of distortions in image data in a diffusion imaging, the image data are acquired with an imaging MRT measurement for a predetermined diffusion weighting and map a predetermined image segment. A diffusion model for the image segment is determined. Output image data are determined for the image segment such that the output image data are essentially free of distortions caused by diffusion weighting. Reference image data are estimated for the predetermined diffusion weighting for the image segment based on the output image data and the diffusion model. The acquired image data are compared with the reference image data and the acquired image data are corrected based on the comparison.
摘要翻译：在用于校正扩散成像中的图像数据中的失真的方法中，通过用于预定扩散加权的成像MRT测量获取图像数据并映射预定图像片段。确定图像段的扩散模型。为图像片段确定输出图像数据，使得输出图像数据基本上没有由扩散加权引起的失真。基于输出图像数据和扩散模型，针对图像片段的预定扩散加权来估计参考图像数据。将获取的图像数据与参考图像数据进行比较，并且基于比较来校正所获取的图像数据。

2. 发明授权

US09250307B2 Magnetic resonance system and method to generate diffusion information 有权
标题翻译：磁共振系统和生成扩散信息的方法
公开(公告)号：US09250307B2
公开(公告)日：2016-02-02
申请号：US13439050
申请日：2012-04-04
申请人： Stefan Huwer , David Andrew Porter
发明人： Stefan Huwer , David Andrew Porter
IPC分类号： A61B5/055 , G01R33/34 , G01R33/563 , G01R33/565 , G06T5/50
CPC分类号： G01R33/56341 , G01R33/56509 , G01R33/56536 , G06T5/50 , G06T2207/10088 , G06T2207/30008 , G06T2207/30016
摘要： In a magnetic resonance (MR) method and system for the generation of diffusion information, diffusion-weighted MR images of an examination subject are generated, each image being generated using an individual diffusion gradient. The diffusion gradients, and therefore the MR images, are sorted such that, after the sorting, a predefined number of diffusion gradients respectively forms a group. Each diffusion gradient belongs to at least one of these groups, and the diffusion gradients of the respective same group are all as linearly independent of one another as possible. The MR images whose diffusion gradients form a group are assembled into an MR result image. Spatial transformations between the MR result images are determined, and the MR images are modified using these spatial transformations. The diffusion information is formed with the aid of the modified MR images.
摘要翻译：在用于产生扩散信息的磁共振（MR）方法和系统中，生成检查对象的扩散加权MR图像，每个图像使用单独的扩散梯度来生成。扩散梯度，因此MR图像被分类，使得在分选之后，预定数量的扩散梯度分别形成一组。每个扩散梯度属于这些组中的至少一个，并且相应组的扩散梯度尽可能地彼此线性地相互独立。其扩散梯度形成组的MR图像被组装成MR结果图像。确定MR结果图像之间的空间变换，并使用这些空间变换修改MR图像。扩散信息借助于改进的MR图像形成。

3. 发明授权

US08548217B2 Method and magnetic resonance system to correct distortions in image data 失效
标题翻译：方法和磁共振系统校正图像数据中的失真
公开(公告)号：US08548217B2
公开(公告)日：2013-10-01
申请号：US12874592
申请日：2010-09-02
申请人： Thorsten Feiweier , Stefan Huwer
发明人： Thorsten Feiweier , Stefan Huwer
IPC分类号： G06K9/00
CPC分类号： G01R33/56518 , A61B5/055 , A61B5/7207 , G01R33/56341
摘要： In a method for correction of distortions in image data in a diffusion imaging, the image data are acquired with an imaging MRT measurement for a predetermined diffusion weighting and map a predetermined image segment. A diffusion model for the image segment is determined. Output image data are determined for the image segment such that the output image data are essentially free of distortions caused by diffusion weighting. Reference image data are estimated for the predetermined diffusion weighting for the image segment based on the output image data and the diffusion model. The acquired image data are compared with the reference image data and the acquired image data are corrected based on the comparison.
摘要翻译：在用于校正扩散成像中的图像数据中的失真的方法中，通过用于预定扩散加权的成像MRT测量获取图像数据并映射预定图像片段。确定图像段的扩散模型。为图像片段确定输出图像数据，使得输出图像数据基本上没有由扩散加权引起的失真。基于输出图像数据和扩散模型，针对图像片段的预定扩散加权来估计参考图像数据。将获取的图像数据与参考图像数据进行比较，并且基于比较来校正所获取的图像数据。

4. 发明申请

US20120259199A1 MAGNETIC RESONANCE SYSTEM AND METHOD TO GENERATE DIFFUSION INFORMATION 有权
标题翻译：磁共振系统和产生扩散信息的方法
公开(公告)号：US20120259199A1
公开(公告)日：2012-10-11
申请号：US13439050
申请日：2012-04-04
申请人： Stefan Huwer , David Andrew Porter
发明人： Stefan Huwer , David Andrew Porter
IPC分类号： A61B5/055 , G01R33/34
CPC分类号： G01R33/56341 , G01R33/56509 , G01R33/56536 , G06T5/50 , G06T2207/10088 , G06T2207/30008 , G06T2207/30016
摘要： In a magnetic resonance (MR) method and system for the generation of diffusion information, diffusion-weighted MR images of an examination subject are generated, each image being generated using an individual diffusion gradient. The diffusion gradients, and therefore the MR images, are sorted such that, after the sorting, a predefined number of diffusion gradients respectively forms a group. Each diffusion gradient belongs to at least one of these groups, and the diffusion gradients of the respective same group are all as linearly independent of one another as possible. The MR images whose diffusion gradients form a group are assembled into an MR result image. Spatial transformations between the MR result images are determined, and the MR images are modified using these spatial transformations. The diffusion information is formed with the aid of the modified MR images.
摘要翻译：在用于产生扩散信息的磁共振（MR）方法和系统中，生成检查对象的扩散加权MR图像，每个图像使用单独的扩散梯度来生成。扩散梯度，因此MR图像被分类，使得在分选之后，预定数量的扩散梯度分别形成一组。每个扩散梯度属于这些组中的至少一个，并且相应组的扩散梯度尽可能地彼此线性地相互独立。其扩散梯度形成组的MR图像被组装成MR结果图像。确定MR结果图像之间的空间变换，并使用这些空间变换修改MR图像。扩散信息借助于改进的MR图像形成。

5. 发明申请

US20110268146A1 GRAPHITE ELECTRODE WITH AN ELECTRICAL CONNECTING ELEMENT 审中-公开
标题翻译：具有电气连接元件的石墨电极
公开(公告)号：US20110268146A1
公开(公告)日：2011-11-03
申请号：US13143957
申请日：2010-01-15
申请人： Wolfgang Reiser , Stefan Huwer
发明人： Wolfgang Reiser , Stefan Huwer
IPC分类号： H05B7/06 , H01B5/00
CPC分类号： H05B7/101
摘要： The invention relates to a graphite electrode with an electrical connecting element as well as to a furnace for graphitizing carbon-containing materials by means of such graphite electrodes. According to the invention, it was found that the drawbacks known from the prior art are eliminated by establishing an electrical connection between the graphite electrode and the connecting element by means of wedge-shaped contacting elements. The contact pressure between the contact element and the wedge-shaped surface on the graphite electrode required for electrical conductivity of the interface can be influenced by means of the wedge angle and the contact surface.
摘要翻译：本发明涉及具有电连接元件的石墨电极以及借助于这种石墨电极石墨化含碳材料的炉子。根据本发明，已经发现，通过利用楔形接触元件在石墨电极和连接元件之间建立电连接来消除现有技术已知的缺点。接触元件与界面导电性所需的石墨电极上的楔形表面之间的接触压力可以通过楔角和接触面来影响。

6. 发明申请

US20140091790A1 METHOD AND MAGNETIC RESONANCE SYSTEM FOR TIME-DEPENDENT INTENSITY CORRECTION OF DIFFUSION-WEIGHTED MR IMAGES 有权
标题翻译：用于时间依赖强度校正的扩散加权MR图像的方法和磁共振系统
公开(公告)号：US20140091790A1
公开(公告)日：2014-04-03
申请号：US14043985
申请日：2013-10-02
申请人： Stefan Huwer , David Andrew Porter
发明人： Stefan Huwer , David Andrew Porter
IPC分类号： G01R33/56
CPC分类号： G01R33/56 , G01R33/56341 , G01R33/5659
摘要： In a method and magnetic resonance (MR) apparatus for time-dependent intensity correction of diffusion-weighted MR images that are acquired with a sequence of different diffusion gradient fields, different diffusion gradient fields are associated with at least one group, with the association with groups being established so that the diffusion gradient fields that are associated with the same group satisfy an orthogonality criterion. For each group, an MR result image is created from the MR images associated with the group, such that the MR result image has a suppressed direction dependency of the diffusion weighting in comparison to the constituent MR images. An intensity correction can be made based on the multiple MR result images and used to correct the constituent MR images.
摘要翻译：在用不同扩散梯度场的序列获取的扩散加权MR图像的时间依赖性强度校正的方法和磁共振（MR）装置中，不同的扩散梯度场与至少一个组相关联，与使得与相同组相关联的扩散梯度场满足正交性标准。对于每个组，从与组相关联的MR图像创建MR结果图像，使得与成像MR图像相比，MR结果图像具有抑制的扩散加权的方向依赖性。可以基于多个MR结果图像进行强度校正，并用于校正组成的MR图像。

7. 发明授权

US08508226B2 Method and magnetic resonance system to reduce distortions in diffusion imaging 有权
标题翻译：方法和磁共振系统，以减少扩散成像中的失真
公开(公告)号：US08508226B2
公开(公告)日：2013-08-13
申请号：US13020302
申请日：2011-02-03
申请人： Thorsten Feiweier , Stefan Huwer , Tony Hyun Kim , David Andrew Porter , Thorsten Speckner
发明人： Thorsten Feiweier , Stefan Huwer , Tony Hyun Kim , David Andrew Porter , Thorsten Speckner
IPC分类号： G01V3/00
CPC分类号： G01R33/44
摘要： In a method and magnetic resonance apparatus to reduce distortions in magnetic resonance diffusion imaging, a magnetic resonance data acquisition system is operated to acquire magnetic resonance data in a first measurement with a first diffusion weighting, and to acquire magnetic resonance data in a second measurement with a second, different diffusion weighting. A non-linear, system-specific distortion-correcting function is determined on the basis of system-specific information that is specific to said magnetic resonance data acquisition system. Correction parameters are calculated to correct distortions in subsequently-acquired diffusion-weighted magnetic resonance images, based on the data acquired in the first and second measurements with the system-specific distortion-correcting function applied thereto. The subsequently-acquired diffusion-weighted magnetic resonance images are corrected using the correction parameters to at least reduce distortions therein.
摘要翻译：在减小磁共振扩散成像中的失真的方法和磁共振装置中，磁共振数据采集系统被操作以在具有第一扩散加权的第一测量中采集磁共振数据，并且在第二测量中采集磁共振数据，第二个不同的扩散加权。基于特定于所述磁共振数据采集系统的系统特定信息来确定非线性系统特定的失真校正功能。基于在第一和第二测量中采集的数据与应用于其的系统特定的失真校正功能，计算校正参数以校正随后获取的扩散加权磁共振图像中的失真。使用校正参数来校正后续获取的扩散加权磁共振图像，以至少减少其中的失真。

8. 发明授权

US08283925B2 Magnetic resonance method and apparatus to reduce distortions in diffusion imaging 有权
标题翻译：磁共振方法和减少扩散成像失真的装置
公开(公告)号：US08283925B2
公开(公告)日：2012-10-09
申请号：US12650757
申请日：2009-12-31
申请人： Karin Auslender , Thorsten Feiweier , Stefan Huwer
发明人： Karin Auslender , Thorsten Feiweier , Stefan Huwer
IPC分类号： G01V3/00
CPC分类号： G01R33/56341 , A61B5/055 , A61B5/7207 , G01R33/56518
摘要： In a method and magnetic resonance (MR) system for correction of image distortions that occur in acquisitions of diffusion-weighted MR images of an examination subject a first adjustment measurement with a first diffusion weighting is implemented, a second adjustment measurement with a second diffusion weighting is implemented and correction parameters to de-skew diffusion-weighted MR images are automatically calculated in a computer on the basis of the two adjustment measurements. One of the two adjustment measurements is implemented with a predetermined diffusion weighting in three orthogonal diffusion directions, and correction parameters are determined for the three orthogonal diffusion directions.
摘要翻译：在用于校正在检查对象的扩散加权MR图像的采集中发生的图像失真的方法和磁共振（MR）系统中，实现具有第一扩散加权的第一调整测量，具有第二扩散加权的第二调整测量并且基于两个调整测量在计算机中自动计算用于去偏斜扩散加权的MR图像的校正参数。两个调整测量中的一个在三个正交扩散方向上以预定的扩散加权来实现，并且为三个正交扩散方向确定校正参数。

9. 发明授权

US08164335B2 Method for acquiring and displaying medical image data 有权
标题翻译：用于获取和显示医学图像数据的方法
公开(公告)号：US08164335B2
公开(公告)日：2012-04-24
申请号：US12591206
申请日：2009-11-12
申请人： Stefan Huwer
发明人： Stefan Huwer
IPC分类号： G01V3/00
CPC分类号： G01R33/4833 , G01R33/4838
摘要： A method is disclosed for acquiring and displaying image data, in particular MR image data. In at least one embodiment, the method includes scanning an examination object by way of a magnetic resonance imaging scanner and generating first (MR) image data of the examination object, wherein scanning parameters during the scan are selected such that the regions of interest in the scanned examination object have high image data values, and the regions which are not of interest in the examination object have, relative thereto, low image data values in the first MR image data; generating a mask on the basis of the first image data by means of which mask regions in the first MR image data which have the low image data values can be hidden; scanning the examination object by way of a medical imaging system and generating second image data of the examination object; applying the mask to the first and/or second image data; and displaying the first and/or second image data processed by the mask.
摘要翻译：公开了一种用于获取和显示图像数据，特别是MR图像数据的方法。在至少一个实施例中，该方法包括通过磁共振成像扫描仪扫描检查对象并生成检查对象的第一（MR）图像数据，其中选择扫描期间的扫描参数，使得在扫描检查对象具有高图像数据值，并且相对于此，检查对象中不感兴趣的区域具有第一MR图像数据中的低图像数据值; 基于第一图像数据生成掩模，通过其可以隐藏具有低图像数据值的第一MR图像数据中的掩模区域; 通过医学成像系统扫描检查对象并产生检查对象的第二图像数据; 将所述掩模应用于所述第一和/或第二图像数据; 以及显示由掩模处理的第一和/或第二图像数据。

10. 发明申请

US20100171498A1 MAGNETIC RESONANCE METHOD AND APPARATUS TO REDUCE DISTORTIONS IN DIFFUSION IMAGING 有权
标题翻译：磁共振方法和装置减少扩散成像中的失真
公开(公告)号：US20100171498A1
公开(公告)日：2010-07-08
申请号：US12650757
申请日：2009-12-31
申请人： Karin Auslender , Thorsten Feiweier , Stefan Huwer
发明人： Karin Auslender , Thorsten Feiweier , Stefan Huwer
IPC分类号： G01R33/48 , G06K9/00
CPC分类号： G01R33/56341 , A61B5/055 , A61B5/7207 , G01R33/56518
摘要： In a method and magnetic resonance (MR) system for correction of image distortions that occur in acquisitions of diffusion-weighted MR images of an examination subject a first adjustment measurement with a first diffusion weighting is implemented, a second adjustment measurement with a second diffusion weighting is implemented and correction parameters to de-skew diffusion-weighted MR images are automatically calculated in a computer on the basis of the two adjustment measurements. One of the two adjustment measurements is implemented with a predetermined diffusion weighting in three orthogonal diffusion directions, and correction parameters are determined for the three orthogonal diffusion directions.
摘要翻译：在用于校正在检查对象的扩散加权MR图像的采集中发生的图像失真的方法和磁共振（MR）系统中，实现具有第一扩散加权的第一调整测量，具有第二扩散加权的第二调整测量并且基于两个调整测量在计算机中自动计算用于去偏斜扩散加权的MR图像的校正参数。两个调整测量中的一个在三个正交扩散方向上以预定的扩散加权来实现，并且为三个正交扩散方向确定校正参数。

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