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1. 发明授权

US07663368B2 Arrangement for radiation of a radio-frequency field 有权
标题翻译：射频场辐射安排
公开(公告)号：US07663368B2
公开(公告)日：2010-02-16
申请号：US12018333
申请日：2008-01-23
申请人： Razvan Lazar , Wolfgang Renz , Thorsten Speckner
发明人： Razvan Lazar , Wolfgang Renz , Thorsten Speckner
IPC分类号： G01V3/00
CPC分类号： G01R33/341 , G01R33/3415 , G01R33/5659
摘要： An arrangement for radiation of a radio-frequency field into an examination subject has a local coil unit with a housing. An insulating dielectric material is embodied at least at one part of the housing in order to passively compensate an inhomogeneity of the B1 field that occurs in the examination subject. An adjustment arrangement allows for fixed but detachable provision of the insulating dielectric material at the housing part.
摘要翻译：用于将射频场辐射到检查对象中的布置具有带壳体的局部线圈单元。绝缘介电材料至少体现在壳体的一部分上，以便被动地补偿在检查对象中发生的B1场的不均匀性。调节装置允许绝缘电介质材料在壳体部分固定但可拆卸地设置。

2. 发明申请

US20080180102A1 ARRANGEMENT FOR RADIATION OF A RADIO-FREQUENCY FIELD 有权
标题翻译：无线电频率辐射的装置
公开(公告)号：US20080180102A1
公开(公告)日：2008-07-31
申请号：US12018333
申请日：2008-01-23
申请人： Razvan Lazar , Wolfgang Renz , Thorsten Speckner
发明人： Razvan Lazar , Wolfgang Renz , Thorsten Speckner
IPC分类号： G01R33/34
CPC分类号： G01R33/341 , G01R33/3415 , G01R33/5659
摘要： An arrangement for radiation of a radio-frequency field into an examination subject has a local coil unit with a housing. An insulating dielectric material is embodied at least at one part of the housing in order to passively compensate an inhomogeneity of the B1 field that occurs in the examination subject. An adjustment arrangement allows for fixed but detachable provision of the insulating dielectric material at the housing part.
摘要翻译：用于将射频场辐射到检查对象中的布置具有带壳体的局部线圈单元。绝缘介电材料至少体现在壳体的一部分上，以便被动地补偿在检查对象中发生的B1场的不均匀性。调节装置允许绝缘电介质材料在壳体部分固定但可拆卸地设置。

3. 发明申请

US20090192382A1 MAGNETIC RESONANCE SYSTEM, ANTENNA SYSTEM, METHOD FOR DESIGNING A MAGNETIC RESONANCE SYSTEM AND METHOD TO GENERATE MAGNETIC RESONANCE EXPOSURES 有权
标题翻译：磁共振系统，天线系统，用于设计磁共振系统的方法和产生磁共振曝光的方法
公开(公告)号：US20090192382A1
公开(公告)日：2009-07-30
申请号：US12358378
申请日：2009-01-23
申请人： Juergen Nistler , Wolfgang Renz , Thorsten Speckner
发明人： Juergen Nistler , Wolfgang Renz , Thorsten Speckner
IPC分类号： A61B5/055 , G01V3/00 , H01P11/00
CPC分类号： G01R33/34046 , G01R33/3415 , G01R33/3678 , G01R33/5659 , Y10T29/49016
摘要： A magnetic resonance system obtaining magnetic resonance exposures of an examination subject, has an examination tunnel, a whole-body antenna with two connection terminals. The whole-body antenna cylindrically extends around the examination tunnel along a longitudinal axis. The system has a radio-frequency supply device in order to respectively supply the whole-body antenna with radio-frequency signals for emission of a radio-frequency field in the examination tunnel. The radio-frequency supply device has a radio-frequency generator for generation of a radio-frequency signal, a signal splitter that divides a radio-frequency signal coming from the radio-frequency generator into two partial signals that are phase-shifted by 90° relative to one another. Two radio-frequency feed lines are connected with the two connection terminals of the whole-body antenna. Via these radio-frequency feed lines, the two partial signals are fed into the whole-body antenna. The whole-body antenna has an intrinsic transmission characteristic such that a radio-frequency field is emitted that is elliptically polarized in a defined manner in a plane lying perpendicular to the longitudinal axis (at least in the unloaded state of the examination tunnel).
摘要翻译：获得检查对象的磁共振曝光的磁共振系统具有检查隧道，具有两个连接端子的全身天线。全身天线沿着纵向轴线围绕检查隧道圆周延伸。该系统具有射频供给装置，以分别向全身天线提供用于在检查隧道中发射射频场的射频信号。射频供给装置具有用于产生射频信号的射频发生器，将来自射频发生器的射频信号分割为相移90°的两个部分信号的信号分离器相对于彼此。两根射频馈线与全身天线的两个连接端子连接。通过这些射频馈线，两个部分信号被馈送到全身天线。全身天线具有固有的传输特性，使得在垂直于纵向轴线的平面中（至少在检查隧道的无负载状态）中以限定的方式发射出被椭圆偏振的射频场。

4. 发明授权

US08362775B2 Magnetic resonance whole body antenna system, elliptically polarized with major ellipse axis tilted/non-horizontal at least when unoccupied by an examination subject 有权
标题翻译：磁共振全身天线系统，椭圆偏心，主椭圆轴倾斜/非水平，至少在被检查对象占空
公开(公告)号：US08362775B2
公开(公告)日：2013-01-29
申请号：US12358378
申请日：2009-01-23
申请人： Juergen Nistler , Wolfgang Renz , Thorsten Speckner
发明人： Juergen Nistler , Wolfgang Renz , Thorsten Speckner
IPC分类号： G01V3/00 , A61B5/055
CPC分类号： G01R33/34046 , G01R33/3415 , G01R33/3678 , G01R33/5659 , Y10T29/49016
摘要： A magnetic resonance system obtaining magnetic resonance exposures of an examination subject, has an examination tunnel, a whole-body antenna with two connection terminals. The whole-body antenna cylindrically extends around the examination tunnel along a longitudinal axis. The system has a radio-frequency supply device in order to respectively supply the whole-body antenna with radio-frequency signals for emission of a radio-frequency field in the examination tunnel. The radio-frequency supply device has a radio-frequency generator for generation of a radio-frequency signal, a signal splitter that divides a radio-frequency signal coming from the radio-frequency generator into two partial signals that are phase-shifted by 90° relative to one another. Two radio-frequency feed lines are connected with the two connection terminals of the whole-body antenna. Via these radio-frequency feed lines, the two partial signals are fed into the whole-body antenna. The whole-body antenna has an intrinsic transmission characteristic such that a radio-frequency field is emitted that is elliptically polarized in a defined manner in a plane lying perpendicular to the longitudinal axis (at least in the unloaded state of the examination tunnel).
摘要翻译：获得检查对象的磁共振曝光的磁共振系统具有检查隧道，具有两个连接端子的全身天线。全身天线沿着纵向轴线围绕检查隧道圆周延伸。该系统具有射频供给装置，以分别向全身天线提供用于在检查隧道中发射射频场的射频信号。射频供给装置具有用于产生射频信号的射频发生器，将来自射频发生器的射频信号分割为相移90°的两个部分信号的信号分离器相对于彼此。两根射频馈线与全身天线的两个连接端子连接。通过这些射频馈线，两个部分信号被馈送到全身天线。全身天线具有固有的传输特性，使得在垂直于纵向轴线的平面中（至少在检查隧道的无负载状态）中以限定的方式发射出被椭圆偏振的射频场。

5. 发明申请

US20170205483A1 METHODS FOR SETTING A MRI SEQUENCE 有权
公开(公告)号：US20170205483A1
公开(公告)日：2017-07-20
申请号：US15407141
申请日：2017-01-16
申请人： Thorsten Feiweier , Andreas Greiser , Uvo Hölscher , Thorsten Speckner , David Grodzki , Mathias Nittka , Daniel Nico Splitthoff
发明人： Thorsten Feiweier , Andreas Greiser , Uvo Hölscher , Thorsten Speckner , David Grodzki , Mathias Nittka , Daniel Nico Splitthoff
IPC分类号： G01R33/54 , G01R33/28
摘要： A method for setting a MRI sequence, a magnetic resonance device, and a computer program product are provided. The method includes providing, by a limitation unit, at least one limitation; providing, by a parameter provision unit, a plurality of parameters of the sequence, wherein at least one parameter of the plurality of parameters is assigned to a default parameter value; selecting, by a selection unit, a parameter of the plurality of parameters; determining, by a simulation unit, at least one sequential pattern based on at least one default parameter value of the default parameter values; determining, by an analysis unit, a permissible range of parameter values of the selected parameter based on at least one sequential pattern and the at least one limitation; and establishing, by an establishment unit, a new parameter value of the selected parameter within the permissible range of the parameter values.

6. 发明授权

US09194926B2 Method for operating a coil and a monitoring module 有权
标题翻译：操作线圈和监控模块的方法
公开(公告)号：US09194926B2
公开(公告)日：2015-11-24
申请号：US13769315
申请日：2013-02-16
申请人： Peter Dietz , Georg Pirkl , Thorsten Speckner
发明人： Peter Dietz , Georg Pirkl , Thorsten Speckner
IPC分类号： G01R33/54 , G01R33/385
CPC分类号： G01R33/54 , G01R33/3854
摘要： A method for operating a coil, through which a varying current flows, is provided. Mechanical resonance responses of the coil are recorded and are modeled by an electrical resonant circuit model. A check is made as to whether a varying current that is to be sent through the coil evokes a resonant response in the electrical resonant circuit model. The current flow through the coil is blocked if the resonant response exceeds a predefined limit value.
摘要翻译：提供了用于操作流过变流的线圈的方法。记录线圈的机械共振响应，并通过电谐振电路模型建模。检查通过线圈发送的变化的电流是否在电谐振电路模型中引起谐振响应。如果谐振响应超过预定极限值，则流过线圈的电流将被阻塞。

7. 发明申请

US20130320977A1 METHOD AND APPARATUS TO DETERMINE A SUBJECT-SPECIFIC B1 DISTRIBUTION OF AN EXAMINATION SUBJECT IN A MEASUREMENT VOLUME OF A MAGNETIC RESONANCE APPARATUS 有权
标题翻译：用于确定磁共振装置的测量体积中的检查对象的主要特定B1分布的方法和装置
公开(公告)号：US20130320977A1
公开(公告)日：2013-12-05
申请号：US13906649
申请日：2013-05-31
申请人： Michael Koehler , Thorsten Speckner
发明人： Michael Koehler , Thorsten Speckner
IPC分类号： G01R33/32 , G01R33/44
CPC分类号： G01R33/32 , G01R33/246 , G01R33/44
摘要： In a magnetic resonance method and apparatus to determine a subject-specific B1 distribution of an examination subject in a measurement volume in the magnetic resonance apparatus, a first measurement data set of the examination subject is acquired using a first pulse sequence, a second measurement data set of the examination subject is acquired using a second pulse sequence, and a third measurement data set of the examination subject is acquired using a third pulse sequence. A first phase is determined from the first measurement data set, a second phase from the second measurement data set and a third phase from the third measurement data set. A relevant phase shift is calculated from the first phase, the second phase and the third phase, and the B1 distribution are determined from the calculated relevant phase shift.
摘要翻译：在用于确定磁共振装置的测量体积中的检查对象的受试者特异性B1分布的磁共振方法和装置中，使用第一脉冲序列，第二测量数据获取检查对象的第一测量数据集使用第二脉冲序列获取检查对象的集合，并且使用第三脉冲序列获取检查对象的第三测量数据集。从第一测量数据集，第二测量数据集的第二阶段和第三测量数据集的第三阶段确定第一阶段。从第一阶段，第二阶段和第三阶段计算相关的相移，并且从计算的相关相移确定B1分布。

8. 发明申请

US20130082705A1 MAGNETIC RESONANCE SYSTEM AND METHOD FOR TIME SYNCHRONIZATION OF DIFFERENT COMPONENTS OF A MAGNETIC RESONANCE SYSTEM 有权
标题翻译：磁共振系统和磁共振系统的不同组件的时间同步化的磁共振系统和方法
公开(公告)号：US20130082705A1
公开(公告)日：2013-04-04
申请号：US13630258
申请日：2012-09-28
申请人： Wilfried Landschuetz , Thorsten Speckner
发明人： Wilfried Landschuetz , Thorsten Speckner
IPC分类号： G01R33/54 , G01R33/341
CPC分类号： G01R33/565 , A61B5/055 , G01R33/5617
摘要： A method for time synchronization of various components of a magnetic resonance system includes generating a series of amplitude-modulated radio-frequency pulses and associated gradient fields to deflect the magnetization of a slice detecting at least two spin signals, determining a phase difference between two of the spin signals, processing the phase difference in order to determine at least one time shift between two of the following variables that are generated by different components of the magnetic resonance system, an envelope of the amplitude-modulated radio-frequency pulses, a radio-frequency portion of the amplitude-modulated radio-frequency pulses, and one or more gradient fields, and synchronizing the associated components of the magnetic resonance system depending on the at least one time shift.
摘要翻译：用于磁共振系统的各种部件的时间同步的方法包括产生一系列幅度调制的射频脉冲和相关联的梯度场以偏转检测至少两个自旋信号的切片的磁化，确定两个之间的相位差自旋信号，处理相位差以便确定由磁共振系统的不同部件产生的以下两个变量之间的至少一个时移，调幅射频脉冲的包络，幅度调制的射频脉冲的频率部分和一个或多个梯度场，并且根据至少一个时移来同步磁共振系统的相关分量。

9. 发明申请

US20110187367A1 METHOD AND MAGNETIC RESONANCE SYSTEM TO REDUCE DISTORTIONS IN DIFFUSION IMAGING 有权
标题翻译：方法和磁共振系统减少扩散成像中的失真
公开(公告)号：US20110187367A1
公开(公告)日：2011-08-04
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： G01R33/44
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。

10. 发明申请

US20090146657A1 Method for processing a distortion-corrected 2d or 3d reconstruction image recorded by a magnetic resonance device 有权
标题翻译：用于处理由磁共振装置记录的失真校正的2d或3d重建图像的方法
公开(公告)号：US20090146657A1
公开(公告)日：2009-06-11
申请号：US11989243
申请日：2006-07-13
申请人： Franz Hebrank , Thorsten Speckner , Axel vom Endt
发明人： Franz Hebrank , Thorsten Speckner , Axel vom Endt
IPC分类号： G01R33/565 , G06K9/40
CPC分类号： G01R33/56518
摘要： In one embodiment of the present invention, a method for processing a 2D or 3D reconstruction image is disclosed which is recorded by a magnetic resonance device, including a gradient coil that generates a gradient field, and is distortion—corrected with regard to a given non-linearity—leading to an image distortion—of the gradient field using an algorithm that processes the measurement signals at different measurement points lying in the imaging volume, which algorithm, with respect to each signal processed by it, processes the first input value describing the real gradient field given at the real measurement point of the signal, in which method, for inverse transformation of the distortion-corrected reconstruction image into a distortion-uncorrected reconstruction image, use is made of the first algorithm or a second algorithm corresponding to the first algorithm, which, with respect to each signal processed by it, is given as second input value such a value which describes a fictitious gradient field at the respective distorted measurement point at which the processed signal appears, which is increased or decreased by the non-linear field component of the real gradient field compared with the linear ideal gradient field.
摘要翻译：在本发明的一个实施例中，公开了一种用于处理2D或3D重建图像的方法，其由磁共振装置记录，所述磁共振装置包括产生梯度场的梯度线圈，并且对于给定非对称 - 使用处理在成像体积中的不同测量点处的测量信号的算法，导致梯度场的图像失真，该算法相对于由其处理的每个信号处理描述第一输入值的第一输入值在该信号的实际测量点处给出的实际梯度场，其中用于将失真校正的重建图像逆变换为失真未校正的重建图像，使用第一算法或对应于第一算法的第二算法算法，其对于由其处理的每个信号，被给予为第二输入值，例如描述虚构的值在经过处理的信号出现的相应变形的测量点处，与线性理想梯度场相比，实际梯度场的非线性场分量增加或减小。

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