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81. 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。

82. 发明授权

US07634303B2 Dielectric element and method for generating a magnetic resonance image therewith 失效
标题翻译：用于产生磁共振图像的电介质元件和方法
公开(公告)号：US07634303B2
公开(公告)日：2009-12-15
申请号：US11768531
申请日：2007-06-26
申请人： Yvonne Candidus , Thorsten Feiweier , Wilhelm Horger , Jürgen Huber , Razvan Lazar , Melanie Schmitt , Lothar Schön
发明人： Yvonne Candidus , Thorsten Feiweier , Wilhelm Horger , Jürgen Huber , Razvan Lazar , Melanie Schmitt , Lothar Schön
IPC分类号： A61B5/05 , G01V3/00 , B23P17/04
CPC分类号： G01R33/28 , G01R33/34 , G01R33/5659 , Y10T29/49
摘要： A dielectric element is formed of a dielectric material exhibiting a magnetic resonance relaxation time, with a relaxation agent incorporated in the dielectric material that reduces the relaxation time of the dielectric material. The dielectric element is adapted for placement on a subject while magnetic resonance data are acquired from the subject, and locally influences the B1 field distribution in the subject during the acquisition of magnetic resonance data.
摘要翻译：电介质元件由表现出磁共振弛豫时间的电介质材料形成，并且电介质材料中包含减轻电介质材料弛豫时间的松弛剂。介电元件适于放置在被摄体上，同时从受检者获取磁共振数据，并且在获取磁共振数据期间局部影响对象中的B1场分布。

83. 发明授权

US07603157B2 Method and magnetic resonance imaging apparatus for compensating contrast inhomogeneities in magnetic resonance images 失效
标题翻译：用于补偿磁共振图像中的对比度不均匀性的方法和磁共振成像装置
公开(公告)号：US07603157B2
公开(公告)日：2009-10-13
申请号：US10921583
申请日：2004-08-19
申请人： Thorsten Feiweier , Franz Hebrank
发明人： Thorsten Feiweier , Franz Hebrank
IPC分类号： A61B5/05
CPC分类号： G01R33/5659
摘要： In a method and magnetic resonance apparatus for compensation of contrast inhomogeneities in magnetic resonance images caused by spatial distributions of the radio frequency field associated with the radio frequency pulses that are emitted in order to acquire magnetic resonance (MR) data, multiple individual MR images of a particular region of a subject are recorded with different radio frequency pulse sequences leading to different flip angles. A common contrast-homogenized image for the affected region then is generated based on the different individual images, so that within the contrast-homogenized image, intensity variations due to a distribution of the flip angle are smaller than in the individual images, at least in some areas.
摘要翻译：在一种方法和磁共振装置中，用于补偿与为了获得磁共振（MR）数据而发射的射频脉冲相关联的射频场的空间分布引起的磁共振图像中的对比度不均匀性，用不同的射频脉冲序列记录被摄体的特定区域，导致不同的翻转角度。然后基于不同的单独图像生成受影响区域的常见对比均匀化图像，使得在对比均匀化图像内，由于翻转角分布引起的强度变化小于各个图像中的强度变化，至少在一些地区。

84. 发明申请

US20090048507A1 Method and apparatus for imaging functional and electrical activities of the brain 审中-公开
标题翻译：用于成像大脑功能和电活动的方法和装置
公开(公告)号：US20090048507A1
公开(公告)日：2009-02-19
申请号：US12222210
申请日：2008-08-05
申请人： Thorsten Feiweier , Diana Martin , Gunther Platsch , Sebastian Schmidt , Kristin Schmiedehausen , Michael Szimtenings
发明人： Thorsten Feiweier , Diana Martin , Gunther Platsch , Sebastian Schmidt , Kristin Schmiedehausen , Michael Szimtenings
IPC分类号： A61B5/055 , A61B5/0476 , G01V3/00 , A61B6/00
CPC分类号： A61B6/037 , A61B5/0402 , A61B5/0476 , A61B5/4094 , A61B6/032 , A61B6/501 , A61B6/5247 , G06T7/30
摘要： A method and an apparatus for imaging functional and electrical activities of the brain are disclosed. In order to allow improved relative positional determination of the epileptogenic focus with reference to the EEG electrodes, a positron emission tomography measurement using at least one radiation detector, and a magnetic resonance imaging measurement using at least one coil for generating a basic magnetic field, at least one gradient coil and a radio-frequency antenna device are undertaken in at least one embodiment. In addition, in at least one embodiment an electroencephalography measurement using a plurality of electrodes for acquiring spatial and temporal changes of the electrical activities of the brain and a computed tomography measurement using at least one x-ray source and at least one x-ray detector are carried out. By way of an evaluation apparatus in at least one embodiment, a spatial correlation between the computed tomography measurement and the magnetic resonance imaging measurement is undertaken, so as to result in registration between the electroencephalography measurement and the positron emission tomography measurement.
摘要翻译：公开了一种用于成像大脑的功能和电活动的方法和装置。为了允许参考EEG电极改进癫痫发生焦点的相对位置确定，使用至少一个辐射检测器的正电子发射断层摄影测量和使用至少一个线圈产生基本磁场的磁共振成像测量，在至少一个实施例中进行至少一个梯度线圈和射频天线装置。另外，在至少一个实施例中，使用多个电极获取脑的电活动的空间和时间变化以及使用至少一个X射线源和至少一个X射线检测器的计算机断层摄影测量的脑电图测量被执行。通过至少一个实施例中的评估装置，进行计算机断层摄影测量和磁共振成像测量之间的空间相关性，以便导致脑电图测量与正电子发射断层摄影测量之间的对准。

85. 发明申请

US20080290281A1 Method for data acquisition and/or data evaluation during a functional brains examination with the aid of a combined magnetic resonance/PET unit 有权
标题翻译：借助于组合磁共振/ PET单元在功能性大脑检查期间进行数据采集和/或数据评估的方法
公开(公告)号：US20080290281A1
公开(公告)日：2008-11-27
申请号：US12153487
申请日：2008-05-20
申请人： Diana Martin , Thorsten Feiweier , Gunther Platsch , Kristin Schmiedehausen , Sebastian Schmidt , Michael Szimtenings
发明人： Diana Martin , Thorsten Feiweier , Gunther Platsch , Kristin Schmiedehausen , Sebastian Schmidt , Michael Szimtenings
IPC分类号： G01T1/164
CPC分类号： G01R33/481 , A61B6/501 , A61B6/5247 , A61B2090/364 , G01R33/4806
摘要： A method is disclosed for data acquisition and/or data evaluation during a functional brain examination with the aid of a combined magnetic resonance/PET unit. In at least one embodiment, functional image data of the brain are acquired in at least two activity states with the aid of both modalities. Further, magnetic resonance image data and PET image data are acquired within time windows determined by the activity states, the acquisition mode and/or the image data being synchronized as a function of a timing of stimulations determining the activity states.
摘要翻译：公开了一种借助于组合磁共振/ PET单元在功能性脑部检查期间进行数据采集和/或数据评估的方法。在至少一个实施例中，借助于两种模式在至少两个活动状态中获取大脑的功能图像数据。此外，在由活动状态确定的时间窗内获取磁共振图像数据和PET图像数据，获取模式和/或图像数据作为确定活动状态的刺激的定时的函数被同步。

86. 发明申请

US20080061779A1 MAGNETIC RESONANCE IMAGING DATA ACQUISITION SEQUENCE AND APPARATUS 有权
标题翻译：磁共振成像数据采集序列和装置
公开(公告)号：US20080061779A1
公开(公告)日：2008-03-13
申请号：US11851462
申请日：2007-09-07
申请人： Thorsten Feiweier
发明人： Thorsten Feiweier
IPC分类号： G01V3/00 , G06K9/00
CPC分类号： G01R33/561 , G01R33/4818 , G01R33/4824 , G01R33/56509
摘要： In a measurement sequence and apparatus for three-dimensional magnetic resonance imaging, in which an acquisition of measurement data ensues by scanning multiple lines in k-space; and the number of k-space lines is apportioned among a number of partial acquisitions so that scanning of associated k-space lines occurs in each partial acquisition, the k-space lines are associated with the partial acquisitions such that the association corresponds to the following association rule: (a) evaluation of each k-space line with an interval measurement that characterizes the interval of the respective k-space line relative to the k-space center, (b) arrangement of the k-space lines to be scanned in an order dependent on the interval measure, (c) grouping of the k-space lines arranged in order into a number of groups with a number of successive k-space lines being combined into a group, and (d) association of the k-space lines with the partial acquisitions by, for each group, the k-space lines combined into this group are apportioned to different partial acquisitions.
摘要翻译：在用于三维磁共振成像的测量序列和装置中，其中通过扫描k空间中的多条线来进行测量数据的采集; 并且在多次部分获取中分配k空间线的数量，使得在每个部分采集中发生相关联的k空间线的扫描，所述k空间线与部分采集相关联，使得该关联对应于以下关联规则：（a）用表征各个k空间线相对于k空间中心的间隔的间隔测量的每个k空间线的评估，（b）要扫描的k空间线的排列依赖于间隔测量的顺序，（c）按顺序排列的k空间线组合成多个组，其中多个连续的k空间线被组合成一组，以及（d）k- 对于每个组，对组合到该组的k空间线进行部分采集的空间线被分配给不同的部分采集。

87. 发明授权

US10788554B2 Method for setting an operating parameter of a medical device and medical device 有权
公开(公告)号：US10788554B2
公开(公告)日：2020-09-29
申请号：US15901576
申请日：2018-02-21
申请人： Dominik Paul , Daniel Nico Splitthoff , Thorsten Feiweier
发明人： Dominik Paul , Daniel Nico Splitthoff , Thorsten Feiweier
IPC分类号： G01R33/54 , G01R33/3875 , G01R33/44 , A61B5/055 , A61B5/00
摘要： A method for setting an operating parameter of a medical device is provided. The method includes determining a current operating mode of the medical device. A time span available for setting the operating parameter is derived from the determined current operating mode. A setting range of the operating parameter necessary for fulfilling a pre-determined criterion is determined. A setting time necessary for setting the operating parameter according to the determined setting range is determined, and the operating parameter is set according to the setting range, provided the time span available for the setting is at least as long as the necessary setting time.

88. 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.

89. 发明授权

US09055882B2 Method and apparatus to generate magnetic resonance images 有权
标题翻译：产生磁共振图像的方法和装置
公开(公告)号：US09055882B2
公开(公告)日：2015-06-16
申请号：US13456739
申请日：2012-04-26
申请人： Thorsten Feiweier , Martin Harder , John Kirsch , Wilfried Landschuetz , Andreas Schmidt , Katrin Wohlfarth
发明人： Thorsten Feiweier , Martin Harder , John Kirsch , Wilfried Landschuetz , Andreas Schmidt , Katrin Wohlfarth
IPC分类号： A61B5/055 , G01R33/54 , G01R33/483 , G01R33/565
CPC分类号： A61B5/055 , G01R33/4833 , G01R33/543 , G01R33/56563
摘要： In a method and apparatus to generate a magnetic resonance (MR) image in a volume of interest of an examination subject, the magnetization is excited in an additional volume in the subject by at least one RF pulse, in order to achieve a desired magnetization in the volume of interest. The additional excitation volume differs at least partially from the volume of interest. For this purpose, at least one MR overview image of the examination subject is analyzed automatically to determine a position of at least one anatomical structure of the examination subject, from which the volume of interest is automatically determined. The additional excitation volume is automatically determined using the position of the at least one anatomical structure. The MR image in the volume of interest is acquired with excitation of the magnetization in the automatically determined additional excitation volume.
摘要翻译：在用于在检查对象感兴趣的体积中产生磁共振（MR）图像的方法和装置中，通过至少一个RF脉冲在受试者的附加体积中激发磁化，以便实现期望的磁化感兴趣的数量。额外的励磁体积至少部分地与感兴趣的体积不同。为此，自动分析检查对象的至少一个MR概述图像，以确定检查对象的至少一个解剖结构的位置，从该位置自动确定感兴趣的体积。使用至少一个解剖结构的位置自动确定附加激发体积。感兴趣体积中的MR图像在自动确定的附加激发体积中的磁化的激发获得。

90. 发明授权

US08947085B2 Magnetic resonance method and apparatus to reduce artifacts in diffusion-weighted imaging 有权
标题翻译：扩散加权成像中减少伪影的磁共振方法和装置
公开(公告)号：US08947085B2
公开(公告)日：2015-02-03
申请号：US13410551
申请日：2012-03-02
申请人： Thorsten Feiweier
发明人： Thorsten Feiweier
IPC分类号： G01R33/563 , G01R33/565 , G01R33/561
CPC分类号： G01R33/56341 , G01R33/5616 , G01R33/56518
摘要： In a method and system for diffusion-weighted acquisition of MR signals with an image acquisition sequence that has multiple diffusion coding gradients and readout gradients to read out the MR signals, MR signal portions are generated with a desired signal coherence path and MR signal portions are generated with unwanted signal coherence paths, with predominantly the MR signal portions with the desired signal coherence path being acquired by the readout gradients by activating dephasing gradients that reduce the acquisition of MR signal portions with unwanted coherence paths. The dephasing gradients are determined under consideration of the diffusion gradients that are used and under consideration of the unwanted signal coherence paths, so that each has a dephasing gradient moment for each unwanted signal coherence path that is greater than a threshold.
摘要翻译：在用具有多个扩散编码梯度和读出梯度读出MR信号的图像获取序列对MR信号进行扩散加权采集的方法和系统中，产生具有期望信号相干路径的MR信号部分，并且MR信号部分由不想要的信号相干路径产生，主要是具有期望信号相干路径的MR信号部分由读出梯度通过激活减少具有不想要的相干路径的MR信号部分的采集的去相位梯度来获取。在考虑使用和考虑不需要的信号相干路径的扩散梯度下确定去相位梯度，使得每个具有大于阈值的每个不需要的信号相干路径的去相位梯度矩。

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