公开(公告)号：US10222443B2

公开(公告)日：2019-03-05

申请号：US15052607

申请日：2016-02-24

申请人： Jan Bollenbeck ,  Georg Pirkl ,  Robert Rehner ,  Peter Speier ,  Markus Vester

发明人： Jan Bollenbeck ,  Georg Pirkl ,  Robert Rehner ,  Peter Speier ,  Markus Vester

IPC分类号： G01V3/00 ,  G01R33/563 ,  G01R33/565

摘要： A method for generating motion information for an at least partially moving examination region includes outputting at least one first excitation signal with a first frequency band. The first excitation signal is picked up with a receive coil arrangement of a magnetic resonance system. The at least one coil of the receive coil arrangement is configured to pick up a receive frequency band that includes the first frequency band. At least one item of motion information for the examination region is determined from the picked up first excitation signal.

公开(公告)号：US20160245888A1

公开(公告)日：2016-08-25

申请号：US15052607

申请日：2016-02-24

申请人： Jan Bollenbeck ,  Georg Pirkl ,  Robert Rehner ,  Peter Speier ,  Markus Vester

发明人： Jan Bollenbeck ,  Georg Pirkl ,  Robert Rehner ,  Peter Speier ,  Markus Vester

IPC分类号： G01R33/563 ,  G01R33/565 ,  G01R33/567

CPC分类号： G01R33/56308 ,  G01R33/56509

摘要： A method for generating motion information for an at least partially moving examination region includes outputting at least one first excitation signal with a first frequency band. The first excitation signal is picked up with a receive coil arrangement of a magnetic resonance system. The at least one coil of the receive coil arrangement is configured to pick up a receive frequency band that includes the first frequency band. At least one item of motion information for the examination region is determined from the picked up first excitation signal.

摘要翻译： 一种用于产生用于至少部分移动的检查区域的运动信息的方法包括：输出具有第一频带的至少一个第一激励信号。 用磁共振系统的接收线圈装置拾取第一激励信号。 接收线圈装置的至少一个线圈被配置为拾取包括第一频带的接收频带。 从拾取的第一激励信号确定至少一个用于检查区域的运动信息项。

公开(公告)号：US09411029B2

公开(公告)日：2016-08-09

申请号：US13675950

申请日：2012-11-13

申请人： Georg Pirkl

发明人： Georg Pirkl

IPC分类号： G01V3/00 ,  G01R33/36 ,  G01R33/54 ,  G01R33/422

CPC分类号： G01R33/3621 ,  G01R33/3692 ,  G01R33/422 ,  G01R33/54

摘要： A magnetic resonance tomography (MRT) system has a receive apparatus disposed in a magnetic field, in which a receive coil is coupled to an input of an analog/digital converter. The analog/digital converter is configured for this purpose. A digital output of the analog/digital converter is coupled via a digital mixer device and a clock-rate-reduction device to a data output of the receive apparatus. The mixer device is configured to mix a predetermined frequency band of the MR signal downwards into an intermediate frequency range and create a digital IF signal.

摘要翻译： 磁共振断层摄影（MRT）系统具有设置在磁场中的接收装置，其中接收线圈耦合到模拟/数字转换器的输入端。 模拟/数字转换器配置为此目的。 模拟/数字转换器的数字输出通过数字混频器装置和时钟速率降低装置耦合到接收装置的数据输出端。 混频器装置被配置为将MR信号的预定频带向下混合到中频范围内并产生数字IF信号。

公开(公告)号：US20130214784A1

公开(公告)日：2013-08-22

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

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。

公开(公告)号：US10132885B2

公开(公告)日：2018-11-20

申请号：US14975779

申请日：2015-12-19

申请人： Stephan Biber ,  Georg Pirkl

发明人： Stephan Biber ,  Georg Pirkl

IPC分类号： G01V3/00 ,  G01R33/36 ,  A61B5/00 ,  G01R33/30

摘要： A magnetic resonance tomography system includes a plurality of MRT plugs for connection of antenna elements, respectively, of one of a plurality of local coils. Due to at least one analog switch matrix, antenna elements respectively connected to fewer than all of the MRT plugs may be connected in an analog fashion to receive signal processing elements of one of a plurality of receive signal processing element blocks respectively having a plurality of receive signal processing elements. Between outputs of receive signal processing element blocks and an evaluation device of the magnetic resonance tomography system, a digital channel selection unit is provided. On an input side of the digital channel selection unit, the digital channel selection unit may be connected to antenna elements. Signals from fewer antenna elements are present at the output of the digital channel selection unit than at an input of the digital channel selection unit.

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。

公开(公告)号：US20080169812A1

公开(公告)日：2008-07-17

申请号：US12007739

申请日：2008-01-15

申请人： Ralf Ladebeck ,  Georg Pirkl

发明人： Ralf Ladebeck ,  Georg Pirkl

IPC分类号： G01V3/00

CPC分类号： G01R33/481 ,  A61B6/037 ,  G01R33/3664 ,  G01R33/3692

摘要： A tomographic measuring system is disclosed with at least two tomographic measuring devices, of which at least a first can interfere with a second in a manner disadvantageous for conducting measurements. In at least one embodiment, the system includes a switching-off mechanism at least in the first measuring device; and at least one external connection to the first measuring device for transmitting a switching-off signal to the switching-off mechanism, if the second measuring device is conducting a measurement or will conduct one. A method for conducting measurements with an appropriate tomographic measuring system is also disclosed.

摘要翻译： 公开了一种断层摄影测量系统，其具有至少两个断层摄影测量装置，其中至少第一可以以不利于进行测量的方式干扰第二次。 在至少一个实施例中，该系统至少在第一测量装置中包括切断机构; 以及与所述第一测量装置的至少一个外部连接，用于将所述关闭信号发送到所述关闭机构，如果所述第二测量装置正在进行测量或将进行测量。 还公开了一种用适当的断层摄影测量系统进行测量的方法。