公开(公告)号：US09547064B2

公开(公告)日：2017-01-17

申请号：US13645093

申请日：2012-10-04

申请人： Stephan Biber ,  Helmut Greim ,  Juergen Nistler ,  Thorsten Speckner

发明人： Stephan Biber ,  Helmut Greim ,  Juergen Nistler ,  Thorsten Speckner

IPC分类号： G01R33/54 ,  G01R33/341 ,  G01R33/58

CPC分类号： G01R33/583 ,  G01R33/341

摘要： A method for the control of a magnetic resonance system is provided. In a test phase before a magnetic resonance measurement, a test high-frequency pulse with several parallel individual high-frequency pulses is transmitted with a transmitter antenna arrangement over various different high-frequency transmitter channels. At lower transmitter power, the test high-frequency pulse generates essentially the same field distribution as an excitation high-frequency pulse to be transmitted during a subsequent magnetic resonance measurement. A high-frequency field generated by this test high-frequency pulse is measured in at least one area of a local pulse arrangement, and on the basis of the high-frequency field measured, a high-frequency field value that is to be anticipated at the local coil arrangement during the subsequent magnetic resonance measurement is determined. The control of the magnetic resonance system during a later magnetic resonance measurement includes taking the high-frequency field value into account.

摘要翻译： 提供了一种用于控制磁共振系统的方法。 在磁共振测量之前的测试阶段，具有几个并联的单个高频脉冲的测试高频脉冲通过各种不同的高频发射机通道上的发射机天线布置发射。 在较低的发射机功率下，测试高频脉冲产生与随后的磁共振测量期间传输的激发高频脉冲基本相同的场分布。 由本测试高频脉冲产生的高频场是在局部脉冲布置的至少一个区域中测量的，并且基于所测量的高频场，测量在高频场中预期的高频场值 在随后的磁共振测量期间确定局部线圈布置。 在后来的磁共振测量中，磁共振系统的控制包括考虑高频场值。

公开(公告)号：US20130082707A1

公开(公告)日：2013-04-04

申请号：US13645093

申请日：2012-10-04

申请人： Stephan Biber ,  Helmut Greim ,  Juergen Nistler ,  Thorsten Speckner

发明人： Stephan Biber ,  Helmut Greim ,  Juergen Nistler ,  Thorsten Speckner

IPC分类号： G01R33/54 ,  G01R33/341

CPC分类号： G01R33/583 ,  G01R33/341

摘要： A method for the control of a magnetic resonance system is provided. In a test phase before a magnetic resonance measurement, a test high-frequency pulse with several parallel individual high-frequency pulses is transmitted with a transmitter antenna arrangement over various different high-frequency transmitter channels. At lower transmitter power, the test high-frequency pulse generates essentially the same field distribution as an excitation high-frequency pulse to be transmitted during a subsequent magnetic resonance measurement. A high-frequency field generated by this test high-frequency pulse is measured in at least one area of a local pulse arrangement, and on the basis of the high-frequency field measured, a high-frequency field value that is to be anticipated at the local coil arrangement during the subsequent magnetic resonance measurement is determined. The control of the magnetic resonance system during a later magnetic resonance measurement includes taking the high-frequency field value into account.

摘要翻译： 提供了一种用于控制磁共振系统的方法。 在磁共振测量之前的测试阶段，具有几个并联的单个高频脉冲的测试高频脉冲通过各种不同的高频发射机通道上的发射机天线布置发射。 在较低的发射机功率下，测试高频脉冲产生与随后的磁共振测量期间传输的激发高频脉冲基本相同的场分布。 由本测试高频脉冲产生的高频场是在局部脉冲布置的至少一个区域中测量的，并且基于所测量的高频场，测量在高频场中预期的高频场值 在随后的磁共振测量期间确定局部线圈布置。 在后来的磁共振测量中，磁共振系统的控制包括考虑高频场值。

公开(公告)号：US07764065B2

公开(公告)日：2010-07-27

申请号：US12243056

申请日：2008-10-01

申请人： Stephan Biber ,  Helmut Greim ,  Joerg Rothard ,  Markus Vester

发明人： Stephan Biber ,  Helmut Greim ,  Joerg Rothard ,  Markus Vester

IPC分类号： G01V3/00

CPC分类号： G01R33/3415 ,  A61B5/055 ,  G01R33/34046 ,  G01R33/3642 ,  G01R33/3692

摘要： An arrangement to transmit magnetic resonance signals has a local coil composed of a number of individual antennas for acquisition of radio-frequency signals of a magnetic resonance examination. Preamplifiers amplify the radio-frequency signals, and a transmission device transmits the radio-frequency signals from the local coil to the preamplifiers. The transmission device is fashioned as a readout coil and has a number of individual antennas. The individual antennas of the readout coil are magnetically coupled with the individual antennas of the local coil, with the individual antennas of the local coil and the individual antennas of the readout coil forming a linear MIMO transmission system describable by a transmission matrix.

摘要翻译： 用于发送磁共振信号的装置具有由用于获取磁共振检查的射频信号的多个单独天线组成的局部线圈。 前置放大器放大射频信号，并且传输设备将来自本地线圈的射频信号发送到前置放大器。 传输装置被形成为读出线圈并且具有多个单独的天线。 读出线圈的各个天线与本地线圈的各个天线磁耦合，本地线圈的各个天线和读出线圈的各个天线形成可由传输矩阵描述的线性MIMO传输系统。

公开(公告)号：US10379180B2

公开(公告)日：2019-08-13

申请号：US14539782

申请日：2014-11-12

申请人： Stephan Biber ,  Helmut Greim ,  Klaus Huber ,  Sebastian Martius ,  Johanna Dorothee Schöpfer

发明人： Stephan Biber ,  Helmut Greim ,  Klaus Huber ,  Sebastian Martius ,  Johanna Dorothee Schöpfer

IPC分类号： G01V3/00 ,  G01R33/341 ,  G01R33/3415

摘要： The transmission antenna apparatus is configured for emitting transmission magnetic fields in magnetic resonance imaging devices and includes one or more flat antennas. A magnetic resonance imaging device includes such a transmission antenna apparatus.

公开(公告)号：US20150025362A1

公开(公告)日：2015-01-22

申请号：US14337728

申请日：2014-07-22

申请人： Stephan Biber ,  Hubertus Fischer ,  Helmut Greim

发明人： Stephan Biber ,  Hubertus Fischer ,  Helmut Greim

IPC分类号： G01R33/34

CPC分类号： G01R33/34 ,  G01R33/3415

摘要： A spine coil for a magnetic resonance imaging device includes at least one transmission coil element configured for transmission.

摘要翻译： 用于磁共振成像装置的脊线圈包括配置成用于传输的至少一个传输线圈元件。

公开(公告)号：US09547054B2

公开(公告)日：2017-01-17

申请号：US13441900

申请日：2012-04-08

申请人： Stephan Biber ,  Daniel Driemel ,  Stephan Zink

发明人： Stephan Biber ,  Daniel Driemel ,  Stephan Zink

IPC分类号： G01R33/3415 ,  G01R33/34

CPC分类号： G01R33/34084 ,  G01R33/3415

摘要： A local coil for magnetic resonance applications includes a rigid housing that radially surrounds a substantially cylindrical examination volume. Arranged in the rigid housing is a transmitting coil, by which an excitation signal may be applied to the examination volume. An object to be examined arranged in the examination volume may be excited by the excitation signal for emitting a magnetic resonance signal. The local coil includes a size-variable structure, in which an antenna assembly for receiving the magnetic resonance signal emitted by the object to be examined is arranged. The size-variable structure is arranged in the examination volume and is connected to the rigid housing. The size-variable structure is soft and flexible.

摘要翻译： 用于磁共振应用的局部线圈包括径向围绕基本上圆柱形的检查体积的刚性壳体。 布置在刚性壳体中的是发射线圈，通过该线圈可以将激励信号施加到检查体积。 检查体中被布置的检查对象可以被用于发出磁共振信号的激励信号激发。 本地线圈包括尺寸可变的结构，其中布置有用于接收由被检查物体发射的磁共振信号的天线组件。 尺寸可变结构布置在检查体积中，并连接到刚性外壳。 尺寸可变结构柔软灵活。

公开(公告)号：US20150301135A1

公开(公告)日：2015-10-22

申请号：US14687378

申请日：2015-04-15

申请人： Stephan Biber ,  Daniel Driemel ,  Katharina Hesels ,  Ralf Ladeback ,  Jörg Rothard

发明人： Stephan Biber ,  Daniel Driemel ,  Katharina Hesels ,  Ralf Ladeback ,  Jörg Rothard

IPC分类号： G01R33/3875

摘要： A method and a magnetic resonance apparatus compensate for inhomogeneities in a magnetic field generated by the magnetic resonance apparatus with a shim coil of the magnetic resonance apparatus. The shim coil is arranged at an object under investigation. A position and an orientation of the shim coil are automatically determined. The inhomogeneities of the magnetic field are determined. The inhomogeneities are compensated for via the shim coil depending on the position and the orientation of the shim coil.

摘要翻译： 一种方法和磁共振装置用磁共振装置的垫片线圈补偿由磁共振装置产生的磁场中的不均匀性。 垫片线圈布置在被调查物体上。 自动确定垫片线圈的位置和方向。 确定磁场的不均匀性。 取决于垫片线圈的位置和方向，通过垫片线圈补偿不均匀性。

公开(公告)号：US20120256633A1

公开(公告)日：2012-10-11

申请号：US13441900

申请日：2012-04-08

申请人： Stephan Biber ,  Daniel Driemel ,  Stephan Zink

发明人： Stephan Biber ,  Daniel Driemel ,  Stephan Zink

IPC分类号： G01R33/341

CPC分类号： G01R33/34084 ,  G01R33/3415

摘要： A local coil for magnetic resonance applications includes a rigid housing that radially surrounds a substantially cylindrical examination volume. Arranged in the rigid housing is a transmitting coil, by which an excitation signal may be applied to the examination volume. An object to be examined arranged in the examination volume may be excited by the excitation signal for emitting a magnetic resonance signal. The local coil includes a size-variable structure, in which an antenna assembly for receiving the magnetic resonance signal emitted by the object to be examined is arranged. The size-variable structure is arranged in the examination volume and is connected to the rigid housing. The size-variable structure is soft and flexible.

摘要翻译： 用于磁共振应用的局部线圈包括径向围绕基本上圆柱形的检查体积的刚性壳体。 布置在刚性壳体中的是发射线圈，通过该线圈可以将激励信号施加到检查体积。 检查体中被布置的检查对象可以被用于发出磁共振信号的激励信号激发。 本地线圈包括尺寸可变的结构，其中布置有用于接收由被检查物体发射的磁共振信号的天线组件。 尺寸可变结构布置在检查体积中，并连接到刚性外壳。 尺寸可变结构柔软灵活。

公开(公告)号：US20120249142A1

公开(公告)日：2012-10-04

申请号：US13434616

申请日：2012-03-29

申请人： Stephan Biber ,  Yvonne Candidus ,  Daniel Driemel

发明人： Stephan Biber ,  Yvonne Candidus ,  Daniel Driemel

IPC分类号： G01R33/381 ,  G01R33/56

CPC分类号： G01R33/3415 ,  G01R33/387

摘要： A local coil for a magnetic resonance tomography system includes a housing with a recess for an object under examination. The local coil also includes a radio-frequency receive antenna system and one or more shim elements for homogenization of a static basic magnetic field of the magnetic resonance tomography system.

摘要翻译： 用于磁共振断层摄影系统的局部线圈包括具有用于检查对象的凹部的壳体。 本地线圈还包括射频接收天线系统和用于使磁共振断层摄影系统的静态基本磁场均匀化的一个或多个垫片元件。

公开(公告)号：US08952694B2

公开(公告)日：2015-02-10

申请号：US13092841

申请日：2011-04-22

申请人： Stephan Biber ,  Daniel Driemel

发明人： Stephan Biber ,  Daniel Driemel

IPC分类号： G01R33/32 ,  G01R33/34 ,  G01R33/3415

CPC分类号： G01R33/34084 ,  G01R33/34007 ,  G01R33/34061 ,  G01R33/3415

摘要： A combined head and nape magnetic-resonance coil device for a magnetic-resonance examination using a magnetic-resonance device, includes at least one posterior coil unit and at least two anterior coil units. At least one anterior coil unit of the at least two anterior coil units is mounted in relation to the posterior coil unit such that the at least one anterior coil unit may move along at least one direction of a spacing between the posterior coil unit and the at least one anterior coil unit.

摘要翻译： 一种用于使用磁共振装置的磁共振检查的组合的头和磁盘磁共振线圈装置，包括至少一个后线圈单元和至少两个前线圈单元。 所述至少两个前线圈单元中的至少一个前线圈单元相对于所述后线圈单元安装，使得所述至少一个前线圈单元可以沿着所述后线圈单元和所述后线圈单元之间的间隔的至少一个方向移动 至少一个前线圈单元。