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    DETUNING A MRT RECEIVE ANTENNA
    1.
    发明申请
    DETUNING A MRT RECEIVE ANTENNA 审中-公开
    拆除地铁接收天线

    公开(公告)号：US20160320465A1

    公开(公告)日：2016-11-03

    申请号：US15131201

    申请日：2016-04-18

    申请人： Klaus Huber ,  Robert Rehner ,  Markus Vester

    发明人： Klaus Huber ,  Robert Rehner ,  Markus Vester

    IPC分类号： G01R33/36

    CPC分类号： G01R33/3657 ,  G01R33/341

    摘要： An arrangement for detuning a receive antenna, a detunable magnetic resonance coil, and a magnetic resonance device having a detunable magnetic resonance coil are provided. The arrangement includes a receive antenna having at least one first capacitance, wherein radiofrequency signals from a magnetic resonance examination may be received by way of the receive antenna. The arrangement furthermore includes a switchable detuning circuit containing the first capacitance switched to form an oscillating circuit and a first inductance, and a switching device having a first and a second connection point to deliver a voltage between the first and a second connection point, and one or more transistors. The switching device switches the oscillating circuit to a high impedance level with aid of the one or more transistors on delivery of a positive voltage to the first connection point, preventing a radiofrequency signal from being received by way of the receive antenna.

    摘要翻译： 提供了一种用于使接收天线失谐的装置，不可恢复的磁共振线圈和具有不可恢复的磁共振线圈的磁共振装置。 该装置包括具有至少一个第一电容的接收天线，其中可以通过接收天线接收来自磁共振检查的射频信号。 该装置还包括可切换的失谐电路，其包含切换以形成振荡电路的第一电容和第一电感，以及具有第一和第二连接点以在第一和第二连接点之间传递电压的开关装置，以及一个 或更多的晶体管。 开关装置在将正电压传送到第一连接点的同时，通过一个或多个晶体管的帮助将振荡电路切换到高阻抗水平，防止射频信号通过接收天线被接收。

    Detuning a MRT receive antenna
    2.
    发明授权
    Detuning a MRT receive antenna 有权

    公开(公告)号：US10145912B2

    公开(公告)日：2018-12-04

    申请号：US15131201

    申请日：2016-04-18

    申请人： Klaus Huber ,  Robert Rehner ,  Markus Vester

    发明人： Klaus Huber ,  Robert Rehner ,  Markus Vester

    IPC分类号： G01R33/36 ,  G01R33/341

    摘要： An arrangement for detuning a receive antenna, a detunable magnetic resonance coil, and a magnetic resonance device having a detunable magnetic resonance coil are provided. The arrangement includes a receive antenna having at least one first capacitance, wherein radiofrequency signals from a magnetic resonance examination may be received by way of the receive antenna. The arrangement furthermore includes a switchable detuning circuit containing the first capacitance switched to form an oscillating circuit and a first inductance, and a switching device having a first and a second connection point to deliver a voltage between the first and a second connection point, and one or more transistors. The switching device switches the oscillating circuit to a high impedance level with aid of the one or more transistors on delivery of a positive voltage to the first connection point, preventing a radiofrequency signal from being received by way of the receive antenna.

    Transmitting and/or receiving MRI signals for a MRI examination
    3.
    发明授权
    Transmitting and/or receiving MRI signals for a MRI examination 有权

    公开(公告)号：US10094894B2

    公开(公告)日：2018-10-09

    申请号：US14632154

    申请日：2015-02-26

    申请人： Andreas Fackelmeier ,  Sebastian Martius ,  Robert Rehner ,  Christopher Stumpf ,  Markus Vester

    发明人： Andreas Fackelmeier ,  Sebastian Martius ,  Robert Rehner ,  Christopher Stumpf ,  Markus Vester

    IPC分类号： G01R33/36 ,  G01R33/34

    摘要： An arrangement includes a superconducting split ring resonator, a cryostat, and a copper coil. The resonator is arranged in the cryostat and includes at least one ring-shaped conductor made of a superconducting material and including an opening and a taper. The copper coil may be used to transmit a MRI excitation signal. This signal causes a current to be induced in the conductor that leads to the breakdown of the superconductivity. The conductor is detuned and therefore no longer develops an interfering effect. It is possible for the effect of the breakdown of superconductivity to be used for detuning in a targeted manner. After the transmission is complete, the conductor returns into the superconducting state and acts as a superconducting reception antenna for the MRI measurement signal. The copper coil is inductively coupled to the conductor and configured to read out the signal induced in the conductor.

    GENERATING MOTION INFORMATION FOR AN AT LEAST PARTIALLY MOVING EXAMINATION REGION
    5.
    发明申请
    GENERATING MOTION INFORMATION FOR AN AT LEAST PARTIALLY MOVING EXAMINATION REGION 审中-公开
    生成运动信息至少部分移动检查区域

    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。

    Transmitting and/or Receiving MRI Signals for a MRI Examination
    8.
    发明申请
    Transmitting and/or Receiving MRI Signals for a MRI Examination 审中-公开
    MRI检查的发射和/或接收MRI信号

    公开(公告)号：US20150241528A1

    公开(公告)日：2015-08-27

    申请号：US14632154

    申请日：2015-02-26

    申请人： Andreas Fackelmeier ,  Sebastian Martius ,  Robert Rehner ,  Christopher Stumpf ,  Markus Vester

    发明人： Andreas Fackelmeier ,  Sebastian Martius ,  Robert Rehner ,  Christopher Stumpf ,  Markus Vester

    IPC分类号： G01R33/36 ,  G01R33/48 ,  G01R33/34

    CPC分类号： G01R33/3657 ,  G01R33/34023

    摘要： An arrangement includes a superconducting split ring resonator, a cryostat, and a copper coil. The resonator is arranged in the cryostat and includes at least one ring-shaped conductor made of a superconducting material and including an opening and a taper. The copper coil may be used to transmit a MRI excitation signal. This signal causes a current to be induced in the conductor that leads to the breakdown of the superconductivity. The conductor is detuned and therefore no longer develops an interfering effect. It is possible for the effect of the breakdown of superconductivity to be used for detuning in a targeted manner. After the transmission is complete, the conductor returns into the superconducting state and acts as a superconducting reception antenna for the MRI measurement signal. The copper coil is inductively coupled to the conductor and configured to read out the signal induced in the conductor.

    摘要翻译： 一种装置包括超导分裂环谐振器，低温恒温器和铜线圈。 谐振器布置在低温恒温器中，并且包括由超导材料制成并且包括开口和锥形的至少一个环形导体。 铜线圈可用于传输MRI激励信号。 该信号导致导体中导致的电流导致超导性的破坏。 导体失谐，因此不再产生干扰效应。 有可能以有目的的方式将超导性破坏的效果用于失谐。 传输完成后，导体返回超导状态，作为MRI测量信号的超导接收天线。 铜线圈感应耦合到导体并且被配置为读出在导体中感应的信号。

    MAGNETIC RESONANCE DEVICE HAVING A MOTION DETECTION UNIT AND A METHOD FOR DETECTING A MOVEMENT OF A PATIENT DURING A MAGNETIC RESONANCE EXAMINATION
    10.
    发明申请
    MAGNETIC RESONANCE DEVICE HAVING A MOTION DETECTION UNIT AND A METHOD FOR DETECTING A MOVEMENT OF A PATIENT DURING A MAGNETIC RESONANCE EXAMINATION 审中-公开
    具有运动检测单元的磁共振装置和用于检测磁共振检查期间患者运动的方法

    公开(公告)号：US20150320342A1

    公开(公告)日：2015-11-12

    申请号：US14706744

    申请日：2015-05-07

    申请人： Stephan Biber ,  Andreas Fackelmeier ,  Klaus Huber ,  Robert Rehner

    发明人： Stephan Biber ,  Andreas Fackelmeier ,  Klaus Huber ,  Robert Rehner

    IPC分类号： A61B5/11 ,  G01V3/00 ,  G01S13/02 ,  G01R33/32

    摘要： A magnetic resonance device includes a radiofrequency unit that includes a radiofrequency antenna, at least one radiofrequency line and at least one radiofrequency injection point. Radiofrequency signals are transferred to the radiofrequency antenna by the at least one radiofrequency line and are coupled into the radiofrequency antenna at the at least one radiofrequency injection point. The magnetic resonance device also includes a patient receiving zone that is at least partially enclosed by the radiofrequency antenna, and a motion detection unit for detecting a movement of a patient that may be positioned within the patient receiving zone. At least one radiofrequency line includes at least one injection element by which at least one motion detection signal of the motion detection unit is coupled into the radiofrequency line.

    摘要翻译： 磁共振装置包括射频单元，其包括射频天线，至少一个射频线和至少一个射频注入点。 射频信号由至少一个射频线路传送到射频天线，并且在至少一个射频注入点处耦合到射频天线。 磁共振装置还包括至少部分地由射频天线包围的患者接收区域，以及用于检测可位于患者接收区域内的患者的运动的运动检测单元。 至少一个射频线包括至少一个注入元件，通过该注入元件将运动检测单元的至少一个运动检测信号耦合到射频线中。