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1. 发明授权

US10345399B2 Method and local coil system for producing a magnetic resonance radio frequency field 有权
公开(公告)号：US10345399B2
公开(公告)日：2019-07-09
申请号：US14245181
申请日：2014-04-04
申请人： Hans-Peter Fautz , Wolfgang Renz , Franz Schmitt
发明人： Hans-Peter Fautz , Wolfgang Renz , Franz Schmitt
IPC分类号： G01R33/28 , G01R33/34 , G01R33/36 , G01R33/3415
摘要： A magnetic resonance RF field is produced in a magnetic resonance imaging system that includes a main magnetic field apparatus and an object-bearing table movable relative to the main magnetic field apparatus and on which a local coil system is arranged. The local coil system includes a plurality of transmission elements. A current location of the object-bearing table relative to the main magnetic field apparatus is established. The transmission elements are automatically connected based on the current location of the object-bearing table.

2. 发明申请

US20140300355A1 Method and Local Coil System for Producing a Magnetic Resonance Radio Frequency Field 审中-公开
标题翻译：用于产生磁共振射频场的方法和局部线圈系统
公开(公告)号：US20140300355A1
公开(公告)日：2014-10-09
申请号：US14245181
申请日：2014-04-04
申请人： Hans-Peter Fautz , Wolfgang Renz , Franz Schmitt
发明人： Hans-Peter Fautz , Wolfgang Renz , Franz Schmitt
IPC分类号： G01R33/28
CPC分类号： G01R33/28 , G01R33/34046 , G01R33/3415 , G01R33/3664
摘要： A magnetic resonance RF field is produced in a magnetic resonance imaging system that includes a main magnetic field apparatus and an object-bearing table movable relative to the main magnetic field apparatus and on which a local coil system is arranged. The local coil system includes a plurality of transmission elements. A current location of the object-bearing table relative to the main magnetic field apparatus is established. The transmission elements are automatically connected based on the current location of the object-bearing table.
摘要翻译：在包括主磁场装置和可相对于主磁场装置移动的对象支承台的磁共振成像系统中产生磁共振RF场，并且配置有局部线圈系统。局部线圈系统包括多个传输元件。建立了对象承载台相对于主磁场装置的当前位置。传输元件根据对象承载台的当前位置自动连接。

3. 发明授权

US07622921B2 Method and device for monitoring radio-frequency exposure in a magnetic resonance measurement 有权
标题翻译：用于监测磁共振测量中射频暴露的方法和装置
公开(公告)号：US07622921B2
公开(公告)日：2009-11-24
申请号：US11965809
申请日：2007-12-28
申请人： Joerg Ulrich Fontius , Juergen Nistler , Wolfgang Renz , Franz Schmitt , Karsten Wicklow
发明人： Joerg Ulrich Fontius , Juergen Nistler , Wolfgang Renz , Franz Schmitt , Karsten Wicklow
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/288 , G01R33/5612
摘要： In a method and device for monitoring the physiologically effective radio-frequency exposure in at least one specific volume region of an examination subject in a magnetic resonance data acquisition scan in a magnetic resonance system, amplitude values are acquired that respectively represent, at specific acquisition points in time, a signal amplitude of the radio-frequency signals emitted or to be emitted via the radio-frequency signal channels. Also, phase values are acquired that represent the phases of the appertaining radio-frequency signals at these points in time. Local exposure values are then determined on the basis of the amplitude values and phase values, respectively representing a physiological exposure that the radio-frequency pulses cause at the examination subject at a specific location at a specific time. Based on this, exposure control values are determined that are compared with predetermined exposure limit values. When an exposure limit values is reached or exceeded, a control signal is output.
摘要翻译：在用于在磁共振系统的磁共振数据采集扫描中监测检查对象的至少一个特定体积区域中的生理上有效的射频暴露的方法和装置中，获取分别表示在特定采集点在时间上，经由射频信号信道发射或将要发射的射频信号的信号幅度。此外，获取代表在这些时间点处的无线电频率信号的相位的相位值。然后根据振幅值和相位值来确定本地曝光值，分别表示在特定时间在特定位置处的检查对象发生的射频脉冲引起的生理暴露。基于此，确定与预定曝光极限值进行比较的曝光控制值。当达到或超过曝光限制值时，输出控制信号。

4. 发明申请

US20080157765A1 METHOD AND DEVICE FOR MONITORING RADIO-FREQUENCY EXPOSURE IN A MAGNETIC RESONANCE MEASUREMENT 有权
标题翻译：用于监测磁共振测量中的无线电频率接触的方法和装置
公开(公告)号：US20080157765A1
公开(公告)日：2008-07-03
申请号：US11965809
申请日：2007-12-28
申请人： Joerg Ulrich Fontius , Juergen Nistler , Wolfgang Renz , Franz Schmitt , Karsten Wicklow
发明人： Joerg Ulrich Fontius , Juergen Nistler , Wolfgang Renz , Franz Schmitt , Karsten Wicklow
IPC分类号： G01R33/483
CPC分类号： G01R33/3415 , G01R33/288 , G01R33/5612
摘要： In a method and device for monitoring the physiologically effective radio-frequency exposure in at least one specific volume region of an examination subject in a magnetic resonance data acquisition scan in a magnetic resonance system, the magnetic resonance system having a radio-frequency antenna structure with a number of individually controllable radio-frequency signal channels for generation of radio-frequency field distributions in an examination volume including the examination subject, amplitude values are acquired that respectively represent, at specific acquisition points in time, a signal amplitude of the radio-frequency signals emitted or to be emitted via the radio-frequency signal channels in the course of the magnetic resonance measurement. Also, phase values are acquired that represent the phases of the appertaining radio-frequency signals at these points in time. Local exposure values are then determined on the basis of the amplitude values and phase values, these local exposure values respectively representing a physiological exposure that the radio-frequency pulses cause at the examination subject at a specific location at a specific time. Based on this, exposure control values are determined that are compared with predetermined exposure limit values. When an exposure limit values is reached or exceeded, a control signal is output.
摘要翻译：在用于在磁共振系统的磁共振数据采集扫描中监测检查对象的至少一个特定体积区域中的生理上有效的射频暴露的方法和装置中，所述磁共振系统具有射频天线结构，在包括检查对象的检查体积中产生用于产生射频场分布的多个独立控制的射频信号通道，获取分别在特定采集时间点表示射频信号幅度的振幅值在磁共振测量过程中通过射频信号通道发射或发射的信号。此外，获取代表在这些时间点处的无线电频率信号的相位的相位值。然后基于振幅值和相位值来确定局部曝光值，这些局部曝光值分别表示在特定时间的特定位置的射频脉冲在检查对象下引起的生理暴露。基于此，确定与预定曝光极限值进行比较的曝光控制值。当达到或超过曝光限制值时，输出控制信号。

5. 发明申请

US20140218134A1 Conductor Arrangement with a Dielectric Standing Wave Trap 有权
标题翻译：导体布置与介电驻波陷阱
公开(公告)号：US20140218134A1
公开(公告)日：2014-08-07
申请号：US14170561
申请日：2014-01-31
申请人： Sebastian Martius , Wolfgang Renz
发明人： Sebastian Martius , Wolfgang Renz
IPC分类号： H01P1/20
CPC分类号： H01P1/202 , G01R33/3685 , H01P1/2084 , H04B15/00
摘要： A conductor arrangement includes a conductor that extends along a conductor axis. The conductor arrangement also includes a standing wave trap to which the conductor is coupled in order to damp standing waves that are excited by an RF field from outside the conductor arrangement. The standing wave trap is in the form of a dielectric resonator device.
摘要翻译：导体布置包括沿着导体轴线延伸的导体。该导体装置还包括一个驻波陷阱，导体被耦合到该驻波陷阱，以便阻止由导体装置外部的RF场激发的驻波。驻波陷波器是介质谐振器装置的形式。

6. 发明授权

US08258787B2 Magnetic resonance system with transmission of a digitized magnetic resonance signal across an air gap 有权
标题翻译：磁共振系统，通过气隙传输数字化的磁共振信号
公开(公告)号：US08258787B2
公开(公告)日：2012-09-04
申请号：US12563331
申请日：2009-09-21
申请人： Hubertus Fischer , Wolfgang Renz
发明人： Hubertus Fischer , Wolfgang Renz
IPC分类号： G01V3/00
CPC分类号： G01R33/3621 , G01R33/3692
摘要： A magnetic resonance system has a patient receptacle and a base body. The patient receptacle has a subframe and a patient bed supported thereon so as to move a patient thereon through the base body. The base body has a basic field magnet system, a gradient system and an RF system that are operable to obtain an analog magnetic resonance signal from the patient. The patient receptacle has a signal conversion device composed of an A/D converter, a modulator, and a transmitter. The base body has a signal conversion device composed of a receiver and a demodulator. The A/D converter receives the magnetic resonance signal and digitizes it. The modulator modulates a carrier signal with the digitized magnetic resonance signal. The transmitter transmits the modulated carrier signal via an air gap to the receive. The receiver receives the transmitted carrier signal. The demodulator extracts the digitized magnetic resonance signal from the received carrier signal by demodulation and supplies it to an evaluation device for continuing evaluation.
摘要翻译：磁共振系统具有患者容器和基体。患者容器具有支撑在其上的子框架和患者床，以使患者在其上移动穿过基体。基体具有可操作以从患者获得模拟磁共振信号的基本场磁体系统，梯度系统和RF系统。患者插座具有由A / D转换器，调制器和发射器组成的信号转换装置。基体具有由接收器和解调器构成的信号转换装置。 A / D转换器接收磁共振信号并对其进行数字化。调制器用数字化的磁共振信号调制载波信号。发射机通过气隙将调制载波信号发送到接收机。接收机接收发送的载波信号。解调器通过解调从接收的载波信号中提取数字化的磁共振信号，并将其提供给用于继续评估的评估装置。

7. 发明授权

US08108026B2 Device consisting of a combination of a magnetic resonance tomograph and a positron emission tomograph 有权
标题翻译：由磁共振断层扫描仪和正电子发射断层扫描仪的组合组成的装置
公开(公告)号：US08108026B2
公开(公告)日：2012-01-31
申请号：US12081560
申请日：2008-04-17
申请人： Michael Eberler , Jürgen Nistler , Wolfgang Renz , Günther Zebelein
发明人： Michael Eberler , Jürgen Nistler , Wolfgang Renz , Günther Zebelein
IPC分类号： A61B5/05
CPC分类号： G01T1/1603 , G01R33/34046 , G01R33/481
摘要： A sandwich structure which attenuates the PET radiation minimally, is used as a support tube for the transmit antenna. In at least one embodiment, it includes a thin strong inner wall, a likewise thin and strong outer wall and an interior of the support tube which is of the honeycomb type or is made of foam material.
摘要翻译：将PET辐射最小化的夹层结构用作发射天线的支撑管。在至少一个实施例中，它包括薄的强内壁，同样薄且坚固的外壁和支撑管的内部，其为蜂窝型或由泡沫材料制成。

8. 发明授权

US08054228B2 Antenna structure for a magnetic resonance device 有权
标题翻译：用于磁共振装置的天线结构
公开(公告)号：US08054228B2
公开(公告)日：2011-11-08
申请号：US12487728
申请日：2009-06-19
申请人： Ludwig Eberler , Wolfgang Renz
发明人： Ludwig Eberler , Wolfgang Renz
IPC分类号： H01Q1/26
CPC分类号： G01R33/34076 , G01R33/341 , G01R33/3415 , G01R33/36 , G01R33/365 , G01R33/3657 , G01R33/3685
摘要： An antenna structure for a magnetic resonance device constructed as a radiating or transmitting antenna of the magnetic resonance device, has a non-metallic antenna conductor containing a discharge gas. When energy is imparted to the discharge gas, the antenna conductor forms an electrically conducting gas discharge column and can be used as an electrically conducting antenna element.
摘要翻译：构成磁共振装置的辐射或发射天线的磁共振装置的天线结构具有含有放电气体的非金属天线导体。当向放电气体施加能量时，天线导体形成导电气体放电柱，并且可以用作导电天线元件。

9. 发明授权

US07977944B2 Control apparatus for a magnetic resonance imaging antenna arrangement 有权
标题翻译：用于磁共振成像天线装置的控制装置
公开(公告)号：US07977944B2
公开(公告)日：2011-07-12
申请号：US12369041
申请日：2009-02-11
申请人： Ralph Oppelt , Wolfgang Renz , Wilfried Schnell
发明人： Ralph Oppelt , Wolfgang Renz , Wilfried Schnell
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/3403 , G01R33/34046 , G01R33/34076 , G01R33/3614 , G01R33/5659
摘要： An apparatus to control an antenna arrangement in a magnetic resonance apparatus has an amplifier with an input connected to a radio-frequency transmission signal to be amplified. The antenna arrangement has at least one antenna element for emission of the amplified transmission signal. The antenna element has an infeed point with two terminals, wherein the amplified transmission signal is connected at the terminals. The amplifier is connected on the output side with two terminals of the infeed point. The antenna element has at the infeed point, a mounting surface to accommodate the amplifier.
摘要翻译：用于控制磁共振装置中的天线布置的装置具有放大器，其输入端连接到要放大的射频传输信号。天线装置具有用于发射放大的发射信号的至少一个天线元件。天线元件具有两个端子的馈电点，其中放大的发送信号在端子处连接。放大器在输出侧连接有两个馈电点的端子。天线元件在馈电点处具有用于容纳放大器的安装表面。

10. 发明申请

US20100176800A1 COIL POSITION DETECTION 失效
标题翻译：线圈位置检测
公开(公告)号：US20100176800A1
公开(公告)日：2010-07-15
申请号：US12684158
申请日：2010-01-08
申请人： Stephan Biber , Thorsten Feiweier , Wolfgang Renz
发明人： Stephan Biber , Thorsten Feiweier , Wolfgang Renz
IPC分类号： G01B7/14 , G01R33/44
CPC分类号： G01R33/3642 , G01R33/341
摘要： A simple position determination is enabled by a device and a method to determine the position of a local coil in a magnetic resonance apparatus, wherein at least one signal emitted by at least one transmission coil is received by the local coil and is evaluated with a position determination device in order to determine the position of the local coil.
摘要翻译：一种简单的位置确定是通过一种装置和方法来实现的，该装置和方法用于确定磁共振装置中局部线圈的位置，其中由至少一个传输线圈发射的至少一个信号由局部线圈接收并且用位置确定装置，以确定局部线圈的位置。

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