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公开(公告)号：US09513351B2
公开(公告)日：2016-12-06
申请号：US13618635
申请日：2012-09-14
申请人： Stephan Biber , Daniel Driemel , Helmut Greim , Steffen Wolf
发明人： Stephan Biber , Daniel Driemel , Helmut Greim , Steffen Wolf
IPC分类号： G01R33/36 , G01R33/3415 , G01R33/34
CPC分类号： G01R33/3642 , G01R33/34007 , G01R33/3415
摘要： A magnetic resonance coil for transmitting and/or receiving magnetic resonance signals is provided. The magnetic resonance coil includes at least two overlapping coil elements. Coil conductors of the at least two overlapping coil elements intersect in intersection regions and are arranged on a support. Mutually overlapping coil elements of the at least two overlapping coil elements are arranged on different sides of the support. The support is formed from at least three layers of a support material. A cavity that is filled with air or a filler material, the dielectric constant of the filler material being lower than the dielectric constant of the support material, is provided in the intersection regions in a middle layer of the at least three layers.
摘要翻译： 提供用于发送和/或接收磁共振信号的磁共振线圈。 磁共振线圈包括至少两个重叠的线圈元件。 所述至少两个重叠的线圈元件的线圈导体在交叉区域相交并且布置在支撑件上。 所述至少两个重叠的线圈元件的相互重叠的线圈元件布置在所述支撑件的不同侧上。 支撑体由至少三层的支撑材料形成。 在至少三层的中间层的交叉区域中设置填充有空气或填充材料的空腔，填充材料的介电常数低于载体材料的介电常数。
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公开(公告)号：US20130241557A1
公开(公告)日：2013-09-19
申请号：US13618635
申请日：2012-09-14
申请人： Stephan Biber , Daniel Driemel , Helmut Greim , Steffen Wolf
发明人： Stephan Biber , Daniel Driemel , Helmut Greim , Steffen Wolf
IPC分类号： G01R33/36
CPC分类号： G01R33/3642 , G01R33/34007 , G01R33/3415
摘要： A magnetic resonance coil for transmitting and/or receiving magnetic resonance signals is provided. The magnetic resonance coil includes at least two overlapping coil elements. Coil conductors of the at least two overlapping coil elements intersect in intersection regions and are arranged on a support. Mutually overlapping coil elements of the at least two overlapping coil elements are arranged on different sides of the support. The support is formed from at least three layers of a support material. A cavity that is filled with air or a filler material, the dielectric constant of the filler material being lower than the dielectric constant of the support material, is provided in the intersection regions in a middle layer of the at least three layers.
摘要翻译： 提供用于发送和/或接收磁共振信号的磁共振线圈。 磁共振线圈包括至少两个重叠的线圈元件。 所述至少两个重叠的线圈元件的线圈导体在交叉区域相交并且布置在支撑件上。 所述至少两个重叠的线圈元件的相互重叠的线圈元件布置在所述支撑件的不同侧上。 支撑体由至少三层的支撑材料形成。 在至少三层的中间层的交叉区域中设置填充有空气或填充材料的空腔，填充材料的介电常数低于载体材料的介电常数。
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公开(公告)号：US08487619B2
公开(公告)日：2013-07-16
申请号：US12759883
申请日：2010-04-14
申请人： Stephan Biber , Yvonne Candidus , Daniel Driemel , Helmut Greim , Thomas Kundner
发明人： Stephan Biber , Yvonne Candidus , Daniel Driemel , Helmut Greim , Thomas Kundner
CPC分类号： G01R33/36 , G01R33/34007 , Y10T29/4902
摘要： A simple connection of a coil with a magnetic resonance tomography (MRT) is facilitated by a method and an adapter wherein a coil-connection element of at least one local coil is connected with an MRT-connection element of an MRT system. The adapter has a coil-connection element adapter designed to form a connection with at least one coil-connection element of at least one local coil. The adapter also has at least one MRT-connection element adapter designed to form a connection with an MRT-connection element of an MRT system. The adapter can be fixed mechanically to a fixing element of the MRT system.
摘要翻译： 线圈与磁共振断层摄影（MRT）的简单连接通过方法和适配器来促进，其中至少一个局部线圈的线圈连接元件与MRT系统的MRT连接元件连接。 适配器具有设计成与至少一个局部线圈的至少一个线圈连接元件形成连接的线圈连接元件适配器。 适配器还具有至少一个MRT连接元件适配器，用于与MRT系统的MRT连接元件形成连接。 适配器可以机械地固定到MRT系统的固定元件。
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公开(公告)号：US20100271027A1
公开(公告)日：2010-10-28
申请号：US12759883
申请日：2010-04-14
申请人： Stephan Biber , Yvonne Candidus , Daniel Driemel , Helmut Greim , Thomas Kundner
发明人： Stephan Biber , Yvonne Candidus , Daniel Driemel , Helmut Greim , Thomas Kundner
CPC分类号： G01R33/36 , G01R33/34007 , Y10T29/4902
摘要： A simple connection of a coil with a magnetic resonance tomography (MRT) is facilitated by a method and an adapter wherein a coil-connection element of at least one local coil is connected with an MRT-connection element of an MRT system. The adapter has a coil-connection element adapter designed to form a connection with at least one coil-connection element of at least one local coil. The adapter also has at least one MRT-connection element adapter designed to form a connection with an MRT-connection element of an MRT system. The adapter can be fixed mechanically to a fixing element of the MRT system.
摘要翻译： 线圈与磁共振断层摄影（MRT）的简单连接通过方法和适配器来促进，其中至少一个局部线圈的线圈连接元件与MRT系统的MRT连接元件连接。 适配器具有设计成与至少一个局部线圈的至少一个线圈连接元件形成连接的线圈连接元件适配器。 适配器还具有至少一个MRT连接元件适配器，用于与MRT系统的MRT连接元件形成连接。 适配器可以机械地固定到MRT系统的固定元件。
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公开(公告)号：US20100121180A1
公开(公告)日：2010-05-13
申请号：US12597947
申请日：2008-10-31
申请人： Stephan Biber , Daniel Driemel , Helmut Greim , Karsten Jahns
发明人： Stephan Biber , Daniel Driemel , Helmut Greim , Karsten Jahns
CPC分类号： H01Q1/276 , G01R33/34084 , G01R33/3415 , H01Q7/00 , H01Q9/28
摘要： A head coil for a magnetic resonance apparatus has a supporting body that carries a number of antenna elements. The supporting body has an end section that is shaped as a spherical cap. A butterfly antenna is mounted at the end section, and is annularly surrounded by at least one group antenna that overlaps the butterfly antenna.
摘要翻译： 用于磁共振装置的磁头线圈具有承载多个天线元件的支撑体。 支撑体具有成形为球形帽的端部。 蝶形天线安装在端部，并且被至少一个与蝴蝶天线重叠的组天线环形围绕。
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公开(公告)号：US08244328B2
公开(公告)日：2012-08-14
申请号：US12597947
申请日：2008-10-31
申请人： Stephan Biber , Daniel Driemel , Helmut Greim , Karsten Jahns
发明人： Stephan Biber , Daniel Driemel , Helmut Greim , Karsten Jahns
IPC分类号： A61B5/00
CPC分类号： H01Q1/276 , G01R33/34084 , G01R33/3415 , H01Q7/00 , H01Q9/28
摘要： A head coil for a magnetic resonance apparatus has a supporting body that carries a number of antenna elements. The supporting body has an end section that is shaped as a spherical cap. A butterfly antenna is mounted at the end section, and is annularly surrounded by at least one group antenna that overlaps the butterfly antenna.
摘要翻译： 用于磁共振装置的磁头线圈具有承载多个天线元件的支撑体。 支撑体具有成形为球形帽的端部。 蝶形天线安装在端部，并且被至少一个与蝴蝶天线重叠的组天线环形围绕。
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公开(公告)号：US20150130467A1
公开(公告)日：2015-05-14
申请号：US14539782
申请日：2014-11-12
CPC分类号： 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.
摘要翻译： 发送天线装置被配置为在磁共振成像装置中发射发射磁场，并且包括一个或多个平坦天线。 磁共振成像装置包括这样的发送天线装置。
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公开(公告)号：US08085048B2
公开(公告)日：2011-12-27
申请号：US12404793
申请日：2009-03-16
IPC分类号： G01V3/00
CPC分类号： G01R33/3628 , G01R33/341 , G01R33/3692
摘要： An arrangement to detune a reception antenna in a local coil of a magnetic resonance system, with at least one reception antenna that is fashioned as a loop antenna and that has at least one first capacitance. Radio-frequency signals of a magnetic resonance examination are received via the reception antenna. A switchable detuning circuit contains the first capacitance connected to an oscillating circuit and a first inductance. A reception device to receive a control signal is coupled with the oscillating circuit. The reception device switches the oscillating circuit into a high-resistance state given a received control signal so that a receipt of a radio-frequency signal via the reception antenna is prevented. The reception device is fashioned to receive a wirelessly transmitted radio-frequency control signal. The radio-frequency control signal has a frequency that lies outside of the bandwidth of the radio-frequency signal used for magnetic resonance examination.
摘要翻译： 一种使磁共振系统的本地线圈中的接收天线失谐的装置，其中至少一个接收天线被形成为环形天线并且具有至少一个第一电容。 通过接收天线接收磁共振检查的射频信号。 可切换失谐电路包含连接到振荡电路和第一电感的第一电容。 接收控制信号的接收装置与振荡电路耦合。 接收装置在给出接收到的控制信号的情况下将振荡电路切换为高电阻状态，从而防止经由接收天线的射频信号的接收。 接收装置被设计成接收无线发送的射频控制信号。 射频控制信号具有位于用于磁共振检查的射频信号的带宽之外的频率。
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公开(公告)号：US20090237081A1
公开(公告)日：2009-09-24
申请号：US12404793
申请日：2009-03-16
IPC分类号： G01R33/36
CPC分类号： G01R33/3628 , G01R33/341 , G01R33/3692
摘要： An arrangement to detune a reception antenna in a local coil of a magnetic resonance system, with at least one reception antenna that is fashioned as a loop antenna and that has at least one first capacitance. Radio-frequency signals of a magnetic resonance examination are received via the reception antenna. A switchable detuning circuit contains the first capacitance connected to an oscillating circuit and a first inductance. A reception device to receive a control signal is coupled with the oscillating circuit. The reception device switches the oscillating circuit into a high-resistance state given a received control signal so that a receipt of a radio-frequency signal via the reception antenna is prevented. The reception device is fashioned to receive a wirelessly transmitted radio-frequency control signal. The radio-frequency control signal has a frequency that lies outside of the bandwidth of the radio-frequency signal used for magnetic resonance examination.
摘要翻译： 一种使磁共振系统的本地线圈中的接收天线失谐的装置，其中至少一个接收天线被形成为环形天线并且具有至少一个第一电容。 通过接收天线接收磁共振检查的射频信号。 可切换失谐电路包含连接到振荡电路和第一电感的第一电容。 接收控制信号的接收装置与振荡电路耦合。 接收装置在给出接收到的控制信号的情况下将振荡电路切换为高电阻状态，从而防止经由接收天线的射频信号的接收。 接收装置被设计成接收无线发送的射频控制信号。 射频控制信号具有位于用于磁共振检查的射频信号的带宽之外的频率。
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公开(公告)号：US20090096456A1
公开(公告)日：2009-04-16
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： G01R33/36
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。
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