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公开(公告)号：US08237442B2
公开(公告)日：2012-08-07
申请号：US12639481
申请日：2009-12-16
申请人： Razvan Lazar , Juergen Nistler
发明人： Razvan Lazar , Juergen Nistler
IPC分类号： G01V3/00
CPC分类号： G01R33/34076 , G01R33/3628
摘要： A magnetic resonance antenna has capacitive and inductive oscillating circuit antenna elements at least one radio-frequency switching element with which at least one of the oscillating circuit antenna elements that determine the resonant frequency of the magnetic resonance antenna, can be switched at radio frequency between a permeable state and an impermeable state to change the resonant frequency of the magnetic resonance antenna, so the antenna can be detuned simply, cost-effectively and efficiently.
摘要翻译： 磁共振天线具有电容和电感振荡电路天线元件，至少一个射频切换元件，确定磁共振天线的谐振频率的至少一个振荡电路天线元件可以通过该至少一个射频开关元件在射频之间切换 透气状态和不透水状态，以改变磁共振天线的谐振频率，因此天线可以简单，经济高效地失谐。
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公开(公告)号：US20100188086A1
公开(公告)日：2010-07-29
申请号：US12639481
申请日：2009-12-16
申请人： Razvan Lazar , Juergen Nistler
发明人： Razvan Lazar , Juergen Nistler
IPC分类号： G01R33/44
CPC分类号： G01R33/34076 , G01R33/3628
摘要： A magnetic resonance antenna has capacitive and inductive oscillating circuit antenna elements at least one radio-frequency switching element with which at least one of the oscillating circuit antenna elements that determine the resonant frequency of the magnetic resonance antenna, can be switched at radio frequency between a permeable state and an impermeable state to change the resonant frequency of the magnetic resonance antenna, so the antenna can be detuned simply, cost-effectively and efficiently.
摘要翻译： 磁共振天线具有电容和电感振荡电路天线元件，至少一个射频切换元件，确定磁共振天线的谐振频率的至少一个振荡电路天线元件可以通过该至少一个射频开关元件在射频之间切换 透气状态和不透水状态，以改变磁共振天线的谐振频率，因此天线可以简单，经济高效地失谐。
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公开(公告)号：US20100225320A1
公开(公告)日：2010-09-09
申请号：US12718271
申请日：2010-03-05
申请人： Razvan Lazar , Juergen Nistler
发明人： Razvan Lazar , Juergen Nistler
IPC分类号： G01R33/32
CPC分类号： G01R33/3628 , G01R33/3415 , G01R33/3456
摘要： The efficiency and the field structure of an antenna arrangement for a magnetic resonance tomography apparatus are improved by at least one impedance transformation circuit connected with the antenna.
摘要翻译： 用于磁共振断层摄影装置的天线装置的效率和场结构由与天线连接的至少一个阻抗变换电路改进。
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公开(公告)号：US08358131B2
公开(公告)日：2013-01-22
申请号：US12718271
申请日：2010-03-05
申请人： Razvan Lazar , Juergen Nistler
发明人： Razvan Lazar , Juergen Nistler
CPC分类号： G01R33/3628 , G01R33/3415 , G01R33/3456
摘要： The efficiency and the field structure of an antenna arrangement for a magnetic resonance tomography apparatus are improved by at least one impedance transformation circuit connected with the antenna.
摘要翻译： 用于磁共振断层摄影装置的天线装置的效率和场结构由与天线连接的至少一个阻抗变换电路改进。
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公开(公告)号：US20150253395A1
公开(公告)日：2015-09-10
申请号：US14640728
申请日：2015-03-06
申请人： Razvan Lazar , Paul Yoe
发明人： Razvan Lazar , Paul Yoe
CPC分类号： G01R33/3628 , G01R33/34092 , G01R33/3642 , G01R33/543 , G01R33/546 , G01R33/5608 , G01R33/583
摘要： A method for signaling a tuning of an adjustment parameter of an antenna coil arrangement of a magnetic resonance tomograph includes detecting a deviation between an actual adjustment value of at least one adjustment parameter and a required adjustment value of the at least one adjustment parameter. As a function of the deviation, an acoustic and/or a mechanical signal is output in real time to an operator. A device for signaling a tuning of an adjustment parameter of a coil arrangement of a magnetic resonance tomograph, and a magnetic resonance tomograph operating according to the method and/or containing the device are described.
摘要翻译： 用于发信号通知磁共振断层摄影机的天线线圈装置的调整参数的方法包括检测至少一个调整参数的实际调整值与所述至少一个调整参数的所需调整值之间的偏差。 作为偏差的函数，声学和/或机械信号被实时地输出给操作者。 描述了用于发信号通知磁共振断层摄影机的线圈装置的调整参数和根据该方法操作和/或包含该装置的磁共振断层摄影机的装置的装置。
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公开(公告)号：US20090206836A1
公开(公告)日：2009-08-20
申请号：US11902584
申请日：2007-09-24
申请人： Ludwig Eberler , Razvan Lazar , Jurgen Nistler , Wolfgang Renz , Norbert Rietsch
发明人： Ludwig Eberler , Razvan Lazar , Jurgen Nistler , Wolfgang Renz , Norbert Rietsch
CPC分类号： G01R33/28 , A61B5/0035 , A61B5/055 , G01R33/481 , G01T1/1603
摘要： A detection unit is disclosed for arrangement in the main magnet of an MR device, which has both an RF transceiver system and a PET detector. In at least one embodiment the RF transceiver system is divided into two parts and the two parts are arranged upstream and downstream of the PET detector in the longitudinal direction of the patient tunnel. The RF transceiver system and PET detector are applied to the same image volume. In at least one other embodiment, an MR device is equipped with the detection unit, and in at least one other embodiment, a method operates the detection unit.
摘要翻译： 公开了用于布置在MR设备的主磁体中的检测单元，其具有RF收发器系统和PET检测器。 在至少一个实施例中，RF收发器系统被分成两部分，并且两个部分被布置在患者隧道的纵向上的PET检测器的上游和下游。 RF收发器系统和PET检测器应用于相同的图像体积。 在至少另一个实施例中，MR装置配备有检测单元，并且在至少一个其它实施例中，一种方法操作检测单元。
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公开(公告)号：US09784803B2
公开(公告)日：2017-10-10
申请号：US14250648
申请日：2014-04-11
申请人： Razvan Lazar , Martin Schramm
发明人： Razvan Lazar , Martin Schramm
CPC分类号： G01R33/288 , G01R33/34007 , G01R33/34046 , G01R33/56
摘要： A magnetic resonance scanner includes an antenna system, such as a body coil, mechanically coupled to a support structure, such as a gradient coil, via a suspension system. The suspension system has a setting mechanism in order to reversibly set a coupling parameter value of the mechanical coupling between the antenna system and the support structure and/or a position or location of the antenna system relative to the support structure. The coupling parameter may be set during operation of a magnetic resonance imaging system including the magnetic resonance scanner.
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8.发明授权公开(公告)号：US09075118B2
公开(公告)日：2015-07-07
申请号：US13197636
申请日：2011-08-03
申请人： Razvan Lazar
发明人： Razvan Lazar
CPC分类号： G01R33/3664 , G01R33/34046 , G01R33/34076
摘要： A magnetic resonance antenna arrangement having a plurality of antenna elements disposed around a measurement chamber and a plurality of switching elements is provided. The antenna elements and the switching elements are disposed and interconnected such that in a first switching configuration of the switching elements, the antenna elements form a first antenna architecture, and in a second switching configuration of the switching elements, the antenna elements form a second antenna architecture.
摘要翻译： 提供一种具有设置在测量室周围的多个天线元件和多个开关元件的磁共振天线装置。 天线元件和开关元件被布置和互连，使得在开关元件的第一开关配置中，天线元件形成第一天线结构，并且在开关元件的第二开关配置中，天线元件形成第二天线 建筑。
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公开(公告)号：US20140306702A1
公开(公告)日：2014-10-16
申请号：US14250484
申请日：2014-04-11
申请人： Razvan Lazar , Martin Schramm
发明人： Razvan Lazar , Martin Schramm
IPC分类号： G01R33/565 , G01R33/34
CPC分类号： G01R33/565 , G01R33/34 , G01R33/34007 , G01R33/34046 , G01R33/56509
摘要： The embodiments relate to a magnetic resonance scanner including an antenna system having an adjustment device for modifying the natural frequency of a natural mechanical oscillation mode of the antenna system. According to the embodiments, in a method for operating a magnetic resonance imaging system having a magnetic resonance scanner comprising an antenna system, a natural frequency of a natural mechanical oscillation mode of the antenna system is controlled and/or regulated.
摘要翻译： 这些实施例涉及一种磁共振扫描仪，其包括具有用于改变天线系统的自然机械振荡模式的固有频率的调整装置的天线系统。 根据实施例，在具有包括天线系统的磁共振扫描仪的磁共振成像系统的操作方法中，控制和/或调节天线系统的自然机械振荡模式的固有频率。
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10.发明授权公开(公告)号：US08779774B2
公开(公告)日：2014-07-15
申请号：US13253066
申请日：2011-10-05
申请人： Ludwig Eberler , Razvan Lazar , Jürgen Nistler
发明人： Ludwig Eberler , Razvan Lazar , Jürgen Nistler
IPC分类号： G01V3/00
CPC分类号： G01R33/3657 , G01R33/34076 , G01R33/481 , G01R33/56518
摘要： The present embodiments include a magnetic resonance antenna having parallel-running longitudinal antenna rods arranged in a birdcage structure and antenna ferrules connecting the parallel-running longitudinal antenna rods at ends of the parallel-running longitudinal antenna rods in radio frequency terms. The magnetic resonance antenna includes a plurality of radio-frequency switching elements configured to interrupt at least a part of the parallel-running longitudinal antenna rods to detune a natural resonance frequency with respect to an operating magnetic resonance frequency in radio frequency terms. At least some radio-frequency switching elements of the plurality of radio-frequency switching elements are arranged at end sections of the parallel-running longitudinal antenna rods.
摘要翻译： 本实施例包括具有布置在鸟笼结构中的平行行进的纵向天线杆的磁共振天线和以平行延伸的纵向天线杆的端部在平行延伸的纵向天线杆的端部处以射频方式连接的天线套圈。 磁共振天线包括多个射频开关元件，其被配置为中断至少一部分并行运行的纵向天线杆，以使其相对于工作磁共振频率在无线电频率方面失谐。 多个射频开关元件中的至少一些射频开关元件布置在并行运行的纵向天线杆的端部。
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