Transmitting Antenna Device and Magnetic Resonance Imaging System
    2.
    发明申请
    Transmitting Antenna Device and Magnetic Resonance Imaging System 审中-公开
    发射天线装置和磁共振成像系统

    公开(公告)号:US20150276900A1

    公开(公告)日:2015-10-01

    申请号:US14672563

    申请日:2015-03-30

    Abstract: A transmission antenna apparatus is provided to emit transmission magnetic fields in magnetic resonance imaging scanners. The transmission antenna apparatus includes at least a first flat antenna and a second flat antenna. The first flat antenna is arranged in relation to the second flat antenna in such a way that first areas, formed in the planar extent of partial structures of the first flat antenna in each case situated in the same plane, are opposite to second areas, formed in the planar extent of partial structures of the second flat antenna in each case situated in the same plane, in a manner mirrored in a mirror plane. The first flat antenna and the second flat antenna, as part of the structure thereof, share a first path, situated on the mirror plane, over the full length of the path. The magnetic resonance imaging scanner has such a transmission antenna apparatus.

    Abstract translation: 提供发射天线装置以在磁共振成像扫描仪中发射透射磁场。 发送天线装置至少包括第一平面天线和第二平坦天线。 第一扁平天线相对于第二扁平天线布置成使得形成在第一平面天线的每个部分的部分结构的平面范围中的第一区域位于同一平面内,形成为与第二区域相反的方式形成 在第二平面天线的每个情况下的部分结构的平面范围中,以与镜面相反的方式位于同一平面内。 作为其结构的一部分的第一扁平天线和第二平面天线在路径的整个长度上共享位于镜面上的第一路径。 磁共振成像扫描器具有这样的发送天线装置。

    MAGNETIC RESONANCE APPARATUS HAVING RECEIVE COILS AND METHOD FOR OPERATING A MAGNETIC RESONANCE APPARATUS
    4.
    发明申请
    MAGNETIC RESONANCE APPARATUS HAVING RECEIVE COILS AND METHOD FOR OPERATING A MAGNETIC RESONANCE APPARATUS 有权
    具有接收线圈的磁共振装置和操作磁共振装置的方法

    公开(公告)号:US20130241547A1

    公开(公告)日:2013-09-19

    申请号:US13604550

    申请日:2012-09-05

    CPC classification number: G01R33/3692 G01R33/3415 G01R33/3664

    Abstract: A magnetic resonance apparatus includes receive coils and a receiver device for processing magnetic resonance signals received by coil elements of the receive coils. The receive coils are subdivided into at least a first group having at least one receive coil and a second group having at least one receive coil. The receive coils of the first group are connected to the receiver device via a hardwired communications link, and the receive coils of the second group are each connectable or connected to the receiver device via a wireless communications link.

    Abstract translation: 磁共振装置包括接收线圈和用于处理由接收线圈的线圈元件接收的磁共振信号的接收器装置。 接收线圈被细分成至少一个具有至少一个接收线圈的第一组和具有至少一个接收线圈的第二组。 第一组的接收线圈经由硬连线通信链路连接到接收机设备,并且第二组的接收线圈各自可经由无线通信链路连接或接收到接收机设备。

    Activation of Transmit/Receive Arrays for Decoupling During Transmission
    5.
    发明申请
    Activation of Transmit/Receive Arrays for Decoupling During Transmission 有权
    发射/接收阵列的激活在传输过程中去耦

    公开(公告)号:US20140043029A1

    公开(公告)日:2014-02-13

    申请号:US13960791

    申请日:2013-08-06

    CPC classification number: G01R33/36 A61B5/055 G01R33/365

    Abstract: A system for electromagnetic excitation of an object under examination during magnetic resonance tomography includes a radio frequency (RF) device for generating a radio-frequency signal and a plurality of antennas for emitting the radio-frequency signal. A signal connection exists between the output of the RF device and the plurality of antennas. A source impedance of the signal connection to the output of the RF device at a connection point of the plurality of antennas is significantly higher than the impedance of the plurality of antennas at the connection points, so that the plurality of antennas are fed in a current source feed mode if a radio-frequency signal is present.

    Abstract translation: 在磁共振断层摄影中,检查对象的电磁激励系统包括用于产生射频信号的射频(RF)装置和用于发射射频信号的多个天线。 在RF设备的输出和多个天线之间存在信号连接。 在多个天线的连接点处的到RF设备的输出的信号连接的源阻抗显着高于连接点处的多个天线的阻抗,使得多个天线以当前的电流 如果存在射频信号,则源馈送模式。

    Radio-frequency acquisition device for a magnetic resonance tomography apparatus
    6.
    发明授权
    Radio-frequency acquisition device for a magnetic resonance tomography apparatus 有权
    用于磁共振断层摄影装置的射频获取装置

    公开(公告)号:US07583083B2

    公开(公告)日:2009-09-01

    申请号:US12179109

    申请日:2008-07-24

    CPC classification number: G01R33/3621

    Abstract: A radio-frequency acquisition device for a magnetic resonance tomography apparatus has at least one reception antenna for acquisition of magnetic resonance signals and with an amplifier device to amplify acquired magnetic resonance signals. The amplifier device has an input transistor and a transformation device to transform the source impedance of the acquisition antenna into a source impedance adapted to the input transistor, and wherein the transformation device can be switched between at least two transformation ratios.

    Abstract translation: 用于磁共振断层摄影装置的射频获取装置具有至少一个用于获取磁共振信号的接收天线和放大器装置以放大获取的磁共振信号。 放大器装置具有输入晶体管和变换装置,用于将采集天线的源阻抗变换成适于输入晶体管的源阻抗,并且其中转换装置可以在至少两个变换比之间切换。

    Activation of transmit/receive arrays for decoupling during transmission
    8.
    发明授权
    Activation of transmit/receive arrays for decoupling during transmission 有权
    在传输过程中激活发送/接收数组以进行去耦

    公开(公告)号:US09395427B2

    公开(公告)日:2016-07-19

    申请号:US13960791

    申请日:2013-08-06

    CPC classification number: G01R33/36 A61B5/055 G01R33/365

    Abstract: A system for electromagnetic excitation of an object under examination during magnetic resonance tomography includes a radio frequency (RF) device for generating a radio-frequency signal and a plurality of antennas for emitting the radio-frequency signal. A signal connection exists between the output of the RF device and the plurality of antennas. A source impedance of the signal connection to the output of the RF device at a connection point of the plurality of antennas is significantly higher than the impedance of the plurality of antennas at the connection points, so that the plurality of antennas are fed in a current source feed mode if a radio-frequency signal is present.

    Abstract translation: 在磁共振断层摄影中,检查对象的电磁激励系统包括用于产生射频信号的射频(RF)装置和用于发射射频信号的多个天线。 在RF设备的输出和多个天线之间存在信号连接。 在多个天线的连接点处的到RF设备的输出的信号连接的源阻抗显着高于连接点处的多个天线的阻抗,使得多个天线以当前的电流 如果存在射频信号,则源馈送模式。

    Automatic Detuning of Non-Connected Transceiver Coils for MRI
    10.
    发明申请
    Automatic Detuning of Non-Connected Transceiver Coils for MRI 审中-公开
    用于MRI的非连接收发器线圈自动失调

    公开(公告)号:US20140002085A1

    公开(公告)日:2014-01-02

    申请号:US13929746

    申请日:2013-06-27

    CPC classification number: G01R33/3628 G01R33/288 G01R33/341 G01R33/365

    Abstract: Methods and a device for automatic detuning of a magnetic resonance tomography (MRT) local coil not connected to an MRT system are provided. The device has self-closing switches that are closed or open, depending on the presence of an MRT high-frequency field.

    Abstract translation: 提供了不连接到MRT系统的磁共振断层摄影(MRT)本地线圈的自动失谐的方法和装置。 根据MRT高频场的存在,该装置具有闭合或断开的自闭合开关。

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