Flexible signal multiplexer for MRI receiving systems

    公开(公告)号:US10101418B2

    公开(公告)日:2018-10-16

    申请号:US14842033

    申请日:2015-09-01

    Abstract: The embodiments relate to a method and a receiving system for an imaging magnetic resonance tomography system. The receiving system includes at least one multiplexer entity for a plurality of receive signals, which respectively come from an antenna of a local coil and may be switched to an analog-digital converter, wherein sampling rates (e.g., 20 MS/s per Ch, 40 MS/s per Ch, 80 MS/s per Ch) of an analog-digital converter for the sampling of a receive signal may be changed.

    Method for the control of a magnetic resonance system
    165.
    发明授权
    Method for the control of a magnetic resonance system 有权
    用于控制磁共振系统的方法

    公开(公告)号:US09547064B2

    公开(公告)日:2017-01-17

    申请号:US13645093

    申请日:2012-10-04

    CPC classification number: G01R33/583 G01R33/341

    Abstract: A method for the control of a magnetic resonance system is provided. In a test phase before a magnetic resonance measurement, a test high-frequency pulse with several parallel individual high-frequency pulses is transmitted with a transmitter antenna arrangement over various different high-frequency transmitter channels. At lower transmitter power, the test high-frequency pulse generates essentially the same field distribution as an excitation high-frequency pulse to be transmitted during a subsequent magnetic resonance measurement. A high-frequency field generated by this test high-frequency pulse is measured in at least one area of a local pulse arrangement, and on the basis of the high-frequency field measured, a high-frequency field value that is to be anticipated at the local coil arrangement during the subsequent magnetic resonance measurement is determined. The control of the magnetic resonance system during a later magnetic resonance measurement includes taking the high-frequency field value into account.

    Abstract translation: 提供了一种用于控制磁共振系统的方法。 在磁共振测量之前的测试阶段,具有几个并联的单个高频脉冲的测试高频脉冲通过各种不同的高频发射机通道上的发射机天线布置发射。 在较低的发射机功率下,测试高频脉冲产生与随后的磁共振测量期间传输的激发高频脉冲基本相同的场分布。 由本测试高频脉冲产生的高频场是在局部脉冲布置的至少一个区域中测量的,并且基于所测量的高频场,测量在高频场中预期的高频场值 在随后的磁共振测量期间确定局部线圈布置。 在后来的磁共振测量中,磁共振系统的控制包括考虑高频场值。

    MAGNETIC RESONANCE DEVICE
    167.
    发明申请
    MAGNETIC RESONANCE DEVICE 审中-公开
    磁共振装置

    公开(公告)号:US20160223629A1

    公开(公告)日:2016-08-04

    申请号:US15015093

    申请日:2016-02-03

    CPC classification number: G01R33/3685

    Abstract: An MR device includes at least one body coil for generating a B1 magnetic field and at least one radiofrequency line routed through the B1 magnetic field. The at least one radiofrequency line has at least one frequency filter for blocking a voltage induced by the B1 magnetic field. At least one section of the radiofrequency line routed through the B1 magnetic field is embodied in printed circuit board technology on at least one printed circuit board, and information-carrying signals may be transmitted over the at least one radiofrequency line on a different frequency than the frequency of the voltage induced by the B1 magnetic field.

    Abstract translation: MR装置包括用于产生B1磁场的至少一个体线圈和通过B1磁场路由的至少一个射频线。 所述至少一个射频线具有至少一个用于阻挡由B1磁场引起的电压的频率滤波器。 通过B1磁场路由的射频线路的至少一个部分在印刷电路板技术中体现在至少一个印刷电路板上,并且信息载体信号可以通过至少一个射频线路以不同于 由B1磁场引起的电压频率。

    Shim coil arrangement for an extremity of a patient
    168.
    发明授权
    Shim coil arrangement for an extremity of a patient 有权
    用于患者肢体的Shim线圈装置

    公开(公告)号:US09329247B2

    公开(公告)日:2016-05-03

    申请号:US13864004

    申请日:2013-04-16

    Applicant: Stephan Biber

    Inventor: Stephan Biber

    CPC classification number: G01R33/34084 G01R33/34046 G01R33/3875 G01R33/5607

    Abstract: A shim coil arrangement for at least one extremity of a patient such as a forearm and/or a hand for use in a magnetic resonance device is provided. The shim coil arrangement is arranged surrounding a receptacle for the at least one extremity. At least two planar shim coils having a common coil plane that lies at right angles to a direction of a basic magnetic field of the magnetic resonance device in a usage state and/or to a longitudinal direction of the receptacle are arranged around a circumference of the receptacle. A plurality of coil planes succeeding one another in the direction of the basic magnetic field of the magnetic resonance device in the usage state and/or the longitudinal direction of the receptacle and at right angles to the direction of the basic magnetic field and/or the longitudinal direction are provided with at least two planar shim coils.

    Abstract translation: 提供了用于磁共振装置中使用的诸如前臂和/或手的患者的至少一个末端的垫片线圈装置。 垫片线圈布置围绕用于至少一个末端的容器布置。 在使用状态和/或插座的纵向方向上,具有与磁共振装置的基本磁场的方向成直角的公共线圈平面的至少两个平面的垫片线圈围绕着 容器。 在使用状态和/或插座的纵向方向上与磁共振装置的基本磁场的方向彼此相对并且与基本磁场的方向成直角的多个线圈平面和/或 纵向具有至少两个平面垫片线圈。

    SHEATH CURRENT FILTER WITH INTEGRATED OPTICAL CABLE GUIDE
    169.
    发明申请
    SHEATH CURRENT FILTER WITH INTEGRATED OPTICAL CABLE GUIDE 审中-公开
    具有集成光缆指南的电流滤波器

    公开(公告)号:US20160011286A1

    公开(公告)日:2016-01-14

    申请号:US14797358

    申请日:2015-07-13

    Applicant: Stephan Biber

    Inventor: Stephan Biber

    CPC classification number: G01R33/3685 G01R33/341 G01R33/3415

    Abstract: A sheath current for an imaging magnetic resonance tomography system is provided, wherein a coil element of the sheath current filter is embodied to surround a waveguide of the sheath current filter, a local coil connection, and a local coil.

    Abstract translation: 提供了用于成像磁共振断层摄影系统的护套电流,其中鞘电流滤波器的线圈元件被实施为围绕护套电流滤波器的波导,局部线圈连接和局部线圈。

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