Recording of calibration data for a magnetic resonance system

    公开(公告)号:US09664766B2

    公开(公告)日:2017-05-30

    申请号:US13631638

    申请日:2012-09-28

    申请人: Stephan Biber

    发明人: Stephan Biber

    CPC分类号: G01R33/583 G01R33/3415

    摘要: A local coil with a plurality of magnetic resonance antenna elements and a plurality of test signal coupling units assigned individually or in groups to the plurality of magnetic resonance antenna elements is provided. In order to transmit a test signal, each test signal coupling unit of the plurality of test signal coupling units is connected via a star connection unit to a joint test signal connector and/or to a transmission cable of a transmit and/or receive chain of an assigned magnetic resonance antenna element of the plurality of magnetic resonance antenna elements.

    Receiving coil and local coil for magnetic resonance applications with adjustable lugs
    12.
    发明授权
    Receiving coil and local coil for magnetic resonance applications with adjustable lugs 有权
    接收线圈和本地线圈用于具有可调接线片的磁共振应用

    公开(公告)号:US09547054B2

    公开(公告)日:2017-01-17

    申请号:US13441900

    申请日:2012-04-08

    IPC分类号: G01R33/3415 G01R33/34

    CPC分类号: G01R33/34084 G01R33/3415

    摘要: A local coil for magnetic resonance applications includes a rigid housing that radially surrounds a substantially cylindrical examination volume. Arranged in the rigid housing is a transmitting coil, by which an excitation signal may be applied to the examination volume. An object to be examined arranged in the examination volume may be excited by the excitation signal for emitting a magnetic resonance signal. The local coil includes a size-variable structure, in which an antenna assembly for receiving the magnetic resonance signal emitted by the object to be examined is arranged. The size-variable structure is arranged in the examination volume and is connected to the rigid housing. The size-variable structure is soft and flexible.

    摘要翻译: 用于磁共振应用的局部线圈包括径向围绕基本上圆柱形的检查体积的刚性壳体。 布置在刚性壳体中的是发射线圈,通过该线圈可以将激励信号施加到检查体积。 检查体中被布置的检查对象可以被用于发出磁共振信号的激励信号激发。 本地线圈包括尺寸可变的结构,其中布置有用于接收由被检查物体发射的磁共振信号的天线组件。 尺寸可变结构布置在检查体积中,并连接到刚性外壳。 尺寸可变结构柔软灵活。

    Antenna circuit for an MRI system
    13.
    发明授权
    Antenna circuit for an MRI system 有权
    用于MRI系统的天线电路

    公开(公告)号:US09297868B2

    公开(公告)日:2016-03-29

    申请号:US13277006

    申请日:2011-10-19

    摘要: The present embodiments include an antenna circuit that is adapted to supply and/or read out a plurality of antenna elements of an antenna assembly of a magnetic resonance imaging system. The antenna elements are decoupled by phase shifter elements and supplied with signals by the phase shifter elements. The antenna circuit may also be used to detect signals that are received by the antenna elements.

    摘要翻译: 本实施例包括适于提供和/或读出磁共振成像系统的天线组件的多个天线元件的天线电路。 天线元件由移相器元件解耦并由移相器元件提供信号。 天线电路还可以用于检测由天线元件接收的信号。

    Magnetic Resonance Facility with a Display Apparatus
    15.
    发明申请
    Magnetic Resonance Facility with a Display Apparatus 审中-公开
    具有显示装置的磁共振设备

    公开(公告)号:US20150297148A1

    公开(公告)日:2015-10-22

    申请号:US14687301

    申请日:2015-04-15

    IPC分类号: A61B5/00 A61B5/055

    CPC分类号: A61B5/7445 A61B5/055

    摘要: A magnetic resonance facility has a main magnet unit with a cylindrical patient accommodation region, and an optical display apparatus with at least one display unit disposed within the patient accommodation region in a region viewable by a patient positioned therein for the magnetic resonance measurement. The display apparatus is shaped at least partially to follow the boundary of the patient accommodation region.

    摘要翻译: 磁共振设备具有带有圆柱形患者容纳区域的主磁体单元和具有至少一个显示单元的光学显示装置,该至少一个显示单元设置在患者容纳区域内的可由定位在其中进行磁共振测量的患者可视区域中。 显示装置至少部分地成形为跟随患者住宿区域的边界。

    Transmitting Antenna Device and Magnetic Resonance Imaging System
    16.
    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

    摘要: 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.

    摘要翻译: 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。

    Receiver Assembly of a Magnetic Resonance Imaging System
    17.
    发明申请
    Receiver Assembly of a Magnetic Resonance Imaging System 审中-公开
    磁共振成像系统的接收器组件

    公开(公告)号:US20150260821A1

    公开(公告)日:2015-09-17

    申请号:US14657852

    申请日:2015-03-13

    摘要: A receiver assembly of a magnetic resonance (MR) system for generating MR recordings of an examination object includes a plurality of reception channels for receiving and amplifying MR signals from reception coils of the MR system connected therewith. A calibration data memory for storing calibration data for the plurality of reception channels is arranged on the receiver assembly. The receiver assembly includes a data link for transmitting the calibration data to the MR system.

    摘要翻译: 用于产生检查对象的MR记录的磁共振(MR)系统的接收器组件包括用于从与其连接的MR系统的接收线圈接收和放大MR信号的多个接收通道。 用于存储多个接收通道的校准数据的校准数据存储器被布置在接收器组件上。 接收器组件包括用于将校准数据发送到MR系统的数据链路。

    Signal path for a small signal occurring in a magnetic resonance system
    18.
    发明授权
    Signal path for a small signal occurring in a magnetic resonance system 有权
    在磁共振系统中发生小信号的信号路径

    公开(公告)号:US09118101B2

    公开(公告)日:2015-08-25

    申请号:US13458887

    申请日:2012-04-27

    申请人: Stephan Biber

    发明人: Stephan Biber

    IPC分类号: H01P3/16 G01R33/36

    摘要: A signal path for a small signal oscillating at a frequency of at least 20 GHz occurring in a magnetic resonance system has a signal source generating the small signal and a signal sink processing the small signal. The small signal is transmitted on a path from the signal source to the signal sink at least in a part section via a cable. The part section of the signal path, in which the small signal is transmitted via the cable, is embodied at least partly as a dielectric waveguide. The dielectric waveguide is disposed at least partly within an examination volume of the magnetic resonance system. The dielectric waveguide is delimited on a source side by a source-side mode converter and on a sink side, by a sink-side mode converter. The small signal is supplied to the source-side mode converter via a source-side electrical conductor and injected by the sink-side mode converter into a sink-side electrical conductor.

    摘要翻译: 在磁共振系统中发生以至少20GHz的频率振荡的小信号的信号路径具有产生小信号的信号源和信号接收处理小信号。 小信号至少在部分通过电缆从信号源到信号宿的路径上传输。 通过电缆传输小信号的信号路径的部分部分至少部分地被实现为电介质波导。 电介质波导至少部分地设置在磁共振系统的检查体积内。 电介质波导通过源侧模式转换器在源极侧和在接收侧由漏极侧模式转换器限定。 小信号通过源极电导体提供给源极侧模式转换器,并由漏极侧模式转换器注入到沉没侧电导体中。

    Local coil for a magnetic resonance device
    20.
    发明授权
    Local coil for a magnetic resonance device 有权
    用于磁共振装置的局部线圈

    公开(公告)号:US09057768B2

    公开(公告)日:2015-06-16

    申请号:US13300092

    申请日:2011-11-18

    申请人: Stephan Biber

    发明人: Stephan Biber

    IPC分类号: G01R33/36 G01R33/3415

    摘要: A local coil for a magnetic resonance device includes a double resonance conductor loop arrangement having at least one conductor loop, and a converter apparatus configured for converting operating energy received at a first resonance frequency into an operating voltage. The local coil also includes an electronics arrangement operated with the operating voltage for processing magnetic resonance signals received at a second resonance frequency.

    摘要翻译: 用于磁共振装置的本地线圈包括具有至少一个导体回路的双谐振导体回路装置,以及被配置为将在第一谐振频率接收的操作能量转换成工作电压的转换器装置。 本地线圈还包括用于处理以第二谐振频率接收的磁共振信号的工作电压来操作的电子装置。