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640 条记录 (耗时 0.031 秒)

    Systems and methods for disconnecting an MRI RF coil
    141.
    发明授权
    Systems and methods for disconnecting an MRI RF coil 有权

    公开(公告)号：US10254361B2

    公开(公告)日：2019-04-09

    申请号：US15268397

    申请日：2016-09-16

    申请人： General Electric Company

    发明人： Fraser John Laing Robb ,  Robert Steven Stormont ,  Youqing Zhang ,  Victor Taracila ,  Miguel Angel Navarro, II ,  Dan Kenrick Spence ,  Shuying Huang ,  Peter Roemer

    IPC分类号： G01R33/36 ,  G01R33/341

    摘要： Various methods and systems are provided for a disconnecting a receive coil from a transmit coil of a magnetic resonance (MR) system during a transmit operation. In one example, a cabling system may include a first line of coil-interfacing cable having a first set of hybrid switches, the first set of hybrid switches including a first switch, a first resonance circuit, and a second switch connected in series, and a second line of the coil-interfacing cable having a second set of hybrid switches, the first line and the second line of the coil-interfacing cable operably coupling one or more radio frequency (RF) coil elements to respective channels of the MR system. By positioning the first and the second sets of hybrid switches along different locations along the coil-interfacing cables, and simultaneously operating each set of hybrid switches, common mode currents may be interrupted along the coil-interfacing cables.

    Magnetic resonance signal processing method, magnetic resonance signal processing apparatus and magnetic resonance apparatus, and program
    143.
    发明授权
    Magnetic resonance signal processing method, magnetic resonance signal processing apparatus and magnetic resonance apparatus, and program 有权

    公开(公告)号：US10156617B2

    公开(公告)日：2018-12-18

    申请号：US15321332

    申请日：2015-06-30

    申请人： General Electric Company

    发明人： Mitsuhiro Bekku

    IPC分类号： G01R33/34 ,  G01R33/24 ,  G01R33/36 ,  G01R33/565 ,  G01R33/58 ,  G01R33/341

    摘要： An apparatus and method for decoupling between a body coil and a surface coil. The method comprising a first acquiring step of acquiring magnetic resonance (MR) signals by concurrent reception by a body coil and a surface coil in a plurality of views; a second acquiring step of acquiring MR signals by independent reception by the body coil in some of the plurality of views; an identifying step of identifying a correspondence between the concurrently-received MR signal for the body coil, the concurrently-received MR signals for the surface coil, and the independently-received MR signal for the body coil based on the concurrently-received MR signals in the some views and the independently-received MR signals for the body coil; and a calculation step of determining the independently-received MR signals for the body coil in others of the plurality of views based on the correspondence and using the concurrently-received MR signals for the body coil and surface coil in the other views.

    Foldable coil array
    145.
    发明授权
    Foldable coil array 有权

    公开(公告)号：US10132883B2

    公开(公告)日：2018-11-20

    申请号：US15169183

    申请日：2016-05-31

    申请人： General Electric Company

    发明人： Dashen Chu ,  Scott Allen Lindsay ,  Dawei Gui ,  James Hiroshi Akao ,  Zhu Li

    IPC分类号： G01V3/00 ,  G01R33/341 ,  G01R33/34 ,  G01R33/30 ,  G01R33/36 ,  H01F7/20 ,  H03H7/40

    摘要： In one example, an RF coil array includes a first RF coil configured to generate a magnetic field along a first axis, the first RF coil having a first surface, a second RF coil configured to generate a magnetic field along a second axis, orthogonal to the first axis, the second RF coil having a second surface, and a first foldable interconnect coupling the first RF coil to the second RF coil. The first foldable interconnect may be adjusted to couple the first RF coil to the second RF coil with a first amount of overlap and with the first surface and second surface facing a common direction, or couple the first RF coil to the second RF coil with a second amount of overlap, larger than the first amount of overlap, and with the first surface in face to face position with the second surface.

    Gradient coil sub-assemblies
    148.
    发明授权
    Gradient coil sub-assemblies 有权

    公开(公告)号：US10031194B2

    公开(公告)日：2018-07-24

    申请号：US14162334

    申请日：2014-01-23

    申请人： Tesla Engineering Limited

    发明人： Allen Raymond Camp

    IPC分类号： G01R3/00 ,  G01R33/341 ,  G01R33/385 ,  G01R33/34

    摘要： An MRIS gradient coil sub-assembly comprising a first coil layer comprising a first conducting coil portion, a second coil layer comprising a second conductive coil portion electrically connected with the first conductive coil portion so that the first and second conductive coil portions act together as one coil, and a B-stage material consolidation layer sandwiched between the first and second coil layers.