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    Surface coil decoupling means for MRI systems
    5.
    发明授权
    Surface coil decoupling means for MRI systems 有权
    用于MRI系统的表面线圈去耦装置

    公开(公告)号：US06927575B2

    公开(公告)日：2005-08-09

    申请号：US10761553

    申请日：2004-01-21

    Applicant: Michael Burl ,  Mark Xueming Zou

    Inventor： Michael Burl ,  Mark Xueming Zou

    IPC: G01R33/3415 ,  G01R33/36 ,  G01V3/00

    CPC classification number: G01R33/365 ,  G01R33/3415

    Abstract: A system and method for decoupling coils in a medical imaging system are provided. The coil system includes a first coil of a medical imaging system, a second coil of the medical imaging system, and a balun device connected to the first and second coils. The balun device is configured to decouple the first and second coils of the medical imaging system.

    Abstract translation: 提供了一种用于在医学成像系统中去耦线圈的系统和方法。 线圈系统包括医疗成像系统的第一线圈，医疗成像系统的第二线圈和连接到第一和第二线圈的平衡 - 不平衡转换器件。 平衡 - 不平衡变压器装置被配置为使医疗成像系统的第一和第二线圈解耦。

    Transmit mode coil detuning for MRI systems
    7.
    发明授权
    Transmit mode coil detuning for MRI systems 有权
    MRI系统的发射模式线圈失谐

    公开(公告)号：US06850067B1

    公开(公告)日：2005-02-01

    申请号：US10440834

    申请日：2003-05-19

    Applicant: Michael Burl ,  Mark Xueming Zou

    Inventor： Michael Burl ,  Mark Xueming Zou

    IPC: G01R33/36 ,  G01V3/00

    CPC classification number: G01R33/3657 ,  G01R33/3628

    Abstract: A detuning circuit for an MRI coil having a series tuning capacitor includes: a detuning inductor and a PIN diode in parallel communication with the tuning capacitor, where the tuning capacitor has a tuning inductor node and a PIN diode node; a first diode and a second diode in parallel communication with the PIN diode, where the first, second and PIN diodes are arranged with the same serial polarity and the first and second diodes have a common node; and a reactance in communication between the common node and the tuning inductor node. The circuit detunes the MRI coil in response to an MRI transmit pulse. A detuning circuit for an MRI coil having a series tuning capacitor includes a detuning inductor; and a detuning switch in parallel combination with a secondary tuning capacitor, the detuning inductor and the parallel combination being in parallel communication with the series tuning capacitor. The secondary tuning capacitor acts to reduce current during detuning of the MRI coil.

    Abstract translation: 具有串联调谐电容器的MRI线圈的失谐电路包括：调谐电感器和与调谐电容并联连接的PIN二极管，其中调谐电容器具有调谐电感器节点和PIN二极管节点; 与PIN二极管并联连接的第一二极管和第二二极管，其中第一，第二和PIN二极管以相同的串行极性布置，并且第一和第二二极管具有公共节点; 以及在公共节点和调谐电感器节点之间的通信中的电抗。 该电路响应于MRI发射脉冲使MRI线圈断线。 具有串联调谐电容器的MRI线圈的失谐电路包括失谐电感器; 以及与二次调谐电容并联组合的失谐开关，所述失谐电感器和所述并联组合与所述串联调谐电容器并联连接。 二次调谐电容器用于在MRI线圈失谐期间减小电流。

    Flexible multi-section MRI radio frequency array coil
    8.
    发明授权
    Flexible multi-section MRI radio frequency array coil 有权
    灵活多段MRI射频阵列线圈

    公开(公告)号：US06650926B1

    公开(公告)日：2003-11-18

    申请号：US10108834

    申请日：2002-03-28

    Applicant: Pei Hsuon Chan ,  Mark Xueming Zou

    Inventor： Pei Hsuon Chan ,  Mark Xueming Zou

    IPC: A61B5055

    CPC classification number: G01R33/3415 ,  G01R33/34084

    Abstract: A MRI array coil includes a first anterior array and a second anterior array where the first and second anterior arrays each have a rigid longitudinal support, the supports being hingingly joined; and a first posterior array and a second posterior array. The first arrays are adapted to image a first volume of interest and the second arrays are adapted to image a second volume of interest, where the volumes of interest are longitudinally displaced.

    Abstract translation: MRI阵列线圈包括第一前阵列和第二前阵列，其中所述第一和第二前阵列各自具有刚性纵向支撑件，所述支撑件铰接地连接; 和第一后部阵列和第二后部阵列。 第一阵列适于对第一感兴趣体积进行成像，并且第二阵列适于对感兴趣的体积纵向移位的第二感兴趣体积进行成像。

    Head coil arrays for parallel imaging in magnetic resonance imaging
    10.
    发明授权
    Head coil arrays for parallel imaging in magnetic resonance imaging 有权
    用于磁共振成像中的并行成像的头部线圈阵列

    公开(公告)号：US06930480B1

    公开(公告)日：2005-08-16

    申请号：US10187353

    申请日：2002-06-28

    Applicant: Hiroyuki Fujita ,  Labros S. Petropoulos ,  Mark Xueming Zou ,  Pei H. Chan ,  Dashen Chu ,  Joseph Murphy-Boesch

    Inventor： Hiroyuki Fujita ,  Labros S. Petropoulos ,  Mark Xueming Zou ,  Pei H. Chan ,  Dashen Chu ,  Joseph Murphy-Boesch

    IPC: G01R33/34 ,  G01R33/561 ,  G01V3/00

    CPC classification number: G01R33/34046 ,  G01R33/5611

    Abstract: A partially parallel acquisition RF coil array for imaging a human head includes at least a first, a second and a third loop coil adapted to be arranged circumambiently about the lower portion of the head; and at least a forth, a fifth and a sixth coil adapted to be conformably arranged about the summit of the head. A partially parallel acquisition RF coil array for imaging a human head includes at least a first, a second, a third and a fourth loop coil adapted to be arranged circumambiently about the lower portion of the head; and at least a first and a second Figure-8 or saddle coil adapted to be conformably arranged about the summit of the head.

    Abstract translation: 用于对人头进行成像的部分并行采集RF线圈阵列包括至少第一，第二和第三环形线圈，其适于围绕头部的下部周边布置; 以及适于围绕头部的顶点顺应地布置的至少一个第四，第五和第六线圈。 用于对人头进行成像的部分并行采集RF线圈阵列包括至少第一，第二，第三和第四环形线圈，其适于围绕头部的下部周边布置; 以及至少第一和第二图8或鞍形线圈，其适于围绕头部的顶点顺应地布置。

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