RF coil array for cardiac and thoracic magnetic resonance imaging
    1.
    发明授权
    RF coil array for cardiac and thoracic magnetic resonance imaging 有权
    用于心脏和胸部磁共振成像的RF线圈阵列

    公开(公告)号:US08624597B2

    公开(公告)日:2014-01-07

    申请号:US12978839

    申请日:2010-12-27

    IPC分类号: G01R33/44

    CPC分类号: G01R33/3415 G01R33/3678

    摘要: A radio frequency (RF) coil array includes a first coil section and a second coil section mechanically coupled to the first coil section. The first coil section includes a first row of a plurality of double asymmetric saddle coil pairs arranged in a left-right direction and a second row of a plurality of double asymmetric saddle coil pairs arranged in a left-right direction. The first row and the second row are arranged along a superior-inferior direction. The second coil section includes a plurality of loop coils arranged around at least a portion of a perimeter of the first coil section.

    摘要翻译: 射频(RF)线圈阵列包括机械耦合到第一线圈段的第一线圈段和第二线圈段。 第一线圈部分包括沿左右方向布置的多个双重非对称鞍形线圈对的第一排和沿左右方向布置的多个双非对称鞍形线圈对的第二排。 第一排和第二排沿着上下方向排列。 第二线圈部分包括围绕第一线圈部分的周边的至少一部分布置的多个环形线圈。

    RF COIL ARRAY FOR CARDIAC AND THORACIC MAGNETIC RESONANCE IMAGING
    2.
    发明申请
    RF COIL ARRAY FOR CARDIAC AND THORACIC MAGNETIC RESONANCE IMAGING 有权
    射频线圈用于心脏和胸腔磁共振成像

    公开(公告)号:US20120161769A1

    公开(公告)日:2012-06-28

    申请号:US12978839

    申请日:2010-12-27

    IPC分类号: G01R33/44

    CPC分类号: G01R33/3415 G01R33/3678

    摘要: A radio frequency (RF) coil array includes a first coil section and a second coil section mechanically coupled to the first coil section. The first coil section includes a first row of a plurality of double asymmetric saddle coil pairs arranged in a left-right direction and a second row of a plurality of double asymmetric saddle coil pairs arranged in a left-right direction. The first row and the second row are arranged along a superior-inferior direction. The second coil section includes a plurality of loop coils arranged around at least a portion of a perimeter of the first coil section.

    摘要翻译: 射频(RF)线圈阵列包括机械耦合到第一线圈段的第一线圈段和第二线圈段。 第一线圈部分包括沿左右方向布置的多个双重非对称鞍形线圈对的第一排和沿左右方向布置的多个双非对称鞍形线圈对的第二排。 第一排和第二排沿着上下方向排列。 第二线圈部分包括围绕第一线圈部分的周边的至少一部分布置的多个环形线圈。

    Mechanical force detection of magnetic fields using heterodyne demodulation
    3.
    发明授权
    Mechanical force detection of magnetic fields using heterodyne demodulation 有权
    使用外差解调的磁场机械力检测

    公开(公告)号:US07146282B1

    公开(公告)日:2006-12-05

    申请号:US11124599

    申请日:2005-05-06

    IPC分类号: G06F19/00 G01R27/00

    摘要: Localized magnetic fields are measured at frequencies into the microwave (GHz) regime using a conductive loop that is integrated on a vibratable member, such as a cantilever. Driving an alternating current at a first high frequency through the loop produces a high frequency alternating magnetic dipole at the same frequency as the current, with the alternating magnetic dipole normal to and centered within the loop. The alternating magnetic dipole at the center of the loop mixes with a sampled alternating magnetic field at a second high frequency at the center of the loop, resulting in application of a mechanical force to the loop and vibratable member. The vibratable member vibrates when the difference between the frequency of the loop current and the frequency of the sampled alternating magnetic field equals the resonant frequency of the vibratable member.

    摘要翻译: 使用集成在可振动构件(例如悬臂)上的导电回路,将频率测量到微波(GHz)状态下的局部磁场。 通过环路以第一高频驱动交流电流产生与电流相同频率的高频交变磁偶极子,其中交变磁偶极子垂直于环路并居中。 环路中心处的交变磁偶极子与循环中心处的第二高频处的采样交变磁场混合,从而对环路和可振动构件施加机械力。 当环路电流的频率和采样的交变磁场的频率之间的差值等于可振动部件的共振频率时,可振动部件振动。

    Radio frequency (RF) coil array with double asymmetric saddle coil pairs
    4.
    发明授权
    Radio frequency (RF) coil array with double asymmetric saddle coil pairs 有权
    射频(RF)线圈阵列,具有双重不对称鞍形线圈对

    公开(公告)号:US08179136B2

    公开(公告)日:2012-05-15

    申请号:US12474624

    申请日:2009-05-29

    IPC分类号: G01V3/00

    摘要: A radio frequency (RF) coil array includes a plurality of RF coil sections arranged in a superior-inferior direction. Each RF coil section includes a plurality of asymmetric saddle coil pairs configured in an overlapping arrangement in a left-right direction. The plurality of asymmetric saddle coil pairs may include three asymmetric saddle coil pairs arranged in a left-right direction. The position of the asymmetric saddle coil pairs on the left and right may be shifted in the superior-inferior direction with respect to the middle asymmetric saddle coil pair. In an alternative configuration, each RF coil section includes a first loop coil, an asymmetric saddle coil pair and a second loop coil arranged in a left-right direction.

    摘要翻译: 射频(RF)线圈阵列包括沿上下方向排列的多个RF线圈部。 每个RF线圈段包括以左右方向重叠布置配置的多个非对称鞍形线圈对。 多个非对称鞍形线圈对可以包括沿左右方向布置的三个非对称鞍形线圈对。 左右不对称鞍形线圈对的位置可以相对于中间的非对称鞍形线圈对在上下方向上移位。 在另一种配置中,每个RF线圈段包括第一环形线圈,非对称鞍形线圈对和沿左右方向布置的第二环形线圈。

    RADIO FREQUENCY (RF) COIL ARRAY WITH DOUBLE ASYMMETRIC SADDLE COIL PAIRS
    5.
    发明申请
    RADIO FREQUENCY (RF) COIL ARRAY WITH DOUBLE ASYMMETRIC SADDLE COIL PAIRS 有权
    无线电频率(RF)线圈,带双向不对称线圈对

    公开(公告)号:US20100265020A1

    公开(公告)日:2010-10-21

    申请号:US12474624

    申请日:2009-05-29

    IPC分类号: H01F27/28

    摘要: A radio frequency (RF) coil array includes a plurality of RF coil sections arranged in a superior-inferior direction. Each RF coil section includes a plurality of asymmetric saddle coil pairs configured in an overlapping arrangement in a left-right direction. The plurality of asymmetric saddle coil pairs may include three asymmetric saddle coil pairs arranged in a left-right direction. The position of the asymmetric saddle coil pairs on the left and right may be shifted in the superior-inferior direction with respect to the middle asymmetric saddle coil pair. In an alternative configuration, each RF coil section includes a first loop coil, an asymmetric saddle coil pair and a second loop coil arranged in a left-right direction.

    摘要翻译: 射频(RF)线圈阵列包括沿上下方向排列的多个RF线圈部。 每个RF线圈段包括以左右方向重叠布置配置的多个非对称鞍形线圈对。 多个非对称鞍形线圈对可以包括沿左右方向布置的三个非对称鞍形线圈对。 左右不对称鞍形线圈对的位置可以相对于中间的非对称鞍形线圈对在上下方向上移位。 在另一种配置中,每个RF线圈段包括第一环形线圈,非对称鞍形线圈对和沿左右方向布置的第二环形线圈。

    MECHANICAL FORCE DETECTION OF MAGNETIC FIELDS USING HETERODYNE DEMODULATION
    6.
    发明申请
    MECHANICAL FORCE DETECTION OF MAGNETIC FIELDS USING HETERODYNE DEMODULATION 有权
    使用异位解体的磁场检测机械力

    公开(公告)号:US20060265139A1

    公开(公告)日:2006-11-23

    申请号:US11124599

    申请日:2005-05-06

    IPC分类号: G01N31/00 G06F19/00

    摘要: Localized magnetic fields are measured at frequencies into the microwave (GHz) regime using a conductive loop that is integrated on a vibratable member, such as a cantilever. Driving an alternating current at a first high frequency through the loop produces a high frequency alternating magnetic dipole at the same frequency as the current, with the alternating magnetic dipole normal to and centered within the loop. The alternating magnetic dipole at the center of the loop mixes with a sampled alternating magnetic field at a second high frequency at the center of the loop, resulting in application of a mechanical force to the loop and vibratable member. The vibratable member vibrates when the difference between the frequency of the loop current and the frequency of the sampled alternating magnetic field equals the resonant frequency of the vibratable member.

    摘要翻译: 使用集成在可振动构件(例如悬臂)上的导电回路,将频率测量到微波(GHz)状态下的局部磁场。 通过环路以第一高频驱动交流电流产生与电流相同频率的高频交变磁偶极子,其中交变磁偶极子垂直于环路并居中。 环路中心处的交变磁偶极子与循环中心处的第二高频处的采样交变磁场混合,从而对环路和可振动构件施加机械力。 当环路电流的频率和采样的交变磁场的频率之间的差值等于可振动部件的共振频率时,可振动部件振动。