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    Inherently de-coupled sandwiched solenoidal array coil
    1.
    发明授权
    Inherently de-coupled sandwiched solenoidal array coil 有权
    固有的去耦合夹层螺线管阵列线圈

    公开(公告)号：US06493572B1

    公开(公告)日：2002-12-10

    申请号：US09408506

    申请日：1999-09-30

    申请人： Sunyu Su ,  Leon Kaufman ,  Mitsuaki Arakawa ,  Joseph W. Carlson

    发明人： Sunyu Su ,  Leon Kaufman ,  Mitsuaki Arakawa ,  Joseph W. Carlson

    IPC分类号： A61B5055

    CPC分类号： G01R33/3415

    摘要： An inherently de-coupled sandwiched solenoidal array coil (SSAC) is disclosed for use in receiving nuclear magnetic resonance (NMR) radio frequency (RF) signals in both horizontal and vertical-field magnetic resonance imaging (MRI) systems. In its most basic configuration, the SSAC comprises two coaxial RF receive coils. The first coil of the array has two solenoidal (or loop) sections that are separated from one another along a common axis. The two sections are electrically connected in series but the conductors in each section are wound in opposite directions so that a current through the coil sets up a magnetic field of opposite polarity in each section. The second coil of the SSAC is disposed (“sandwiched”) between the two separated solenoidal sections of the first coil in a region where the combined opposing magnetic fields cancel to become a null. Due to the winding arrangement and geometrical symmetry, the receive coils of the array become electromagnetically “de-coupled” from one another while still maintaining their sensitivity toward receiving NMR signals. The multiple coil array arrangement also allows for selecting between a larger or smaller field-of-view (FOV) to avoid image fold-over problems without time penalty in image data acquisition. Alternative embodiments are disclosed which include unequal constituent coil diameters, unequal constituent coil windings, non-coaxial coil configurations, a three-coil quadrature detection (QD) SSAC arrangement, multiple SSAC arrangements, and optimized SSAC configurations for breast imaging in both horizontal and vertical-field MRI systems.

    摘要翻译： 公开了一种固有的去耦合的夹层螺线管阵列线圈（SSAC），用于在水平和垂直场磁共振成像（MRI）系统中接收核磁共振（NMR）射频（RF）信号。 在其最基本的配置中，SSAC包括两个同轴RF接收线圈。 阵列的第一个线圈具有沿公共轴彼此分离的两个螺线管（或环）部分。 两个部分串联电连接，但每个部分中的导体沿相反的方向缠绕，使得通过线圈的电流在每个部分中建立相反极性的磁场。 SSAC的第二线圈在组合的相对磁场取消为零的区域中被布置（“夹持”在第一线圈的两个分离的螺线管部分之间）。 由于绕组布置和几何对称性，阵列的接收线圈彼此电磁“去耦合”，同时仍然保持对接收NMR信号的灵敏度。 多线圈阵列布置还允许在更大或更小的视场（FOV）之间进行选择，以避免图像折叠问题，而在图像数据采集中没有时间损失。 公开了包括不等构成线圈直径，不相等的构成线圈绕组，非同轴线圈配置，三线圈正交检测（QD）SSAC布置，多个SSAC布置以及用于乳腺成像在水平和垂直方向上的优化SSAC配置的替代实施例 场MRI系统。

    Inherently de-coupled sandwiched solenoidal array coil
    2.
    发明授权
    Inherently de-coupled sandwiched solenoidal array coil 有权

    公开(公告)号：US06751496B2

    公开(公告)日：2004-06-15

    申请号：US09935705

    申请日：2001-08-24

    申请人： Sunyu Su ,  Leon Kaufman ,  Mitsuaki Arakawa

    发明人： Sunyu Su ,  Leon Kaufman ,  Mitsuaki Arakawa

    IPC分类号： A61B5055

    CPC分类号： G01R33/3415

    摘要： An inherently de-coupled sandwiched solenoidal array coil (SSAC) is disclosed for use in receiving nuclear magnetic resonance (NMR) radio frequency (RF) signals in both horizontal and vertical-field magnetic resonance imaging (MRI) systems. In its most basic configuration, the SSAC comprises two coaxial RF receive coils. The first coil of the array has two solenoidal (or loop) sections that are separated from one another along a common axis. The two sections are electrically connected in series but the conductors in each section are wound in opposite directions so that a current through the coil sets up a magnetic field of opposite polarity in each section. The second coil of the SSAC is disposed (“sandwiched”) between the two separated solenoidal sections of the first coil in a region where the combined opposing magnetic fields cancel to become a null. Due to the winding arrangement and geometrical symmetry, the receive coils of the array become electromagnetically “de-coupled” from one another while still maintaining their sensitivity toward receiving NMR signals. The multiple coil array arrangement also allows for selecting between a larger or smaller field-of-view (FOV) to avoid image fold-over problems without time penalty in image data acquisition. Alternative embodiments are disclosed which include unequal constituent coil diameters, unequal constituent coil windings, non-coaxial coil configurations, a three-coil quadrature detection (QD) SSAC arrangement, multiple SSAC arrangements, and optimized SSAC configurations for breast imaging in both horizontal and vertical-field MRI systems.

    Inherently de-coupled sandwiched solenoidal array coil
    3.
    发明授权
    Inherently de-coupled sandwiched solenoidal array coil 有权
    固有的去耦合夹层螺线管阵列线圈

    公开(公告)号：US06701178B2

    公开(公告)日：2004-03-02

    申请号：US10283292

    申请日：2002-10-30

    申请人： Sunyu Su ,  Leon Kaufman

    发明人： Sunyu Su ,  Leon Kaufman

    IPC分类号： A61B5055

    CPC分类号： G01R33/3415

    摘要： An inherently de-coupled sandwiched solenoidal array coil (SSAC) is disclosed for use in receiving nuclear magnetic resonance (NMR) radio frequency (RF) signals in both horizontal and vertical-field magnetic resonance imaging (MRI) systems. In its most basic configuration, the SSAC comprises two coaxial RF receive coils. The first coil of the array has two solenoidal (or loop) sections that are separated from one another along a common axis. The two sections are electrically connected in series but the conductors in each section are wound in opposite directions so that a current through the coil sets up a magnetic field of opposite polarity in each section. The second coil of the SSAC is disposed (“sandwiched”) between the two separated solenoidal sections of the first coil in a region where the combined opposing magnetic fields cancel to become a null. Due to the winding arrangement and geometrical symmetry, the receive coils of the array become electromagnetically “de-coupled” from one another while still maintaining their sensitivity toward receiving NMR signals. The multiple coil array arrangement also allows for selecting between a larger or smaller field-of-view (FOV) to avoid image fold-over problems without time penalty in image data acquisition. Alternative embodiments are disclosed which include unequal constituent coil diameters, unequal constituent coil windings, non-coaxial coil configurations, a three-coil quadrature detection (QD) SSAC arrangement, multiple SSAC arrangements, and optimized SSAC configurations for breast imaging in both horizontal and vertical-field MRI systems.

    摘要翻译： 公开了一种固有的去耦合的夹层螺线管阵列线圈（SSAC），用于在水平和垂直场磁共振成像（MRI）系统中接收核磁共振（NMR）射频（RF）信号。 在其最基本的配置中，SSAC包括两个同轴RF接收线圈。 阵列的第一个线圈具有沿公共轴彼此分离的两个螺线管（或环）部分。 两个部分串联电连接，但是每个部分中的导体沿相反的方向缠绕，使得通过线圈的电流在每个部分中建立相反极性的磁场。 SSAC的第二线圈在组合的相对磁场取消为零的区域中被布置（“夹持”在第一线圈的两个分离的螺线管部分之间）。 由于绕组布置和几何对称性，阵列的接收线圈彼此电磁“去耦合”，同时仍然保持对接收NMR信号的灵敏度。 多线圈阵列布置还允许在更大或更小的视场（FOV）之间进行选择，以避免图像折叠问题，而在图像数据采集中没有时间损失。 公开了包括不等构成线圈直径，不相等的构成线圈绕组，非同轴线圈配置，三线圈正交检测（QD）SSAC布置，多个SSAC布置以及用于乳腺成像在水平和垂直方向上的优化SSAC配置的替代实施例 场MRI系统。

    Quadrature and linear RF coil array for MRI of human spine and torso
    4.
    发明授权
    Quadrature and linear RF coil array for MRI of human spine and torso 有权
    用于人类脊柱和躯干MRI的正交和线性RF线圈阵列

    公开(公告)号：US08441258B2

    公开(公告)日：2013-05-14

    申请号：US12706533

    申请日：2010-02-16

    申请人： Pei H. Chan ,  Yiping Guan ,  Fraser J. Robb ,  Sunyu Su

    发明人： Pei H. Chan ,  Yiping Guan ,  Fraser J. Robb ,  Sunyu Su

    IPC分类号： G01V3/14 ,  G01R33/483

    CPC分类号： G01R33/3415 ,  G01R33/3678 ,  G01R33/5611

    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 first linear coil element, a loop-saddle coil quadrature pair and a second linear coil element configured in an overlapping arrangement in a left-right direction. The position of the first linear coil element and the second linear coil element on the left and right may be shifted in the superior-inferior direction with respect to the center loop-saddle coil quadrature pair.

    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线圈部分包括第一线性线圈元件，环形鞍形线圈正交对和以左右方向重叠布置配置的第二线性线圈元件。 第一线性线圈元件和第二线性线圈元件在左右的位置可以相对于中心匝线圈正交对在上下方向上移位。

    Quadrature detection coil for interventional MRI
    5.
    发明授权
    Quadrature detection coil for interventional MRI 失效
    用于介入MRI的正交检测线圈

    公开(公告)号：US06198962B1

    公开(公告)日：2001-03-06

    申请号：US09199411

    申请日：1998-11-25

    申请人： Sunyu Su

    发明人： Sunyu Su

    IPC分类号： A61B5055

    CPC分类号： G01R33/34069 ,  A61B5/055 ,  G01R33/285 ,  G01R33/34046 ,  G01R33/3678

    摘要： An RF quadrature detection coil for interventional MRI comprises two nested orthogonal coils having generally rectangular shape in profile, each coil providing one “channel” of signal for quadrature detection. Each rectangular coil has two conductor windings and a common side in which the two conductors along that side are displaced apart in a common plane orthogonal to the plane of the coil to form a circular opening. The two individual coils are configured such that their rectangular conductor winding portions lie in planes perpendicular to each other but their arcuate conductor winding portions coincide in the same plane. Four paralleled conductors are arranged around the shared circular opening while two paralleled conductors form the three sides of the rectangular portion of each individual coil. With this arrangement, the circular opening allows for entry of a body part for MR imaging while the spaces between the orthogonal rectangular sides of the two coils provide large open access areas for one or more instruments during interventional procedures.

    摘要翻译： 用于介入MRI的RF正交检测线圈包括在轮廓中具有大致矩形形状的两个嵌套正交线圈，每个线圈提供用于正交检测的一个“信道”信号。 每个矩形线圈具有两个导体绕组和公共侧，其中沿着该侧的两个导体在与线圈的平面垂直的公共平面中分开以形成圆形开口。 两个单独的线圈被构造成使得它们的矩形导体绕组部分位于彼此垂直的平面中，但是它们的弓形导体绕组部分在同一平面中重合。 四个平行的导体围绕共享的圆形开口布置，而两个平行的导体形成每个单独线圈的矩形部分的三个侧面。 通过这种布置，圆形开口允许进入用于MR成像的主体部分，而两个线圈的正交矩形侧面之间的空间在介入过程期间为一个或多个仪器提供大的开放通路区域。

    Open structure breast coil and support arrangement for interventional MRI
    7.
    发明授权
    Open structure breast coil and support arrangement for interventional MRI 失效
    开放式结构乳房线圈和介入MRI支持装置

    公开(公告)号：US6163717A

    公开(公告)日：2000-12-19

    申请号：US198967

    申请日：1998-11-25

    申请人： Sunyu Su

    发明人： Sunyu Su

    IPC分类号： A61B5/055 ,  G01R33/32 ,  G01R33/34

    CPC分类号： G01R33/34046 ,  A61B5/055 ,  G01R33/3678

    摘要： A pair of RF quadrature detection coils are fitted in an open support structure that allows easy diagnostic access to all tissue areas of the human female breast when performing interventional MRI. The open structure dual coil arrangement comprises a flat base and a slightly "V"-shaped bi-planar upper section supported above the lower base section by eight narrow vertical legs. The upper bi-planar section includes two circular openings for accepting the breasts. Four of the support legs are equally spaced at 900 intervals around each breast opening and provide large side-open access areas to the breast tissues via the sides of the support structure. The "V"-shape of the upper portion of the coil support structure increases the gap clearance at both left and right sides of the support structure to further enhance access to the breasts. In a preferred embodiment, two complete MRI quadrature detection coils are supported by the structure and each of the vertical support legs house a pair of conductors forming part of a quadrature detection coil winding. The use of quadrature detection coils increases MRI signal detection efficiency and the open structural support arrangement allows increased accessibility to the breast tissues for efficient interventional MR imaging and easy cleaning after use.

    摘要翻译： 一对RF正交检测线圈装配在开放的支撑结构中，其允许在进行介入MRI时容易诊断进入人类女性乳房的所有组织区域。 开放结构双线圈装置包括平底座和通过八个窄的垂直腿支撑在下基座上方的略微“V”形的双平面上部。 上部双平面部分包括用于接受乳房的两个圆形开口。 四个支撑腿在每个胸部开口处以900个间隔相等间隔，并且通过支撑结构的侧面向乳房组织提供大的侧面开放进入区域。 线圈支撑结构的上部的“V”形增加了支撑结构的左侧和右侧的间隙，以进一步增强对乳房的通路。 在优选实施例中，两个完整的MRI正交检测线圈由该结构支撑，并且每个垂直支撑腿容纳形成正交检测线圈绕组的一部分的一对导体。 正交检测线圈的使用增加了MRI信号检测效率，并且开放的结构支持布置允许增加对乳腺组织的可访问性，用于有效的介入MR成像和使用后容易的清洁。

    Double-counter-rotational coil
    9.
    发明授权
    Double-counter-rotational coil 有权
    双反转线圈

    公开(公告)号：US06768303B1

    公开(公告)日：2004-07-27

    申请号：US10098268

    申请日：2002-03-15

    申请人： Sunyu Su ,  Mark Xueming Zou

    发明人： Sunyu Su ,  Mark Xueming Zou

    IPC分类号： G01V300

    CPC分类号： G01R33/365 ,  G01R33/34046

    摘要： A MRI RF coil includes a first solenoidal section, a second solenoidal section, and a third solenoidal section. The first section is between the second and third sections. The first section has a counter-rotational orientation with respect to the second and third sections.

    摘要翻译： MRI RF线圈包括第一螺线管部分，第二螺线管部分和第三螺线管部分。 第一部分在第二部分和第三部分之间。 第一部分相对于第二和第三部分具有反向旋转取向。