公开(公告)号：US07285957B2

公开(公告)日：2007-10-23

申请号：US11623386

申请日：2007-01-16

申请人： Eddy B. Boskamp ,  Armen Kocharian ,  LeRoy Blawat

发明人： Eddy B. Boskamp ,  Armen Kocharian ,  LeRoy Blawat

IPC分类号： G01V3/00

CPC分类号： G01R33/34046

摘要： An RF coil assembly is presented that incorporates balun networks to eliminate standing waves from cables used to apply a voltage to multiple drive ports of the coil. Each drive port is driven by an applied voltage that is shifted 90 degrees in the tangential direction. Further, all drive ports are located on one end-ring of the coil, e.g. the superior end-ring. The inequality of the efficiency of the drive ports is reduced such that a substantially circular polarization in the volume of the coil is maintained. The present invention reduces asymmetrical loading by a patient as a result of patient asymmetry and patient contact with the opposite end-ring of the coil that normally negatively affects circular polarization and conventional coil configurations.

公开(公告)号：US07173425B2

公开(公告)日：2007-02-06

申请号：US11275685

申请日：2006-01-24

申请人： Eddy B. Boskamp ,  Armen Kocharian ,  Leroy Blawat

发明人： Eddy B. Boskamp ,  Armen Kocharian ,  Leroy Blawat

IPC分类号： G01V3/00

CPC分类号： G01R33/34046

摘要： An RF coil assembly is presented that incorporates balun networks to eliminate standing waves from cables used to apply a voltage to multiple drive ports of the coil. Each drive port is driven by an applied voltage that is shifted 90 degrees in the tangential direction. Further, all drive ports are located on one end-ring of the coil, e.g. the superior end-ring. The inequality of the efficiency of the drive ports is reduced such that a substantially circular polarization in the volume of the coil is maintained. The present invention reduces asymmetrical loading by a patient as a result of patient asymmetry and patient contact with the opposite end-ring of the coil that normally negatively affects circular polarization and conventional coil configurations.

摘要翻译： 提出了一种RF线圈组件，其包括平衡 - 不平衡变换器网络，以消除用于将电压施加到线圈的多个驱动端口的电缆的驻波。 每个驱动端口由沿切线方向偏移90度的施加电压驱动。 此外，所有驱动端口位于线圈的一个端环上，例如， 上端端环。 减小驱动端口的效率的不等式，使得维持线圈体积中的基本圆形极化。 本发明由于患者不对称和患者与线圈的相对端环接触而导致患者的不对称负荷，其通常负面地影响圆偏振和常规线圈构型。

公开(公告)号：US07088100B2

公开(公告)日：2006-08-08

申请号：US10708567

申请日：2004-03-11

申请人： Eddy B. Boskamp ,  Armen Kocharian ,  LeRoy Blawat

发明人： Eddy B. Boskamp ,  Armen Kocharian ,  LeRoy Blawat

IPC分类号： G01V3/00

CPC分类号： G01R33/34046

摘要： An RF coil assembly is presented that incorporates balun networks to eliminate standing waves from cables used to apply a voltage to multiple drive ports of the coil. Each drive port is driven by an applied voltage that is shifted 90 degrees in the tangential direction. Further, all drive ports are located on one end-ring of the coil, e.g. the superior end-ring. The inequality of the efficiency of the drive ports is reduced such that a substantially circular polarization in the volume of the coil is maintained. The present invention reduces asymmetrical loading by a patient as a result of patient asymmetry and patient contact with the opposite end-ring of the coil that normally negatively affects circular polarization and conventional coil configurations.

摘要翻译： 提出了一种RF线圈组件，其包括平衡 - 不平衡变换器网络，以消除用于将电压施加到线圈的多个驱动端口的电缆的驻波。 每个驱动端口由沿切线方向偏移90度的施加电压驱动。 此外，所有驱动端口位于线圈的一个端环上，例如， 上端端环。 减小驱动端口的效率的不等式，使得维持线圈体积中的基本圆形极化。 本发明由于患者不对称和患者与线圈的相对端环接触而导致患者的不对称负荷，其通常负面地影响圆偏振和常规线圈构造。

公开(公告)号：US20070114999A1

公开(公告)日：2007-05-24

申请号：US11623386

申请日：2007-01-16

申请人： Eddy Boskamp ,  Armen Kocharian ,  LeRoy Blawat

发明人： Eddy Boskamp ,  Armen Kocharian ,  LeRoy Blawat

IPC分类号： G01V3/00

CPC分类号： G01R33/34046

摘要： An RF coil assembly is presented that incorporates balun networks to eliminate standing waves from cables used to apply a voltage to multiple drive ports of the coil. Each drive port is driven by an applied voltage that is shifted 90 degrees in the tangential direction. Further, all drive ports are located on one end-ring of the coil, e.g. the superior end-ring. The inequality of the efficiency of the drive ports is reduced such that a substantially circular polarization in the volume of the coil is maintained. The present invention reduces asymmetrical loading by a patient as a result of patient asymmetry and patient contact with the opposite end-ring of the coil that normally negatively affects circular polarization and conventional coil configurations.

摘要翻译： 提出了一种RF线圈组件，其包括平衡 - 不平衡变换器网络，以消除用于将电压施加到线圈的多个驱动端口的电缆的驻波。 每个驱动端口由沿切线方向偏移90度的施加电压驱动。 此外，所有驱动端口位于线圈的一个端环上，例如， 上端端环。 减小驱动端口的效率的不等式，使得维持线圈体积中的基本圆形极化。 本发明由于患者不对称和患者与线圈的相对端环接触而导致患者的不对称负荷，其通常负面地影响圆偏振和常规线圈构型。

公开(公告)号：US20060109005A1

公开(公告)日：2006-05-25

申请号：US11275685

申请日：2006-01-24

申请人： Eddy Boskamp ,  Armen Kocharian ,  LeRoy Blawat

发明人： Eddy Boskamp ,  Armen Kocharian ,  LeRoy Blawat

IPC分类号： G01V3/00

CPC分类号： G01R33/34046

摘要： An RF coil assembly is presented that incorporates balun networks to eliminate standing waves from cables used to apply a voltage to multiple drive ports of the coil. Each drive port is driven by an applied voltage that is shifted 90 degrees in the tangential direction. Further, all drive ports are located on one end-ring of the coil, e.g. the superior end-ring. The inequality of the efficiency of the drive ports is reduced such that a substantially circular polarization in the volume of the coil is maintained. The present invention reduces asymmetrical loading by a patient as a result of patient asymmetry and patient contact with the opposite end-ring of the coil that normally negatively affects circular polarization and conventional coil configurations.

摘要翻译： 提出了一种RF线圈组件，其包括平衡 - 不平衡变换器网络，以消除用于将电压施加到线圈的多个驱动端口的电缆的驻波。 每个驱动端口由沿切线方向偏移90度的施加电压驱动。 此外，所有驱动端口位于线圈的一个端环上，例如， 上端端环。 减小驱动端口的效率的不等式，使得维持线圈体积中的基本圆形极化。 本发明由于患者不对称和患者与线圈的相对端环接触而导致患者的不对称负荷，其通常负面地影响圆偏振和常规线圈构型。

公开(公告)号：US20050200358A1

公开(公告)日：2005-09-15

申请号：US10708567

申请日：2004-03-11

申请人： Eddy Boskamp ,  Armen Kocharian ,  LeRoy Blawat

发明人： Eddy Boskamp ,  Armen Kocharian ,  LeRoy Blawat

IPC分类号： G01V3/00

CPC分类号： G01R33/34046

摘要： An RF coil assembly is presented that incorporates balun networks to eliminate standing waves from cables used to apply a voltage to multiple drive ports of the coil. Each drive port is driven by an applied voltage that is shifted 90 degrees in the tangential direction. Further, all drive ports are located on one end-ring of the coil, e.g. the superior end-ring. The inequality of the efficiency of the drive ports is reduced such that a substantially circular polarization in the volume of the coil is maintained. The present invention reduces asymmetrical loading by a patient as a result of patient asymmetry and patient contact with the opposite end-ring of the coil that normally negatively affects circular polarization and conventional coil configurations.

摘要翻译： 提出了一种RF线圈组件，其包括平衡 - 不平衡变换器网络，以消除用于将电压施加到线圈的多个驱动端口的电缆的驻波。 每个驱动端口由沿切线方向偏移90度的施加电压驱动。 此外，所有驱动端口位于线圈的一个端环上，例如， 上端端环。 减小驱动端口的效率的不等式，使得维持线圈体积中的基本圆形极化。 本发明由于患者不对称和患者与线圈的相对端环接触而导致患者的不对称负荷，其通常负面地影响圆偏振和常规线圈构型。