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公开(公告)号：US07446528B2
公开(公告)日：2008-11-04
申请号：US10525932
申请日：2003-08-29
CPC分类号： G01R33/34046
摘要： A radio frequency (RF) coil array is used in resonance imaging and/or analysis of a subject located within a cylindrical space in which a magnetic field is operatively applied in an axial direction (z). The coil array comprises a plurality of coil elements (10, 11, 12, 13) angled relative to each other about the axis of the cylindrical space, each coil element having a pair of main conductors extending generally parallel to the direction of the magnetic field and located on diametrically opposite sides of the cylindrical space, and a pair of connection conductors connected between respective ends of the main conductors. Each coil element has its maximum sensitivity near the centre of the cylindrical space, so that the subject under study is located in a region of maximum sensitivity.
摘要翻译： 射频（RF）线圈阵列用于位于其中沿轴向方向（z）可操作地施加磁场的圆柱形空间内的被摄体的共振成像和/或分析。 线圈阵列包括围绕圆柱形空间的轴线相对于彼此成角度的多个线圈元件（10,11,12,13），每个线圈元件具有大致平行于磁场方向延伸的一对主导体 并且位于圆柱形空间的径向相对侧上，并且连接在主导体的各个端部之间的一对连接导体。 每个线圈元件在圆柱形空间的中心附近具有最大灵敏度，使得被研究对象位于最大灵敏度的区域。
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公开(公告)号：US07348780B2
公开(公告)日：2008-03-25
申请号：US10822398
申请日：2004-04-12
申请人： Stuart Crozier , Ben Lawrence , Desmond Yau , Kurt Luescher , Wolfgang Udo Roffman , David Michael Doddrell
发明人： Stuart Crozier , Ben Lawrence , Desmond Yau , Kurt Luescher , Wolfgang Udo Roffman , David Michael Doddrell
IPC分类号： G01V3/00
CPC分类号： G01R33/34046
摘要： Asymmetric radio frequency (RF) coils for magnetic resonance applications are provided. Also provided are time harmonic methods for designing such coils as well as symmetric coils. In addition, methods for converting complex current density functions into discrete capacitive and inductive elements are provided.
摘要翻译： 提供了用于磁共振应用的非对称射频（RF）线圈。 还提供了用于设计这种线圈以及对称线圈的时间谐波方法。 另外，提供了将复合电流密度函数转换成离散的电容和电感元件的方法。
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公开(公告)号：US06720768B2
公开(公告)日：2004-04-13
申请号：US09947178
申请日：2001-09-05
申请人： Stuart Crozier , Ben Lawrence , Desmond Yau , Kurt Luescher , Wolfgang Udo Roffman , David Michael Doddrell
发明人： Stuart Crozier , Ben Lawrence , Desmond Yau , Kurt Luescher , Wolfgang Udo Roffman , David Michael Doddrell
IPC分类号： G01V300
CPC分类号： G01R33/34046
摘要： Asymmetric radio frequency (RF) coils for magnetic resonance applications are provided. Also provided are time harmonic methods for designing such coils as well as symmetric coils. In addition, methods for converting complex current density functions into discrete capacitive and inductive elements are provided.
摘要翻译： 提供了用于磁共振应用的非对称射频（RF）线圈。 还提供了用于设计这种线圈以及对称线圈的时间谐波方法。 另外，提供了将复合电流密度函数转换成离散的电容和电感元件的方法。
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公开(公告)号：US6118274A
公开(公告)日：2000-09-12
申请号：US127961
申请日：1998-08-03
CPC分类号： G01R33/34053 , G01R33/34076 , G01R33/3678 , G01R33/34092
摘要： An NMR probehead is proposed having a generally cylindrical casing extending along a probehead axis. The NMR probehead can be inserted into the room temperature bore of an NMR spectrometer magnet providing, in a measurement region, a homogeneous static magnetic field along the probehead axis. The NMR probehead comprises a cylindrical radio frequency (RF) resonator oriented along a resonator axis and generating essentially homogeneous RF magnetic fields transverse to the resonator axis. In accordance with the invention, the angle between the probehead axis and the resonator axis is different from 0.degree.. In this manner, the inclination of the resonator does not affect the useful RF magnetic field and the signal to noise ratio of the received NMR signal is independent of the inclination angle.
摘要翻译： 提出了具有沿着探头轴线延伸的大致圆柱形壳体的NMR探针头。 NMR探针头可插入NMR光谱仪磁体的室温孔中，在测量区域中提供沿着探头轴线的均匀静磁场。 NMR探针头包括沿着谐振器轴定向的圆柱形射频（RF）谐振器，并且产生横向于谐振器轴线的基本均匀的RF磁场。 根据本发明，探头轴与谐振器轴之间的角度与0°不同。 以这种方式，谐振器的倾斜度不影响有用的RF磁场，并且接收的NMR信号的信噪比与倾斜角无关。
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公开(公告)号：US20060119358A1
公开(公告)日：2006-06-08
申请号：US10525932
申请日：2003-08-29
IPC分类号： G01V3/00
CPC分类号： G01R33/34046
摘要： A radio frequency (RF) coil array is used in resonance imaging and/or analysis of a subject located within a cylindrical space in which a magnetic field is operatively applied in an axial direction (z). The coil array comprises a plurality of coil elements (10, 11, 12, 13) angled relative to each other about the axis of the cylindrical space, each coil element having a pair of main conductors extending generally parallel to the direction of the magnetic field and located on diametrically opposite sides of the cylindrical space, and a pair of connection conductors connected between respective ends of the main conductors. Each coil element has its maximum sensitivity near the centre of the cylindrical space, so that the subject under study is located in a region of maximum sensitivity.
摘要翻译： 射频（RF）线圈阵列用于位于其中沿轴向方向（z）可操作地施加磁场的圆柱形空间内的被摄体的共振成像和/或分析。 线圈阵列包括围绕圆柱形空间的轴线相对于彼此成角度的多个线圈元件（10,11,12,13），每个线圈元件具有大致平行于磁场方向延伸的一对主导体 并且位于圆柱形空间的径向相对侧上，并且连接在主导体的各个端部之间的一对连接导体。 每个线圈元件在圆柱形空间的中心附近具有最大灵敏度，使得被研究对象位于最大灵敏度的区域。
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