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公开(公告)号：US07893693B2
公开(公告)日：2011-02-22
申请号：US11415366
申请日：2006-05-01
申请人： J. Thomas Vaughan , Gregor Adriany , Kamil Ugurbil
发明人： J. Thomas Vaughan , Gregor Adriany , Kamil Ugurbil
IPC分类号： G01V3/00
CPC分类号： G01R33/34046 , G01R33/3453
摘要： An apparatus comprises a radio frequency magnetic field unit to generate a desired magnetic field. In one embodiment, the radio frequency magnetic field unit includes a first aperture that is substantially unobstructed and a second aperture contiguous to the first aperture. In an alternative embodiment, the radio frequency magnetic field unit includes a first side aperture, a second side aperture and one or more end apertures. In one embodiment of a method, a current element is removed from a radio frequency magnetic field unit to form a magnetic field unit having an aperture. In an alternative embodiment, two current elements located opposite from one another in a radio frequency magnetic field unit are removed to form a magnetic filed unit having a first side aperture and a second side aperture.
摘要翻译： 一种装置包括用于产生期望磁场的射频磁场单元。 在一个实施例中，射频磁场单元包括基本无障碍的第一孔和与第一孔邻接的第二孔。 在替代实施例中，射频磁场单元包括第一侧孔，第二侧孔和一个或多个端孔。 在一种方法的一个实施例中，从射频磁场单元移除电流元件以形成具有孔径的磁场单元。 在替代实施例中，移除在射频磁场单元中彼此相对定位的两个电流元件，以形成具有第一侧孔和第二侧孔的磁场单元。
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公开(公告)号：US07710117B2
公开(公告)日：2010-05-04
申请号：US11858707
申请日：2007-09-20
申请人： J. Thomas Vaughan , Gregor Adriany , Carl Snyder , Can E. Akgun , Jinfeng Tian , Kamil Ugurbil , Pierre-Francois Van de Moortele , Steen Moeller
发明人： J. Thomas Vaughan , Gregor Adriany , Carl Snyder , Can E. Akgun , Jinfeng Tian , Kamil Ugurbil , Pierre-Francois Van de Moortele , Steen Moeller
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/34046
摘要： A current unit having two or more current paths allows control of magnitude, phase, time, frequency and position of each of element in a radio frequency coil. For each current element, the current can be adjusted as to a phase angle, frequency and magnitude. Multiple current paths of a current unit can be used for targeting multiple spatial domains or strategic combinations of the fields generated/detected by combination of elements for targeting a single domain in magnitude, phase, time, space and frequency.
摘要翻译： 具有两个或多个电流路径的电流单元允许控制射频线圈中每个元件的幅度，相位，时间，频率和位置。 对于每个电流元件，电流可以调整为相位角，频率和幅度。 可以使用当前单元的多个电流路径来瞄准多个空间域或通过用于在幅度，相位，时间，空间和频率上针对单个域的元件组合生成/检测的场的策略组合。
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公开(公告)号：US07514926B2
公开(公告)日：2009-04-07
申请号：US11599177
申请日：2006-11-14
申请人： Gregor Adriany , Pierre-Francois Van de Moortele , Johannes Ritter , William Voje , J. Thomas Vaughan , Kamil Ugurbil
发明人： Gregor Adriany , Pierre-Francois Van de Moortele , Johannes Ritter , William Voje , J. Thomas Vaughan , Kamil Ugurbil
IPC分类号： G01V3/00
CPC分类号： G01R33/34046 , G01R33/34084 , G01R33/3415 , G01R33/3456
摘要： This document discusses, among other things, a system and method for a coil having a plurality of resonant elements and an adjustable frame. A position of at least one resonant element can be adjusted relative to at least one other resonant element. A variable impedance is coupled to adjacent resonant elements and the impedance varies as a function of a separation distance. Cables are coupled to each resonant element and are gathered at a junction in a particular manner.
摘要翻译： 本文件尤其涉及具有多个谐振元件和可调节框架的线圈的系统和方法。 可以相对于至少一个其它谐振元件调节至少一个谐振元件的位置。 可变阻抗耦合到相邻的谐振元件，并且阻抗作为分离距离的函数而变化。 电缆耦合到每个谐振元件并以特定的方式聚集在结点处。
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公开(公告)号：US06969992B2
公开(公告)日：2005-11-29
申请号：US10957870
申请日：2004-10-04
IPC分类号： G01R33/32 , G01R33/34 , G01R33/3415 , G01V3/00 , G21K20060101
CPC分类号： G01R33/34046 , G01R33/246 , G01R33/3415
摘要： An excitation and detection circuit having individually controllable elements for use with a multi-element radio frequency coil. Characteristics of the driving signal, including, for example, the phase, amplitude, frequency and timing, from each element of the circuit is separately controllable using small signals. Negative feedback for the driving signal associated with each coil element is derived from a receiver coupled to that coil element.
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公开(公告)号：US06958607B2
公开(公告)日：2005-10-25
申请号：US10637261
申请日：2003-08-08
申请人： J. Thomas Vaughan , Gregor Adriany , Kamil Ugurbil
发明人： J. Thomas Vaughan , Gregor Adriany , Kamil Ugurbil
CPC分类号： G01R33/34046 , G01R33/3453
摘要： An apparatus comprises a radio frequency magnetic field unit to generate a desired magnetic field. In one embodiment, the radio frequency magnetic field unit includes a first aperture that is substantially unobstructed and a second aperture contiguous to the first aperture. In an alternative embodiment, the radio frequency magnetic field unit includes a first side aperture, a second side aperture and one or more end apertures. In one embodiment of a method, a current element is removed from a radio frequency magnetic field unit to form a magnetic field unit having an aperture. In an alternative embodiment, two current elements located opposite from one another in a radio frequency magnetic field unit are removed to form a magnetic filed unit having a first side aperture and a second side aperture.
摘要翻译： 一种装置包括用于产生期望磁场的射频磁场单元。 在一个实施例中，射频磁场单元包括基本无障碍的第一孔和与第一孔邻接的第二孔。 在替代实施例中，射频磁场单元包括第一侧孔，第二侧孔和一个或多个端孔。 在一种方法的一个实施例中，从射频磁场单元移除电流元件以形成具有孔径的磁场单元。 在替代实施例中，移除在射频磁场单元中彼此相对定位的两个电流元件，以形成具有第一侧孔和第二侧孔的磁场单元。
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公开(公告)号：US06788056B2
公开(公告)日：2004-09-07
申请号：US09919479
申请日：2001-07-31
申请人： J. Thomas Vaughan , Gregor Adriany , Kamil Ugurbil
发明人： J. Thomas Vaughan , Gregor Adriany , Kamil Ugurbil
IPC分类号： G01V300
CPC分类号： G01R33/34046 , G01R33/3453
摘要： An apparatus comprises a radio frequency magnetic field unit to generate a desired magnetic field. In one embodiment, the radio frequency magnetic field unit includes a first aperture that is substantially unobstructed and a second aperture contiguous to the first aperture. In an alternative embodiment, the radio frequency magnetic field unit includes a first side aperture, a second side aperture and one or more end apertures. In one embodiment of a method, a current element is removed from a radio frequency magnetic field unit to form a magnetic field unit having an aperture. In an alternative embodiment, two current elements located opposite from one another in a radio frequency magnetic field unit are removed to form a magnetic filed unit having a first side aperture and a second side aperture.
摘要翻译： 一种装置包括用于产生期望磁场的射频磁场单元。 在一个实施例中，射频磁场单元包括基本无障碍的第一孔和与第一孔邻接的第二孔。 在替代实施例中，射频磁场单元包括第一侧孔，第二侧孔和一个或多个端孔。 在一种方法的一个实施例中，从射频磁场单元移除电流元件以形成具有孔径的磁场单元。 在替代实施例中，移除在射频磁场单元中彼此相对定位的两个电流元件，以形成具有第一侧孔和第二侧孔的磁场单元。
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公开(公告)号：US20060255806A1
公开(公告)日：2006-11-16
申请号：US11415366
申请日：2006-05-01
申请人： J. Vaughan , Gregor Adriany , Kamil Ugurbil
发明人： J. Vaughan , Gregor Adriany , Kamil Ugurbil
IPC分类号： G01V3/00
CPC分类号： G01R33/34046 , G01R33/3453
摘要： An apparatus comprises a radio frequency magnetic field unit to generate a desired magnetic field. In one embodiment, the radio frequency magnetic field unit includes a first aperture that is substantially unobstructed and a second aperture contiguous to the first aperture. In an alternative embodiment, the radio frequency magnetic field unit includes a first side aperture, a second side aperture and one or more end apertures. In one embodiment of a method, a current element is removed from a radio frequency magnetic field unit to form a magnetic field unit having an aperture. In an alternative embodiment, two current elements located opposite from one another in a radio frequency magnetic field unit are removed to form a magnetic filed unit having a first side aperture and a second side aperture.
摘要翻译： 一种装置包括用于产生期望磁场的射频磁场单元。 在一个实施例中，射频磁场单元包括基本无障碍的第一孔和与第一孔邻接的第二孔。 在替代实施例中，射频磁场单元包括第一侧孔，第二侧孔和一个或多个端孔。 在一种方法的一个实施例中，从射频磁场单元移除电流元件以形成具有孔径的磁场单元。 在替代实施例中，移除在射频磁场单元中彼此相对定位的两个电流元件，以形成具有第一侧孔和第二侧孔的磁场单元。
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公开(公告)号：US20050116715A1
公开(公告)日：2005-06-02
申请号：US10957870
申请日：2004-10-04
申请人： J. Vaughan , Gregor Adriany , Kamil Ugurbil , John Strupp , Peter Andersen
发明人： J. Vaughan , Gregor Adriany , Kamil Ugurbil , John Strupp , Peter Andersen
IPC分类号： G01R33/32 , G01R33/34 , G01R33/3415 , G01V3/00 , G21K20060101
CPC分类号： G01R33/34046 , G01R33/246 , G01R33/3415
摘要： An excitation and detection circuit having individually controllable elements for use with a multi-element radio frequency coil. Characteristics of the driving signal, including, for example, the phase, amplitude, frequency and timing, from each element of the circuit is separately controllable using small signals. Negative feedback for the driving signal associated with each coil element is derived from a receiver coupled to that coil element.
摘要翻译： 激励和检测电路具有用于与多元件射频线圈一起使用的独立可控元件。 来自电路的每个元件的驱动信号的特性，包括例如相位，幅度，频率和定时的特性可以使用小信号单独控制。 与每个线圈元件相关联的驱动信号的负反馈从耦合到该线圈元件的接收器导出。
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公开(公告)号：US07598739B2
公开(公告)日：2009-10-06
申请号：US10420541
申请日：2003-04-21
IPC分类号： G01V3/00
CPC分类号： G01R33/34046 , G01R33/345 , G01R33/3628 , G01R33/3635
摘要： A plurality of linear current elements are configured about a specimen to be imaged. A current in each current element is controlled independent of a current in other current elements to select a gradient and to provide radio frequency shimming. Each current element is driven by a separate channel of a transmitter and connected to a separate channel of a multi-channel receiver. The impedance, and therefore, the current, in each current element is controlled mechanically or electrically.
摘要翻译： 多个线性电流元件围绕待成像的样本配置。 每个电流元件中的电流独立于其它电流元件中的电流被控制以选择梯度并提供射频匀场。 每个电流元件由发射器的单独信道驱动，并连接到多通道接收器的单独信道。 每个电流元件中的阻抗以及因此的电流被机械或电气控制。
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公开(公告)号：US20080084210A1
公开(公告)日：2008-04-10
申请号：US11858707
申请日：2007-09-20
申请人： J. Vaughan , Gregor Adriany , Carl Snyder , Can Akgun , Jinfeng Tian , Kamil Ugurbil , Pierre-Francois Van de Moortele , Steen Moeller
发明人： J. Vaughan , Gregor Adriany , Carl Snyder , Can Akgun , Jinfeng Tian , Kamil Ugurbil , Pierre-Francois Van de Moortele , Steen Moeller
IPC分类号： G01R33/28
CPC分类号： G01R33/3415 , G01R33/34046
摘要： A current unit having two or more current paths allows control of magnitude, phase, time, frequency and position of each of element in a radio frequency coil. For each current element, the current can be adjusted as to a phase angle, frequency and magnitude. Multiple current paths of a current unit can be used for targeting multiple spatial domains or strategic combinations of the fields generated/detected by combination of elements for targeting a single domain in magnitude, phase, time, space and frequency.
摘要翻译： 具有两个或多个电流路径的电流单元允许控制射频线圈中每个元件的幅度，相位，时间，频率和位置。 对于每个电流元件，电流可以调整为相位角，频率和幅度。 可以使用当前单元的多个电流路径来瞄准多个空间域或通过用于在幅度，相位，时间，空间和频率上针对单个域的元件组合生成/检测的场的策略组合。
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