公开(公告)号：US20110312499A1

公开(公告)日：2011-12-22

申请号：US13124206

申请日：2009-10-15

申请人： J. Thomas Vaughan ,  Jinfeng Tian

发明人： J. Thomas Vaughan ,  Jinfeng Tian

IPC分类号： H01L39/02 ,  G01R33/60 ,  G01R33/28

CPC分类号： A61B5/055 ,  G01R33/34046 ,  G01R33/3453 ,  G01R33/3456 ,  G01R33/365 ,  G01R33/60

摘要： An RF coil adjacent an imaging region includes a plurality of conducting coil elements, with each conducting coil element including a proximal portion and a distal portion. The RF coil also includes a capacitance between the distal portions of the at least two conducting coil elements. A mutual coupling inductance between at least two conducting coil elements of the plurality of conducting coil elements is substantially cancelled by the capacitance between the distal portions of the at least two conducting coil elements.

摘要翻译： 与成像区域相邻的RF线圈包括多个导电线圈元件，每个导电线圈元件包括近端部分和远端部分。 RF线圈还包括在至少两个导电线圈元件的远端部分之间的电容。 在多个导电线圈元件的至少两个导电线圈元件之间的互耦合电感基本上被至少两个导电线圈元件的远端部分之间的电容抵消。

公开(公告)号：US07800368B2

公开(公告)日：2010-09-21

申请号：US11707560

申请日：2007-02-17

申请人： J. Thomas Vaughan ,  Pierre-Francois Van de Moortele ,  Lance DelaBarre ,  Christopher C. Olson ,  Heather Orser ,  Anand Gopinath ,  Kamil Ugurbil ,  Carl Snyder ,  Gregor Adiany ,  Can E. Akgun ,  Jinfeng Tian ,  John Strupp ,  Peter M. Andersen ,  Xiaoping Wu

发明人： J. Thomas Vaughan ,  Pierre-Francois Van de Moortele ,  Lance DelaBarre ,  Christopher C. Olson ,  Heather Orser ,  Anand Gopinath ,  Kamil Ugurbil ,  Carl Snyder ,  Gregor Adiany ,  Can E. Akgun ,  Jinfeng Tian ,  John Strupp ,  Peter M. Andersen ,  Xiaoping Wu

IPC分类号： G01V3/00

CPC分类号： G01R33/583 ,  G01R33/246 ,  G01R33/341 ,  G01R33/343 ,  G01R33/543 ,  G01R33/546 ,  G01R33/5612 ,  G01R33/5659

摘要： A magnetic resonance system is disclosed. The system includes a transceiver having a multichannel receiver and a multichannel transmitter, where each channel of the transmitter is configured for independent selection of frequency, phase, time, space, and magnitude, and each channel of the receiver is configured for independent selection of space, time, frequency, phase and gain. The system also includes a magnetic resonance coil having a plurality of current elements, with each element coupled in one to one relation with a channel of the receiver and a channel of the transmitter. The system further includes a processor coupled to the transceiver, such that the processor is configured to execute instructions to control a current in each element and to perform a non-linear algorithm to shim the coil.

摘要翻译： 公开了磁共振系统。 该系统包括具有多通道接收器和多通道发射器的收发器，其中发射器的每个通道被配置用于频率，相位，时间，空间和幅度的独立选择，并且接收器的每个通道被配置用于独立选择空间 ，时间，频率，相位和增益。 该系统还包括具有多个电流元件的磁共振线圈，每个元件与接收器的通道和发射器的通道以一对一的关系耦合。 该系统还包括耦合到收发器的处理器，使得处理器被配置为执行指令以控制每个元件中的电流并且执行非线性算法以使线圈振动。

公开(公告)号：US08380266B2

公开(公告)日：2013-02-19

申请号：US13124206

申请日：2009-10-15

申请人： J. Thomas Vaughan ,  Jinfeng Tian

发明人： J. Thomas Vaughan ,  Jinfeng Tian

IPC分类号： H01B12/00 ,  H01F6/00

CPC分类号： A61B5/055 ,  G01R33/34046 ,  G01R33/3453 ,  G01R33/3456 ,  G01R33/365 ,  G01R33/60

摘要： An RF coil adjacent an imaging region includes a plurality of conducting coil elements, with each conducting coil element including a proximal portion and a distal portion. The RF coil also includes a capacitance between the distal portions of the at least two conducting coil elements. A mutual coupling inductance between at least two conducting coil elements of the plurality of conducting coil elements is substantially cancelled by the capacitance between the distal portions of the at least two conducting coil elements.

摘要翻译： 与成像区域相邻的RF线圈包括多个导电线圈元件，每个导电线圈元件包括近端部分和远端部分。 RF线圈还包括在至少两个导电线圈元件的远端部分之间的电容。 多个导电线圈元件的至少两个导电线圈元件之间的互耦合电感基本上被至少两个导电线圈元件的远端部分之间的电容抵消。

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。

公开(公告)号：US08217653B2

公开(公告)日：2012-07-10

申请号：US12390193

申请日：2009-02-20

申请人： J. Thomas Vaughan

发明人： J. Thomas Vaughan

IPC分类号： G01V3/00 ,  A61B5/05

CPC分类号： G01R33/3415 ,  G01R33/3635 ,  G01R33/365 ,  G01R33/3664 ,  G01R33/5659

摘要： An RF coil system for magnetic resonance applications includes a multi-channel RF coil transceiver and a multi-channel RF coil. The RF coil system is structured for reconfiguration between a plurality of operational modes.

摘要翻译： 用于磁共振应用的RF线圈系统包括多通道RF线圈收发器和多通道RF线圈。 RF线圈系统被构造用于在多个操作模式之间重新配置。

公开(公告)号：US07633293B2

公开(公告)日：2009-12-15

申请号：US11800055

申请日：2007-05-03

申请人： Christopher C. Olson ,  J. Thomas Vaughan ,  Anand Gopinath

发明人： Christopher C. Olson ,  J. Thomas Vaughan ,  Anand Gopinath

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/246 ,  G01R33/288 ,  G01R33/34076 ,  G01R33/341 ,  G01R33/3415 ,  G01R33/3453 ,  G01R33/5659

摘要： Technology for controlling non-uniformity in the B1 field includes selecting the phase, magnitude, frequency, time, or spatial relationship among various elements of a multi-channel excitation coil in order to control the radio frequency (RF) power emanating from the coil antenna elements. Non-uniformity can be used to steer a constructively interfering B1 field node to spatially correlate with an anatomic region of interest. A convex (quadratically constrained quadratic problem) formulation of the B1 localization problem can be used to select parameters for exciting the coil. Localization can be used in simulated Finite Difference Time Domain B1 field human head distributions and human head phantom measurement.

摘要翻译： 用于控制B1场中不均匀性的技术包括选择多通道激励线圈的各种元件之间的相位，幅度，频率，时间或空间关系，以便控制从线圈天线发出的射频（RF）功率 元素。 可以使用不均匀性来引导建设性干扰的B1场节点与感兴趣的解剖区域空间相关。 B1定位问题的凸（二次约束二次问题）公式可用于选择激励线圈的参数。 本地化可用于模拟有限差分时域B1场人头分布和人头体模测量。

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。

公开(公告)号：US09568572B2

公开(公告)日：2017-02-14

申请号：US11429463

申请日：2006-05-05

申请人： J. Thomas Vaughan

发明人： J. Thomas Vaughan

IPC分类号： G01R33/345 ,  A61B5/055 ,  G01R33/36 ,  A61B5/05 ,  G01R33/34

CPC分类号： G01R33/3692 ,  A61B5/05 ,  G01R33/34007 ,  G01R33/345

摘要： This document discusses, among other things, a radio frequency magnetic coil is coupled to a wireless communication circuit. The wireless communication circuit allows control or monitoring of individual channels or other functions of a coil.

摘要翻译： 该文件尤其涉及射频电磁线圈耦合到无线通信电路。 无线通信电路允许控制或监视线圈的各个通道或其他功能。

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

IPC分类号： A61B5/055 ,  G01R33/34 ,  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。

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。