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1. 发明授权

US07193417B2 Bi-planar coil assemblies for producing specified magnetic fields 有权
标题翻译：用于产生特定磁场的双平面线圈组件
公开(公告)号：US07193417B2
公开(公告)日：2007-03-20
申请号：US10988771
申请日：2004-11-15
申请人： Lawrence Kennedy Forbes , Stuart Crozier
发明人： Lawrence Kennedy Forbes , Stuart Crozier
IPC分类号： G01V3/00
CPC分类号： G01R33/3806
摘要： Bi-planar coil assemblies are disclosed which have DSV's whose centers are offset by distances D from the origins of x,y,z-coordinate systems, where said origins of x,y,z-coordinate systems are coincident with the geometric centers of the coils. The distances D can be of the order of 10-20 centimeters or more. The bi-planar coil assemblies can be used in MRI applications to reduce the feeling of claustrophobia experienced by some subjects. The assemblies also can facilitate the imaging of various joints, including the wrist, elbow, ankle, or knee.
摘要翻译：公开了具有DSV的双平面线圈组件，其中心由x，y，z坐标系的起点偏移距离D，其中x，y，z坐标系的起点与线圈距离D可以是10-20厘米或更大的数量级。双平面线圈组件可用于MRI应用中以减少一些受试者经历的幽闭恐惧感。组件还可以促进包括手腕，肘部，脚踝或膝盖在内的各种关节的成像。

2. 发明授权

US06377148B1 Asymmetric zonal shim coils for magnetic resonance 有权
标题翻译：用于磁共振的非对称带状垫片线圈
公开(公告)号：US06377148B1
公开(公告)日：2002-04-23
申请号：US09941181
申请日：2001-08-27
申请人： Lawrence Kennedy Forbes , Stuart Crozier , David Michael Doddrell
发明人： Lawrence Kennedy Forbes , Stuart Crozier , David Michael Doddrell
IPC分类号： G01V300
CPC分类号： G01R33/3875
摘要： Asymmetric zonal shim coils and shim sets for magnetic resonance applications are provided. Also provided are Fourier-series based methods for designing such coils as well as symmetric coils.
摘要翻译：提供了用于磁共振应用的非对称带状垫片线圈和垫片组。还提供了用于设计这种线圈以及对称线圈的基于傅里叶级数的方法。

3. 发明授权

US06664879B2 Asymmetric tesseral shim coils for magnetic resonance 有权
标题翻译：用于磁共振的非对称衬垫垫片
公开(公告)号：US06664879B2
公开(公告)日：2003-12-16
申请号：US10234971
申请日：2002-09-04
申请人： Lawrence Kennedy Forbes , Stuart Crozier
发明人： Lawrence Kennedy Forbes , Stuart Crozier
IPC分类号： H01F700
CPC分类号： G01R33/3875
摘要： Asymmetric tesseral coils and sets for magnetic resonance applications are provided. Also provided are methods for designing such coils, as well as coils generating arbitrary field profiles. In certain embodiments, the coils are rigorously constrained to have finite dimensions.
摘要翻译：提供了不对称的振动线圈和用于磁共振应用的组。还提供了用于设计这种线圈的方法以及产生任意场分布的线圈。在某些实施例中，线圈被严格地限制为具有有限的尺寸。

4. 发明授权

US08390287B2 Coil decoupling 有权
标题翻译：线圈去耦
公开(公告)号：US08390287B2
公开(公告)日：2013-03-05
申请号：US12593237
申请日：2008-03-26
申请人： Stuart Crozier , Bing Keong Li , Ewald Weber
发明人： Stuart Crozier , Bing Keong Li , Ewald Weber
IPC分类号： G01V3/00
CPC分类号： G01R33/34046 , A61B5/055 , G01R33/34076 , G01R33/365 , G01R33/5611
摘要： A Magnetic Resonance Imaging (MRI) phased array head coil (10) comprises an array of coils (1, 2, 3, 4) a decoupling circuit (7) and a decoupling base (14). Counter wound inductors from adjoining coils (1, 2, 3, 4) in the decoupling circuit (7) are interlaced to achieve mutual decoupling between adjoining coils. Each separate coil (1, 2, 3, 4) includes a pair of spaced parallel main conductors (12) located on opposite sides of a cylindrical space (5) enclosed by the coils (1, 2, 3, 4). The decoupling base (14) comprises two meandering conductor bases (8, 9) which are interlaced. Orthogonal main conductors (12) of the coil (1, 2, 3, 4) share a common conductor base (8, 9). The multiple crossings of the paths of the conductor bases (8, 9) reduces mutual coupling effects.
摘要翻译：磁共振成像（MRI）相控阵列头线圈（10）包括线圈（1,2,3,4）阵列，去耦电路（7）和去耦基座（14）。在去耦电路（7）中来自相邻线圈（1,2,3,4）的反绕绕电感器交织以实现相邻线圈之间的相互去耦。每个分离的线圈（1,2,3,4）包括位于由线圈（1,2,3,4）包围的圆柱形空间（5）的相对侧上的一对隔开的平行主导体（12）。去耦基座（14）包括两个交织的曲折导体基座（8,9）。线圈（1,2,3,4）的正交主导体（12）共用公共导体基座（8,9）。导体基座（8,9）的路径的多个交叉点减少了相互耦合效应。

5. 发明申请

US20100079144A1 MAGNETS FOR USE IN MAGNETIC RESONANCE IMAGING 有权
标题翻译：用于磁共振成像的磁铁
公开(公告)号：US20100079144A1
公开(公告)日：2010-04-01
申请号：US12447070
申请日：2007-10-26
申请人： Stuart Crozier , Huawei Zhao , Feng Liu
发明人： Stuart Crozier , Huawei Zhao , Feng Liu
IPC分类号： G01R33/24
CPC分类号： G01R33/3815 , G01R33/421
摘要： A magnetic resonance system uses a shielded superconducting magnet to produce a dsv useful for specialist imaging in an overall short magnet system at field strengths 1.5 Tesla and above. The magnet includes at least a first central coil C1, which has a length of at least 25% of the overall length of the magnet, and is used in concert with a series of symmetric primary coils, at least one set of which carry current in a direction opposite to that of the central coil. Force balancing is advantageously used in the design of the coils. The primary coils are shielded by at least one shielding coil, which carries current in a direction opposite to the majority of the primary coils. The magnet resonance system can be used for orthopedic imaging.
摘要翻译：磁共振系统使用屏蔽超导磁体产生一个dsv，用于整个短磁体系统中的专家成像，场强为1.5特斯拉及以上。该磁体包括至少一个第一中心线圈C1，该中心线圈C1的长度至少为磁铁整体长度的25％，并与一系列对称的初级线圈一致使用，至少一组载体电流与中心线圈相反的方向。力平衡有利地用于线圈的设计中。初级线圈由至少一个屏蔽线圈屏蔽，该屏蔽线圈沿与大部分初级线圈相反的方向承载电流。磁共振系统可用于矫形成像。

6. 发明授权

US07446528B2 Coil array for magnetic resonance imaging 失效
标题翻译：用于磁共振成像的线圈阵列
公开(公告)号：US07446528B2
公开(公告)日：2008-11-04
申请号：US10525932
申请日：2003-08-29
申请人： David Michael Doddrell , Stuart Crozier , Kurt Luescher , Wolfgang Udo Roffman
发明人： David Michael Doddrell , Stuart Crozier , Kurt Luescher , Wolfgang Udo Roffman
IPC分类号： G01V3/00 , A61B5/055
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。

7. 发明授权

US6140900A Assymetric superconducting magnets for magnetic resonance imaging 有权
标题翻译：用于磁共振成像的非对称超导磁体
公开(公告)号：US6140900A
公开(公告)日：2000-10-31
申请号：US421035
申请日：1999-10-20
申请人： Stuart Crozier , David M. Doddrell , Huawei Zhao
发明人： Stuart Crozier , David M. Doddrell , Huawei Zhao
IPC分类号： G01R33/38 , G01R33/3815 , G01V3/00 , H01F5/00
CPC分类号： G01R33/3815 , G01R33/3806
摘要： Asymmetric, compact superconducting magnets for magnetic resonance imaging are provided. The magnets have a homogeneous region (the "dsv") which can be located close to one end of the magnet so as to reduce the sensation of claustrophobia experienced by patients undergoing MRI procedures. The magnets can be designed using a hybrid process in which current density analysis is performed to obtain an initial coil configuration which is then refined using non-linear optimization techniques to obtain a final coil configuration. The hybrid method can incorporate various constraints, including, the location and size of the dsv, the uniformity and strength of the B.sub.0 field, stray field strengths outside of the superconducting magnet, and field strengths within the magnet's coils. The hybrid technique can also be used to design compact symmetric superconducting magnets.
摘要翻译：提供用于磁共振成像的非对称紧凑型超导磁体。磁体具有均匀的区域（“dsv”），其可以位于靠近磁体的一端的位置，以便减少经历MRI程序的患者经历的幽闭恐惧症的感觉。可以使用混合过程来设计磁体，其中进行电流密度分析以获得初始线圈配置，然后使用非线性优化技术来精炼以获得最终的线圈配置。混合方法可以包括各种约束，包括dsv的位置和尺寸，B0场的均匀性和强度，超导磁体外部的杂散场强以及磁体线圈内的场强。混合技术也可用于设计紧凑的对称超导磁体。

8. 发明授权

US6118274A Radio-frequency coil for magnetic resonance imaging and spectroscopy 有权
标题翻译：用于磁共振成像和光谱的射频线圈
公开(公告)号：US6118274A
公开(公告)日：2000-09-12
申请号：US127961
申请日：1998-08-03
申请人： Wolfgang Udo Roffmann , Kurt Luescher , Stuart Crozier , David Michael Doddrell
发明人： Wolfgang Udo Roffmann , Kurt Luescher , Stuart Crozier , David Michael Doddrell
IPC分类号： G01R33/34 , G01V3/00
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。

9. 发明申请

US20110210735A1 MRI APPARATUS AND METHOD WITH MOVING FIELD COMPONENT 有权
标题翻译： MRI装置和移动场分量的方法
公开(公告)号：US20110210735A1
公开(公告)日：2011-09-01
申请号：US13000312
申请日：2009-06-19
申请人： Adnan Trakic , Ewald Weber , Bing Keong Li , Stephen James Wilson , Wang Hua , Feng Liu , Stuart Crozier
发明人： Adnan Trakic , Ewald Weber , Bing Keong Li , Stephen James Wilson , Wang Hua , Feng Liu , Stuart Crozier
IPC分类号： G01R33/48
CPC分类号： G01R33/5659 , G01R33/34007 , G01R33/3635 , G01R33/422 , G01R33/446 , G01R33/5611 , G01R33/5612
摘要： Apparatus for use in a magnetic resonance imaging system, the imaging system generating a magnetic imaging field in an imaging region (5), the apparatus including at least one coil for at least one of transmitting, receiving or transceiving an electromagnetic field, a field component (4) (such as a coil or a shield) and a drive (6) coupled to the field component for moving the field component (4) relative to the imaging region (5) to thereby modify the electromagnetic field during imaging process. The same concept can also be applied to nuclear imaging or nuclear spectroscopy apparatus.
摘要翻译：一种在磁共振成像系统中使用的装置，所述成像系统在成像区域（5）中产生磁成像场，所述装置包括至少一个用于发射，接收或收发电磁场的线圈，场分量（4）（例如线圈或屏蔽）和耦合到场分量的驱动器（6），用于相对于成像区域（5）移动场分量（4），从而在成像过程期间修改电磁场。同样的概念也可以应用于核成像或核光谱仪器。

10. 发明申请

US20080125666A1 Medical Monitoring System 审中-公开
标题翻译：医疗监控系统
公开(公告)号：US20080125666A1
公开(公告)日：2008-05-29
申请号：US11662800
申请日：2005-06-10
申请人： Stuart Crozier , Stephen Wilson , Hang Ding
发明人： Stuart Crozier , Stephen Wilson , Hang Ding
IPC分类号： A61B5/0402
CPC分类号： G06K9/00496 , A61B5/044 , A61B5/0452 , A61B5/0464
摘要： Biological data, such as human heart rate data, is acquired and processed in a non-linear manner to facilitate an assessment of the physiological state of the subject, and/or to assist in predicting incipient disorders or instability. Determinism, laminarity and recurrence measures are derived for a rolling sample of a time series of said data. The recurrence measure can be the Euclidean threshold (εthresh) at a given recurrence rate. A representation, such a colour coded matrix or multi-dimensional vector, is formed from a combination of the derived determinism, laminarity and recurrence measures. The representation can then be analysed to detect indicators of physiological instability, such as arrhythmia, or to discriminate between arrhythmias. The analysis may be performed visually, or in an automated manner in real time, such as in an ambulatory or implanted device, or post hoc by a bedside monitor.
摘要翻译：获取并以非线性方式处理诸如人心率数据的生物学数据，以促进对受试者的生理状态的评估和/或有助于预测初期障碍或不稳定性。对于所述数据的时间序列的滚动样本，导出确定性，层叠和复现度量。在给定的复发率下，重复测量可以是欧几里得阈值（ε= thresh ）。由衍生的确定性，层叠和复现测量的组合形成诸如颜色编码矩阵或多维向量的表示。然后可以分析该表示以检测生理不稳定性的指标，例如心律失常，或区分心律失常。分析可以在视觉上或以自动化方式实时执行，例如在移动或植入的装置中，或者通过床边监护仪进行事后执行。

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