公开(公告)号：US20170299670A1

公开(公告)日：2017-10-19

申请号：US15405302

申请日：2017-01-12

申请人： Life Services LLC

发明人： Brandon J. Tramm ,  Charles A. Lemaire ,  Matthew T. Waks ,  Scott M. Schillak

IPC分类号： G01R33/3415 ,  G01R33/36 ,  G01R33/34

CPC分类号： G01R33/3415 ,  G01R33/34007 ,  G01R33/3403 ,  G01R33/34046 ,  G01R33/3453 ,  G01R33/3614 ,  G01R33/3628

摘要： A method and apparatus for receiving (RX) radio-frequency (RF) signals suitable for MRI and/or MRS from a plurality of MRI “coil elements” (antennae), each contained in one or a plurality of body-coil parts, wherein the body-coil parts are easily assemble-able into a body-coil assembly (e.g., in some embodiments, a cylindrical body-coil assembly) with shield elements that are overlapped and/or concentric, and wherein the body-coil assembly is readily disassemble-able for easier shipping, and wherein the body-coil parts are optionally usable individually as transmit (TX) and/or receive (RX) coil elements for MRI. In some embodiments, the system provides for repeatable assembly and disassembly for ease of maintenance (such as frequency tuning and impedance matching) such that the body-coil assembly can be fully assembled and tested, then taken apart for less costly and easier shipping (with reduced risk of damage) and then reassembled at the destination for operation in an MRI system.

公开(公告)号：US09709645B2

公开(公告)日：2017-07-18

申请号：US14075455

申请日：2013-11-08

申请人： SAMSUNG ELECTRONICS CO., LTD. ,  Industry Academic Cooperation Foundation Kyunghee University

发明人： Ju-hyung Lee ,  Soo-yeol Lee

IPC分类号： G01V3/00 ,  G01R33/3415 ,  G01R33/34 ,  G01R33/36

CPC分类号： G01R33/3415 ,  G01R33/34007 ,  G01R33/3453 ,  G01R33/3628 ,  G01R33/5659

摘要： A phased array radio-frequency (RF) coil includes a cylindrical frame including a coaxial inner frame and a coaxial outer frame having different diameters; and vertical loop coils arranged in a circumferential direction of the cylindrical frame. Each vertical loop coil includes an inner conductor extending in a lengthwise direction on the coaxial inner frame; an outer conductor extending in a lengthwise direction on the coaxial outer frame and facing the inner conductor; and a first resonant frequency adjustment capacitor for connecting one end of the inner conductor in the lengthwise direction and one end of the outer conductor in the lengthwise direction so that the phased array RF coil resonates at an MR operating frequency.

公开(公告)号：US20150285876A1

公开(公告)日：2015-10-08

申请号：US14440125

申请日：2013-10-28

申请人： HITACCHI MEDICAL CORPORATION

发明人： Hideta Habara ,  Shinichiro Suzuki ,  Yosuke Otake

IPC分类号： G01R33/36 ,  G01R33/54 ,  G01R33/385 ,  G01R33/34

CPC分类号： G01R33/36 ,  A61B5/055 ,  G01R33/34 ,  G01R33/3453 ,  G01R33/385 ,  G01R33/54

摘要： In order to provide a technique in which, in the TEM type antenna, the uniformity of sensitivity in the internal portion of the antenna can be maintained with simple configuration, without scarifying the internal space of the antenna, regardless of a size, a shape and a location of a load, and also regardless of locations of the constitutional members of the antenna, the TEM type antenna includes rung conductors which branch out into plural pieces in the middle portion and join into one piece in the two end portions. In other words, the rung conductor having a void space in the middle portion of the rung conductor in the longitudinal direction is provided. The adjacent rung conductors are disposed to be further closer to each other in the middle portion, and to maintain the same distance as that in the related art in the end portion.

摘要翻译： 为了提供一种技术，其中在TEM型天线中，能够以简单的结构保持天线的内部部分的灵敏度的均匀性，而不会削弱天线的内部空间，而不管尺寸，形状和尺寸如何 负载的位置，并且也不管天线的构成部件的位置如何，TEM型天线包括在中间部分分成多个部分并在两个端部中连接成一体的梯形导体。 换句话说，提供了在纵向方向上在梯形导体的中间部分具有空隙的梯形导体。 相邻的梯形导体被设置为在中间部分中彼此更靠近，并且在端部中保持与现有技术相同的距离。

公开(公告)号：US20150177344A1

公开(公告)日：2015-06-25

申请号：US14409328

申请日：2013-05-21

申请人： Duke University

发明人： Hui Han ,  Trong-Kha Truong ,  Allen W. Song

IPC分类号： G01R33/36

CPC分类号： G01R33/3642 ,  G01R33/341 ,  G01R33/3453 ,  G01R33/3628 ,  G01R33/3635 ,  G01R33/3657 ,  G01R33/3875 ,  G01R33/5659

摘要： Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES). Parallel transmit/receive (which can include B?1#191 shimming and/or parallel imaging capabilities) and B1 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current can flow in the same coil simultaneously but independently with no electromagnetic interference between the two modes. This invention is not only applicable when the same coil array is used for parallel transmit, receive and shim, but also when two separate coil arrays are used. In that case, the B0 shimming capability can be integrated into one of the coil arrays (i.e. a transmit array with B1 shimming capability or a receive array), thereby increasing the flexibility and practical utility of the iPRES technology.

摘要翻译： 系统，方法和设备配置为集成并行接收，激励和匀场（iPRES）。 平行发射/接收（其可以包括B 1＃191匀场和/或并行成像能力）和B1匀场采用相同的一组局部线圈或横向电磁（TEM）线圈元件，每个线圈或TEM元件在两个 RF模式（用于发送/接收和B1匀场）和直流（DC）模式（用于B0匀场）。 射频和直流电流都能同时流入同一线圈，但独立地在两种模式之间没有电磁干扰。 本发明不仅在相同的线圈阵列用于并行发射，接收和垫片时，而且当使用两个分离的线圈阵列时也是可应用的。 在这种情况下，可以将B0匀场功能集成到线圈阵列之中（即具有B1匀场能力的发射阵列或接收阵列），从而增加iPRES技术的灵活性和实用性。

公开(公告)号：US20140253126A1

公开(公告)日：2014-09-11

申请号：US14349424

申请日：2012-10-17

申请人： Hideta Habara ,  Yoshihisa Soutome ,  Hiroyuki Takeuchi ,  Hisaaki Ochi

发明人： Hideta Habara ,  Yoshihisa Soutome ,  Hiroyuki Takeuchi ,  Hisaaki Ochi

IPC分类号： G01R33/34

CPC分类号： G01R33/34092 ,  G01R33/3415 ,  G01R33/3453 ,  G01R33/36 ,  G01R33/365

摘要： In order to provide a technique which can suppress coupling to homogenize the spatial distribution of an RF magnetic field and can improve penetration of the RF magnetic field into the subject, pad-like electric field conductors having a predetermined area are provided outside both ends of a rung conductor as a part of a configuration which forms a loop-like circuit and is driven as an antenna. An antenna device includes a sheet-like conductor, a rung conductor which is arranged at a predetermined distance from the sheet-like conductor, two electric field conductors which are arranged in both end portions of the rung conductor at a predetermined distance from the sheet-like conductor, and connection terminals which are transmission and reception terminals provided in the rung conductor and the sheet-like conductor. The rung conductor and the sheet-like conductor configure a loop circuit which resonates at a preset frequency.

摘要翻译： 为了提供可以抑制耦合以均匀化RF磁场的空间分布并且可以改善RF磁场对被摄体的穿透的技术，具有预定面积的垫状电场导体设置在 梯形导体作为形成环状电路并被驱动为天线的配置的一部分。 天线装置包括片状导体，布置在与片状导体预定距离的梯形导体，两个电场导体，布置在与片状导体预定距离的梯形导体的两个端部中， 以及设置在梯形导体和片状导体中的发送和接收端子的连接端子。 梯形导体和片状导体构成以预设频率谐振的环路电路。

公开(公告)号：US08581588B2

公开(公告)日：2013-11-12

申请号：US12678638

申请日：2008-09-19

申请人： Wolfgang Driesel ,  Harald Moeller

发明人： Wolfgang Driesel ,  Harald Moeller

IPC分类号： G01V3/00 ,  G01R33/48

CPC分类号： G01R33/345 ,  G01R33/3415 ,  G01R33/3453 ,  G01R33/3635 ,  G01R33/5659

摘要： An antenna (100) for a magnetic resonance device has a predetermined sensitivity and is designed to excite and/or detect a magnetic resonance in an object under test. The antenna (100) includes a stripline resonator (10) that is equipped with at least one stripline (11), and a conductor loop arrangement (20) that adjoins the stripline resonator (10) and forms at least one conductor loop (21, 22, 28) which is interrupted by at least one capacitor (23). The sensitivity of the antenna (100) is formed by overlapping sensitivity profiles of the stripline resonator (10) and the conductor loop arrangement (20). Also described are an antenna array (200) including a plurality of antennas (100), a magnetic resonance device (300) including at least one antenna (100) or antenna array (200), and methods for magnetic resonance imaging or magnetic resonance spectroscopy.

摘要翻译： 用于磁共振装置的天线（100）具有预定的灵敏度，并被设计成激发和/或检测被测物体中的磁共振。 天线（100）包括配备有至少一个带状线（11）的带状线谐振器（10）和与带状线谐振器（10）相邻并形成至少一个导体环路（21）的导体环路装置（20） 22,28），其被至少一个电容器（23）中断。 天线（100）的灵敏度由带状线谐振器（10）和导体环路装置（20）的重叠灵敏度分布形成。 还描述了包括多个天线（100），包括至少一个天线（100）或天线阵列（200）的磁共振装置（300）的天线阵列（200），以及用于磁共振成像或磁共振波谱 。

公开(公告)号：US08467848B2

公开(公告)日：2013-06-18

申请号：US13147205

申请日：2010-01-12

申请人： Torsten Solf ,  Volkmar Schulz

发明人： Torsten Solf ,  Volkmar Schulz

IPC分类号： A61B5/05

CPC分类号： G01R33/481 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5247 ,  G01R33/345 ,  G01R33/3453 ,  G01R33/3685 ,  G01R33/385 ,  G01R33/422

摘要： A nuclear detector module (24) is housed within an electrically conductive hollow resonator element (18) that is to be used in a combined MR and nuclear imaging unit. The resonator element has an inner face (26) which is radiation transparent facing an examination region (14) and a plurality of other faces (28) disposed facing and spaced from an RF screen (22).

摘要翻译： 核检测器模块（24）容纳在用于组合MR和核成像单元的导电中空谐振元件（18）内。 谐振器元件具有面向检查区域（14）的辐射透明的内表面（26）和面对RF屏幕（22）并与之隔开的多个其它面（28）。

公开(公告)号：US08436615B2

公开(公告)日：2013-05-07

申请号：US12832267

申请日：2010-07-08

申请人： Wolfgang Renz ,  Karsten Wicklow

发明人： Wolfgang Renz ,  Karsten Wicklow

IPC分类号： G01R33/00 ,  A61B5/055

CPC分类号： G01R33/345 ,  G01R33/3453 ,  G01R33/365 ,  G01R33/3657 ,  G01R33/3685

摘要： A waveguide antenna assembly for a magnetic resonance tomography apparatus, particularly a waveguide antenna assembly that can be detuned for an operation with local coils, is composed of multiple metal surfaces connected by diodes respectively located between the metal surfaces. Only when the diodes are through-connected between these metal surfaces are the surfaces connected with one another in terms of RF signals via these diodes, so the assembly operates as a waveguide antenna. When the diodes are disabled between these metal surfaces, the surfaces are unconnected with one another for RF signals.

摘要翻译： 用于磁共振断层摄影装置的波导天线组件，特别是能够与本地线圈进行操作而失谐的波导天线组件，由分别位于金属表面之间的二极管连接的多个金属表面组成。 只有当二极管连接在这些金属表面之间时，这些表面是通过这些二极管以RF信号相互连接的表面，因此组件作为波导天线工作。 当在这些金属表面之间禁用二极管时，表面彼此不连接用于RF信号。

公开(公告)号：US20120161762A1

公开(公告)日：2012-06-28

申请号：US12957893

申请日：2010-12-01

申请人： Paul A. ZANK ,  Peter A. KETTERIDGE ,  John T. APOSTOLOS ,  Candice L. BRITTAIN

发明人： Paul A. ZANK ,  Peter A. KETTERIDGE ,  John T. APOSTOLOS ,  Candice L. BRITTAIN

IPC分类号： G01R33/46 ,  G01R33/34

CPC分类号： G01R33/12 ,  G01N24/084 ,  G01R33/3453 ,  G01R33/3607 ,  G01R33/441 ,  G01V3/14

摘要： Nuclear quadrupole resonance substance detection at a distance is provided by crossed or overlapping high frequency beams in which the frequency of one of the beams is offset with respect to the frequency of the other beam by an amount equal to the resonant frequency of the non-linear material to be detected. The presence of energy at the offset frequency within the overlapping beams pumps any non-linear material within the overlapping beams to cause stimulated emission which is detected, in one embodiment, utilizing a network analyzer, along with correlation of the detected stimulated emission signature with a library of signatures for predetermined substances.

摘要翻译： 通过交叉或重叠的高频波束提供一定距离的核四极共振物质检测，其中一个波束的频率相对于另一个波束的频率偏移等于非线性的谐振频率的量 要检测的材料 在重叠波束内的偏移频率处的能量的存在泵送重叠波束内的任何非线性材料以引起受激发射，在一个实施例中，利用网络分析仪以及检测到的受激发射特征与 预定物质签名图书馆。

公开(公告)号：US20120146643A1

公开(公告)日：2012-06-14

申请号：US12963217

申请日：2010-12-08

申请人： SAIKAT SAHA ,  THOMAS KWOK-fah FOO ,  BRUCE COURTNEY CAMPBELL AMM ,  JEAN-BAPTISTE MATHIEU ,  ROBERT ARVIN HEDEEN

发明人： SAIKAT SAHA ,  THOMAS KWOK-fah FOO ,  BRUCE COURTNEY CAMPBELL AMM ,  JEAN-BAPTISTE MATHIEU ,  ROBERT ARVIN HEDEEN

IPC分类号： G01R33/44

CPC分类号： G01R33/34076 ,  G01R33/3453

摘要： A radio frequency (RF) coil for a magnetic resonance imaging (MRI) system includes a first end ring, a second end ring, and a plurality of rungs electrically coupled between the first and second end rings, each rung including a first rung portion formed from a plurality of conductors and a second rung portion formed from a single solid conductor. A resonance assembly for a magnetic resonance imaging (MRI) system and an MRI imaging system are also described herein.

摘要翻译： 用于磁共振成像（MRI）系统的射频（RF）线圈包括第一端环，第二端环和电耦合在第一和第二端环之间的多个梯级，每个梯级包括形成的第一梯级部分 从多个导体和由单个固体导体形成的第二梯级部分。 本文还描述了用于磁共振成像（MRI）系统和MRI成像系统的共振组件。