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公开(公告)号：US09599686B2
公开(公告)日：2017-03-21
申请号：US15013576
申请日：2016-02-02
IPC分类号： G01V3/00 , G01R33/341 , G01R33/32 , G01R33/28 , G01R33/34 , G01R33/48 , G01R33/3415
CPC分类号： G01R33/341 , G01R33/283 , G01R33/32 , G01R33/34007 , G01R33/34084 , G01R33/3415 , G01R33/481
摘要： Systems and methods for coil arrangements in Magnetic Resonance Imaging (MRI) are provided. One coil arrangement includes a magnet bore, a radio-frequency (RF) transmit coil coupled to the magnet bore, and at least one RF receive coil coupled to the magnet bore. The RF receive coil is movable within the magnet bore.
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12.发明申请公开(公告)号：US20160161577A1
公开(公告)日：2016-06-09
申请号：US15013576
申请日：2016-02-02
IPC分类号： G01R33/341 , G01R33/48
CPC分类号： G01R33/341 , G01R33/283 , G01R33/32 , G01R33/34007 , G01R33/34084 , G01R33/3415 , G01R33/481
摘要： Systems and methods for coil arrangements in Magnetic Resonance Imaging (MRI) are provided. One coil arrangement includes a magnet bore, a radio-frequency (RF) transmit coil coupled to the magnet bore, and at least one RF receive coil coupled to the magnet bore. The RF receive coil is movable within the magnet bore.
摘要翻译： 提供了磁共振成像（MRI）中线圈布置的系统和方法。 一个线圈装置包括磁体孔，耦合到磁体孔的射频（RF）传输线圈以及耦合到磁体孔的至少一个RF接收线圈。 RF接收线圈可在磁体孔内移动。
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公开(公告)号：US10379181B2
公开(公告)日：2019-08-13
申请号：US15166636
申请日：2016-05-27
IPC分类号： G01R33/36
摘要： Various methods and systems are provided for a common mode trap for a magnetic resonance imaging (MRI) apparatus. In one embodiment, a common mode trap for an MRI apparatus comprises: a first conductor and a second conductor counterwound around a length of a central conductor, wherein the first and the second conductors are radially spaced a first distance from the central conductor at first and second ends of the length, and wherein the first and the second conductors are radially spaced a second distance larger than the first distance from the central conductor at a midpoint of the length. In this way, coupling and subsequent detuning of common mode traps provided adjacent to one another may be prevented.
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14.发明申请公开(公告)号：US20190154774A1
公开(公告)日：2019-05-23
申请号：US16194597
申请日：2018-11-19
IPC分类号： G01R33/3415 , G01R33/34 , A61B5/055
摘要： Various methods and systems are provided for a flexible, lightweight, low-cost radio frequency (RF) coil array of a magnetic resonance imaging (MRI) system. In one example, a RF coil assembly for a MRI system includes a loop portion comprising distributed capacitance wire conductors, a coupling electronics portion including a pre-amplifier. A coupler slidably connects two adjacent coil loops together. An open area is formed inside the loops enabling tissue manipulation or biopsies from interventional or surgical procedures.
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公开(公告)号：US20180081007A1
公开(公告)日：2018-03-22
申请号：US15268277
申请日：2016-09-16
CPC分类号： G01R33/3657 , G01R33/34007 , G01R33/341 , G01R33/3685
摘要： Various methods and systems are provided for a disconnecting a receive coil from a transmit coil of a magnetic resonance (MR) imaging apparatus during a transmit operation. In one example, a device may include a first device and a second device, each having a first terminal and a second terminal operably coupling different terminals of a radio frequency (RF) coil with one or more data acquisition elements, each device including a pair of switches. In this way, by simultaneously operating each of switches of the devices, the receive coil may be isolated from a transmit RF coil during transmit operation.
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公开(公告)号：US11280859B2
公开(公告)日：2022-03-22
申请号：US15995025
申请日：2018-05-31
发明人： Taylan Dalveren , Victor Taracila , Kolman Juhasz , Aleksey Zemskov , Fraser John Laing Robb , Robert Steven Stormont
IPC分类号： G01R33/3415 , G01R33/34
摘要： Various methods and systems are provided for radio frequency (RF) coils for magnetic resonance imaging (MRI). In one embodiment, an RF coil assembly for an MRI system includes a posterior end including a first set of flexible RF coils; an anterior end including a second set of flexible RF coils; a central section extending between the posterior end and anterior end, wherein the posterior end and the anterior end are bendable to the central section. Each flexible RF coil of the first set and second set of flexible RF coils includes a loop portion comprising a coupling electronics portion and at least two parallel, distributed capacitance wire conductors encapsulated and separated by a dielectric material.
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公开(公告)号：US10209328B2
公开(公告)日：2019-02-19
申请号：US15391437
申请日：2016-12-27
IPC分类号： G01V3/00 , G01R33/36 , G01R33/385 , G01R33/30 , G01R33/54
摘要： Various methods and systems are provided for a common mode trap for a magnetic resonance imaging (MRI) apparatus. In one embodiment, a common mode trap comprises: a first conductor and a second conductor counterwound around a length of a central conductor, the first and the second conductors radially spaced a distance from the central conductor, the first and second conductors fixed to a first side of the central conductor; and a third conductor and a fourth conductor counterwound around the length of the central conductor, the third and fourth conductors are radially spaced the distance from the central conductor, the third and fourth conductors fixed to a second side of the central conductor opposite the first side. In this way, the density of common mode trap conductors in a common mode trap may be increased, thereby increasing the mutual inductance between the common mode trap and the central conductor.
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公开(公告)号：US10185002B2
公开(公告)日：2019-01-22
申请号：US14730741
申请日：2015-06-04
摘要： A continuous common mode trap assembly includes a central conductor and plural common mode traps. The central conductor has a length, and is configured to transmit a signal between a magnetic resonance imaging (MRI) receive coil and at least one processor of an MRI system. The plural common mode traps extend along at least a portion of the length of the central conductor. The common mode traps are disposed contiguously. The common mode traps are configured to provide an impedance to reduce transmitter driven currents of the MRI system.
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公开(公告)号：US09891299B1
公开(公告)日：2018-02-13
申请号：US14281431
申请日：2014-05-19
IPC分类号： G01R33/38 , G01R33/3873 , G01R33/58 , G01R33/385
CPC分类号： G01R33/3873 , G01R33/34007 , G01R33/385 , G01R33/3875 , G01R33/58
摘要： A magnetic resonance imaging (MRI) system includes a plurality of radio frequency (RF) coils configured to produce a static B0 field having non-homogeneous characteristics. The MRI system includes an RF transceiver configured to acquire MR imaging data from the RF coils for an area of interest. The system includes a DC source coupled to at least one of the RF coils to form a shimming RF coil, the DC source configured to force a select DC current through the shimming RF coil to at least partially shim the non-homogeneous characteristics of the B0 field. The shimming RF coil includes first and second conductors that exhibit distributed capacitance along a length thereof. At least one of the first and second conductors have first and second termination ends with an elongated and continuous conductive path therebetween to convey the select DC current from the DC source through the shimming RF coil.
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公开(公告)号：US20160356868A1
公开(公告)日：2016-12-08
申请号：US14730741
申请日：2015-06-04
CPC分类号： G01R33/3685 , G01R33/34
摘要： A continuous common mode trap assembly includes a central conductor and plural common mode traps. The central conductor has a length, and is configured to transmit a signal between a magnetic resonance imaging (MRI) receive coil and at least one processor of an MRI system. The plural common mode traps extend along at least a portion of the length of the central conductor. The common mode traps are disposed contiguously. The common mode traps are configured to provide an impedance to reduce transmitter driven currents of the MRI system.
摘要翻译： 连续共模捕集器组件包括中心导体和多个共模陷阱。 中心导体具有长度，并且被配置为在磁共振成像（MRI）接收线圈和MRI系统的至少一个处理器之间传输信号。 多个共模捕获器沿着中心导体的长度的至少一部分延伸。 共模式陷阱相邻布置。 共模陷阱被配置为提供阻抗以减小MRI系统的发射机驱动电流。
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