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公开(公告)号：US11428762B2
公开(公告)日：2022-08-30
申请号：US16763719
申请日：2018-11-20
IPC分类号： G01R33/3415 , G01R33/34 , G01R33/36
摘要： Various methods and systems are provided for a flexible, lightweight, and lowcost radio frequency (RF) coil of a magnetic resonance imaging (MRI) system. In one example, a RF coil assembly for an MRI system includes a distributed capacitance loop portion comprising at least three distributed capacitance conductor wires encapsulated and separated by a dielectric material, a coupling electronics portion including a preamplifier, and a coil-interfacing cable extending between the coupling electronics portion and an interfacing connector of the RF coil assembly.
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公开(公告)号：US20180081006A1
公开(公告)日：2018-03-22
申请号：US15268397
申请日：2016-09-16
发明人： Fraser John Laing Robb , Robert Steven Stormont , Youqing Zhang , Victor Taracila , Miguel Angel Navarro, II , Dan Kenrick Spence , Shuying Huang , Peter Roemer
CPC分类号： G01R33/3685 , G01R33/341 , G01R33/3657
摘要： Various methods and systems are provided for a disconnecting a receive coil from a transmit coil of a magnetic resonance (MR) system during a transmit operation. In one example, a cabling system may include a first line of coil-interfacing cable having a first set of hybrid switches, the first set of hybrid switches including a first switch, a first resonance circuit, and a second switch connected in series, and a second line of the coil-interfacing cable having a second set of hybrid switches, the first line and the second line of the coil-interfacing cable operably coupling one or more radio frequency (RF) coil elements to respective channels of the MR system. By positioning the first and the second sets of hybrid switches along different locations along the coil-interfacing cables, and simultaneously operating each set of hybrid switches, common mode currents may be interrupted along the coil-interfacing cables.
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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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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：US20130131498A1
公开(公告)日：2013-05-23
申请号：US13720053
申请日：2012-12-19
发明人： Victor Taracila , Fraser Robb , Pei Chan , Miguel Navarro, II , Darren Gregan
CPC分类号： G01R33/3415 , G01R33/34084 , G01R33/481
摘要： An adjustable MRI head coil apparatus includes a plurality of plates. Each of the plurality of plates includes a plurality of RF receive elements arranged in a fixed orientation. The adjustable MRI head coil apparatus also includes a support coupled to at least one of the plurality of plates. The support includes a ball head mechanism configured to allow tilting of the adjustable MRI head coil apparatus in a least one direction.
摘要翻译： 可调节的MRI头部线圈装置包括多个板。 多个板中的每一个包括以固定取向布置的多个RF接收元件。 可调节MRI头部线圈装置还包括联接到多个板中的至少一个的支撑件。 支撑件包括球头机构，其被构造成允许可调节的MRI头部线圈装置在至少一个方向上倾斜。
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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：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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公开(公告)号：US11360168B2
公开(公告)日：2022-06-14
申请号：US16198713
申请日：2018-11-21
发明人： Victor Taracila , Balint Franko , Mark Giancola , Yun-Jeong Stickle , Clyve Konrad Rosales Follante , Fraser John Laing Robb
IPC分类号： G01R33/34 , G01R33/3415 , A61B5/055 , A61B5/00 , A61G13/12
摘要： Various systems are provided for neck radio frequency (RF) coil assemblies for a magnetic resonance imaging (MRI) system. In one example, a neck RF coil assembly includes a central RF coil array including a first plurality of RF coils configured to cover a neck of a subject to be imaged, an upper RF coil array including a second plurality of RF coils extending upward from the central RF coil array and configured to cover a lower head region of the subject, and a lower RF coil array including a third plurality of RF coils extending downward from the central RF coil array and configured to cover an upper shoulder region of the subject, wherein each RF coil of the first, second, and third pluralities of RF coils comprises a loop portion comprising two distributed capacitance wire conductors encapsulated and separated by a dielectric material.
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公开(公告)号：US11307274B2
公开(公告)日：2022-04-19
申请号：US16001793
申请日：2018-06-06
摘要： Various methods and systems are provided for radio frequency (RF) coils for magnetic resonance imaging (MRI). In one embodiment, a radio frequency coil assembly for a magnetic resonance imaging system includes: a flexible spine; and at least two RF coil sections each coupled to the flexible spine and movable relative to each other, each RF coil section comprising at least one flexible RF coil, each RF coil including 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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