-
公开(公告)号：US10969447B2
公开(公告)日：2021-04-06
申请号：US16196558
申请日：2018-11-20
发明人： Ceara Stack , Thomas Grafendorfer , Fraser Robb , Steven Falk , Yun-Jeong Stickle , Taylan Dalveren , Guido Kudielka , Robert Stormont , Scott Lindsay , Victor Taracilla
IPC分类号： G01R33/34 , G01R33/3415 , G01R33/36 , G01R33/565 , G01R33/54 , G01R33/56 , G01R33/567
摘要： Methods and systems are provided for radio frequency (RF) coil arrays for magnetic resonance imaging (MRI) systems. In an embodiment, a RF coil array assembly for a MRI system includes a compressible body; an upper posterior RF coil array including a first plurality of RF coils embedded in the compressible body; a lower posterior RF coil array including a second plurality of RF coils embedded in the compressible body; and a head and neck RF coil array removably coupled to the upper posterior RF coil array. The head and neck RF coil array includes a third plurality of RF coils embedded in the compressible body, and one or more neck straps configured to fold over a neck of a subject to be imaged by the MRI system.
-
公开(公告)号：US20140300359A1
公开(公告)日：2014-10-09
申请号：US14261885
申请日：2014-04-25
CPC分类号： G01R33/3685 , G01R33/3415
摘要： In accordance with various embodiments, a radio frequency (RF) coil array for use in a magnetic resonance imaging (MRI) system includes at least first and second RF coils. Each of the RF coils have a main body loop configured to at least one of transmit or receive RF energy at an operating imaging frequency in connection with acquiring MRI image data for an MRI system. The RF coil array also includes first and second cables configured to electrically couple the first and second RF coils, respectively, to a system interface. The RF coil array also includes a common ground connection between the first and second cables. The common ground connection is selectively positioned at a grounding point along lengths of the first and second cables to form a ground loop having a select self-resonance frequency (SRF) that differs from the imaging frequency of the MRI system.
摘要翻译： 根据各种实施例，用于磁共振成像（MRI）系统的射频（RF）线圈阵列至少包括第一和第二RF线圈。 每个RF线圈具有主体回路，该主体回路被配置为在获取用于MRI系统的MRI图像数据的操作成像频率处的发射或接收RF能量中的至少一个。 RF线圈阵列还包括被配置为将第一和第二RF线圈分别电耦合到系统接口的第一和第二电缆。 RF线圈阵列还包括第一和第二电缆之间的公共接地连接。 公共接地连接被选择性地定位在沿着第一和第二电缆的长度的接地点处，以形成具有与MRI系统的成像频率不同的选择自谐振频率（SRF）的接地回路。
-
公开(公告)号：US20140184217A1
公开(公告)日：2014-07-03
申请号：US13728874
申请日：2012-12-27
CPC分类号： G01R33/3635
摘要： A system includes a multi-nuclear magnetic resonance (MR) receiving coil, wherein the receiving coil includes a frequency tuning component configured operate the receiving coil at either a first frequency or a second frequency. The receiving coil also includes an impedance matching component configured to maintain a substantially constant impedance of the receiving coil when the receiving coil is operated at either the first frequency or the second frequency. Furthermore, the receiving coil is configured to measure a first nucleus when operated at the first frequency, and wherein the receiving coil is configured to measure a second nucleus when operated at the second frequency.
摘要翻译： 一种系统包括多核磁共振（MR）接收线圈，其中接收线圈包括配置的频率调谐组件，以第一频率或第二频率操作接收线圈。 接收线圈还包括阻抗匹配部件，其被配置为当接收线圈以第一频率或第二频率操作时，保持接收线圈的基本恒定的阻抗。 此外，接收线圈被配置为当以第一频率操作时测量第一核，并且其中接收线圈被配置为当以第二频率操作时测量第二核。
-
公开(公告)号：US10295623B2
公开(公告)日：2019-05-21
申请号：US15337197
申请日：2016-10-28
发明人： Victor Taracila , Fraser Robb , Eddy Boskamp , Daniel Chirayath , Shuying Huang , Madhwesha Rao , James Wild
摘要： An MRI system for imaging one or more subjects is provided. The MRI system includes a magnet assembly and an MRI controller. The magnet assembly includes an RF coil for transmitting a first set of RF pulses into the one or more subjects at an initial Larmor frequency. The MRI controller is configured to electronically communicate with the RF coil and to adjust a resonant frequency of the RF coil such that the RF coil transmits a second set of RF pulses into the one or more subjects at one or more subsequent Larmor frequencies that are different from the initial Larmor frequency.
-
公开(公告)号：US09829550B2
公开(公告)日：2017-11-28
申请号：US13728874
申请日：2012-12-27
IPC分类号： G01R33/36
CPC分类号： G01R33/3635
摘要： A system includes a multi-nuclear magnetic resonance (MR) receiving coil, wherein the receiving coil includes a frequency tuning component configured operate the receiving coil at either a first frequency or a second frequency. The receiving coil also includes an impedance matching component configured to maintain a substantially constant impedance of the receiving coil when the receiving coil is operated at either the first frequency or the second frequency. Furthermore, the receiving coil is configured to measure a first nucleus when operated at the first frequency, and wherein the receiving coil is configured to measure a second nucleus when operated at the second frequency.
-
公开(公告)号：US09726737B2
公开(公告)日：2017-08-08
申请号：US14261885
申请日：2014-04-25
IPC分类号： G01R33/36 , G01R33/3415
CPC分类号： G01R33/3685 , G01R33/3415
摘要： In accordance with various embodiments, a radio frequency (RF) coil array for use in a magnetic resonance imaging (MRI) system includes at least first and second RF coils. Each of the RF coils have a main body loop configured to at least one of transmit or receive RF energy at an operating imaging frequency in connection with acquiring MRI image data for an MRI system. The RF coil array also includes first and second cables configured to electrically couple the first and second RF coils, respectively, to a system interface. The RF coil array also includes a common ground connection between the first and second cables. The common ground connection is selectively positioned at a grounding point along lengths of the first and second cables to form a ground loop having a select self-resonance frequency (SRF) that differs from the imaging frequency of the MRI system.
-
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.
-
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。
-
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。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.016 秒)