公开(公告)号：US10969447B2

公开(公告)日：2021-04-06

申请号：US16196558

申请日：2018-11-20

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ceara Stack ,  Thomas Grafendorfer ,  Fraser Robb ,  Steven Falk ,  Yun-Jeong Stickle ,  Taylan Dalveren ,  Guido Kudielka ,  Robert Stormont ,  Scott Lindsay ,  Victor Taracilla

IPC: G01R33/34 ,  G01R33/3415 ,  G01R33/36 ,  G01R33/565 ,  G01R33/54 ,  G01R33/56 ,  G01R33/567

Abstract: 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

Applicant: General Electric Company

Inventor： Thomas Grafendorfer ,  Fraser Robb ,  Greig Scott ,  Shreyas Vasanawala

IPC: G01R33/36 ,  G01R33/34

CPC classification number: G01R33/3685 ,  G01R33/3415

Abstract: 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.

Abstract translation: 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：US09726737B2

公开(公告)日：2017-08-08

申请号：US14261885

申请日：2014-04-25

Applicant: General Electric Company

Inventor： Thomas Grafendorfer ,  Fraser Robb ,  Greig Scott ,  Shreyas Vasanawala

IPC: G01R33/36 ,  G01R33/3415

CPC classification number: G01R33/3685 ,  G01R33/3415

Abstract: 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.