公开(公告)号：US10295623B2

公开(公告)日：2019-05-21

申请号：US15337197

申请日：2016-10-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Victor Taracila ,  Fraser Robb ,  Eddy Boskamp ,  Daniel Chirayath ,  Shuying Huang ,  Madhwesha Rao ,  James Wild

IPC: G01R33/34 ,  G01R33/36 ,  G01R33/54

Abstract: 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：US10254361B2

公开(公告)日：2019-04-09

申请号：US15268397

申请日：2016-09-16

Applicant: General Electric Company

Inventor： Fraser John Laing Robb ,  Robert Steven Stormont ,  Youqing Zhang ,  Victor Taracila ,  Miguel Angel Navarro, II ,  Dan Kenrick Spence ,  Shuying Huang ,  Peter Roemer

IPC: G01R33/36 ,  G01R33/341

Abstract: 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.

公开(公告)号：US20180081006A1

公开(公告)日：2018-03-22

申请号：US15268397

申请日：2016-09-16

Applicant: General Electric Company

Inventor： Fraser John Laing Robb ,  Robert Steven Stormont ,  Youqing Zhang ,  Victor Taracila ,  Miguel Angel Navarro, II ,  Dan Kenrick Spence ,  Shuying Huang ,  Peter Roemer

IPC: G01R33/36 ,  G01R33/34

CPC classification number: G01R33/3685 ,  G01R33/341 ,  G01R33/3657

Abstract: 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.