公开(公告)号：US11181592B2

公开(公告)日：2021-11-23

申请号：US16944249

申请日：2020-07-31

Applicant: GE Precision Healthcare LLC

Inventor： Yu Liu ,  Kai Wang ,  Haoyang Xing ,  Xianchao Wu ,  Xin Xie ,  Dongliang Yang

IPC: G01R33/36 ,  H03F3/21

Abstract: A radio-frequency power converter and a radio-frequency transmission system for magnetic resonance imaging are provided in embodiments of the present invention. The radio-frequency power converter comprises a printed circuit board, the printed circuit board comprises a first circuit layer, a ground layer, and one or a plurality of intermediate layers located between the first circuit layer and the ground layer. A plurality of planar spiral inductors connected in parallel are formed on the first circuit layer. One ends of the plurality of inductors are connected to each other and respectively connected to one end of a first capacitor, the other ends of the plurality of inductors are respectively connected to one ends of a plurality of second capacitors, and the other ends of the plurality of second capacitors are all grounded.

公开(公告)号：US10782372B2

公开(公告)日：2020-09-22

申请号：US15720724

申请日：2017-09-29

Applicant: GE Precision Healthcare LLC

Inventor： Qingyu Dai ,  Haoyang Xing ,  Yu Liu ,  Chun Lai Xiao ,  Sheng Tong ,  Weinan Tang

IPC: G01R33/422 ,  G01R33/36 ,  G01R33/3415 ,  A61B5/055 ,  G01R33/385 ,  G01R33/56 ,  G01R33/34

Abstract: A magnetic resonance imaging (MRI) system radio frequency (RF) subsystem and a coil decoupling apparatus and method used therein. The MRI system RF subsystem comprises a body coil and a surface coil for receiving MR signals, and also comprises a preamplifier for amplifying the MR signals received by the body coil; the coil decoupling apparatus comprises a phase shifter, which is connected between the preamplifier and the body coil, and used for receiving an external voltage regulation signal to regulate an operation voltage thereof, wherein the voltage regulation signal is determined according to a current patient's weight.