公开(公告)号：US10197646B2

公开(公告)日：2019-02-05

申请号：US14705576

申请日：2015-05-06

申请人： Elfar Adalsteinsson ,  Luca Daniel ,  Bastien Guerin ,  Boris Keil ,  Zohaib Mahmood ,  Markus Vester ,  Lawrence Wald

发明人： Elfar Adalsteinsson ,  Luca Daniel ,  Bastien Guerin ,  Boris Keil ,  Zohaib Mahmood ,  Markus Vester ,  Lawrence Wald

IPC分类号： G01R33/36 ,  G01R33/34 ,  G01R33/385 ,  G01R33/561 ,  G01R33/3415

摘要： A magnetic resonance imaging (MRI) system includes a plurality of transmitters to generate a parallel transmission radio frequency (RF) pulse, an array of coils coupled to the plurality of transmitters to apply the parallel transmission RF pulse to a subject, and a decoupling system connected to the plurality of transmitters and the array of coils. The decoupling system includes a plurality of hybrid couplers, each hybrid coupler of the plurality of hybrid couplers being coupled to a respective pair of the plurality of transmitters and to a respective pair of the array of coils. The plurality of hybrid couplers are configured to diagonalize an impedance matrix of the plurality of coils.

公开(公告)号：US20150323623A1

公开(公告)日：2015-11-12

申请号：US14705576

申请日：2015-05-06

申请人： Elfar Adalsteinsson ,  Luca Daniel ,  Bastien Guerin ,  Boris Keil ,  Zohaib Mahmood ,  Markus Vester ,  Lawrence Wald

发明人： Elfar Adalsteinsson ,  Luca Daniel ,  Bastien Guerin ,  Boris Keil ,  Zohaib Mahmood ,  Markus Vester ,  Lawrence Wald

IPC分类号： G01R33/36 ,  G01R33/385 ,  G01R33/561 ,  G01R33/34

CPC分类号： G01R33/365 ,  G01R33/34076 ,  G01R33/34092 ,  G01R33/3415 ,  G01R33/3657 ,  G01R33/385 ,  G01R33/5612

摘要： A magnetic resonance imaging (MRI) system includes a plurality of transmitters to generate a parallel transmission radio frequency (RF) pulse, an array of coils coupled to the plurality of transmitters to apply the parallel transmission RF pulse to a subject, and a decoupling system connected to the plurality of transmitters and the array of coils. The decoupling system includes a plurality of hybrid couplers, each hybrid coupler of the plurality of hybrid couplers being coupled to a respective pair of the plurality of transmitters and to a respective pair of the array of coils. The plurality of hybrid couplers are configured to diagonalize an impedance matrix of the plurality of coils.

摘要翻译： 磁共振成像（MRI）系统包括多个发射器以产生并行传输射频（RF）脉冲，耦合到多个发射器的线圈阵列以将并行发射RF脉冲施加到对象，以及解耦系统 连接到多个发射器和线圈阵列。 解耦系统包括多个混合耦合器，多个混合耦合器的每个混合耦合器耦合到相应的多个发射器对以及相应的一对线圈阵列。 多个混合耦合器被配置为使多个线圈的阻抗矩阵对角化。