公开(公告)号：US20100213939A1

公开(公告)日：2010-08-26

申请号：US12392537

申请日：2009-02-25

Applicant: Daniel Sodickson ,  Stephan Biber ,  Markus Vester ,  Wolfgang Renz ,  Wilfried Schnell

Inventor： Daniel Sodickson ,  Stephan Biber ,  Markus Vester ,  Wolfgang Renz ,  Wilfried Schnell

IPC: G01R33/48

CPC classification number: G01R33/3415 ,  G01R33/34023

Abstract: In a magnetic resonance imaging apparatus and method, radio frequency signals are radiated into an examination subject and/or received from the examination subject by an array of radio frequency coils that completely encircles the examination subject, and that is located at a distance from the examination subject out of contact with the examination subject.

Abstract translation: 在磁共振成像装置和方法中，将射频信号通过完全包围检查对象的射频线圈阵列照射到检查对象和/或从检查对象接收，并且位于与检查距离的位置 与考试科目无关。

公开(公告)号：US07764065B2

公开(公告)日：2010-07-27

申请号：US12243056

申请日：2008-10-01

Applicant: Stephan Biber ,  Helmut Greim ,  Joerg Rothard ,  Markus Vester

Inventor： Stephan Biber ,  Helmut Greim ,  Joerg Rothard ,  Markus Vester

IPC: G01V3/00

CPC classification number: G01R33/3415 ,  A61B5/055 ,  G01R33/34046 ,  G01R33/3642 ,  G01R33/3692

Abstract: An arrangement to transmit magnetic resonance signals has a local coil composed of a number of individual antennas for acquisition of radio-frequency signals of a magnetic resonance examination. Preamplifiers amplify the radio-frequency signals, and a transmission device transmits the radio-frequency signals from the local coil to the preamplifiers. The transmission device is fashioned as a readout coil and has a number of individual antennas. The individual antennas of the readout coil are magnetically coupled with the individual antennas of the local coil, with the individual antennas of the local coil and the individual antennas of the readout coil forming a linear MIMO transmission system describable by a transmission matrix.

Abstract translation: 用于发送磁共振信号的装置具有由用于获取磁共振检查的射频信号的多个单独天线组成的局部线圈。 前置放大器放大射频信号，并且传输设备将来自本地线圈的射频信号发送到前置放大器。 传输装置被形成为读出线圈并且具有多个单独的天线。 读出线圈的各个天线与本地线圈的各个天线磁耦合，本地线圈的各个天线和读出线圈的各个天线形成可由传输矩阵描述的线性MIMO传输系统。

公开(公告)号：US20100148778A1

公开(公告)日：2010-06-17

申请号：US12633859

申请日：2009-12-09

Applicant: Stephan Biber

Inventor： Stephan Biber

IPC: G01R33/44

CPC classification number: G01R33/3415 ,  G01R33/3621 ,  G01R33/3664

Abstract: A magnetic resonance receiver system has an antenna arrangement with a number of receiver antenna elements to receive MR response signals. The magnetic resonance system has a combination network arrangement with a number of combination networks in order to combine the MR response signals received by various receiver antenna elements, to form modes, a frequency multiplexer arrangement downstream of the combination network that superimposes at least some of the modes in a common transmission signal, and a transmission line arrangement with a number of transmission lines in order to respectively transfer the transmission signals to an input channel of a first channel switching matrix. This input channel is associated with the transmission line. Downstream of the first channel switching matrix is a frequency demultiplexer arrangement that filters the modes superimposed in a transmission signal out of the transmission signal. Downstream of the frequency demultiplexer arrangement is a second channel switching matrix that connects the modes at specific inputs of an MR signal processing device.

Abstract translation: 磁共振接收器系统具有天线装置，其具有多个接收器天线元件以接收MR响应信号。 磁共振系统具有与多个组合网络的组合网络布置，以便组合由各种接收机天线元件接收的MR响应信号，以形成模式;组合网络下游的频率复用器装置，其叠加至少一些 公共传输信号中的模式，以及具有多条传输线的传输线配置，以便将传输信号分别传送到第一信道切换矩阵的输入信道。 该输入通道与传输线相关联。 第一通道切换矩阵的下游是频率解复用器装置，其对发送信号中的发送信号中叠加的模式进行滤波。 频率解复用器装置的下游是连接MR信号处理装置的特定输入端的模式的第二信道切换矩阵。

公开(公告)号：US20100033180A1

公开(公告)日：2010-02-11

申请号：US12535784

申请日：2009-08-05

Applicant: Stephan Biber ,  Thorsten Speckner

Inventor： Stephan Biber ,  Thorsten Speckner

IPC: G01R33/48 ,  G01R33/44

CPC classification number: G01R33/583 ,  G01R33/3415 ,  G01R33/3614

Abstract: In a method for calibration of a magnetic resonance acquisition channel having a magnetic resonance acquisition antenna in a magnetic resonance system, in a test signal is emitted by the transmission antenna in the magnetic resonance system and is received by the acquisition antenna. Acquisition channel calibration data for the appertaining magnetic resonance acquisition channel are determined on the basis of the received test signal. The method can be implemented by a calibration data determination device for a magnetic resonance system as well as by a magnetic resonance system itself.

Abstract translation: 在用于在磁共振系统中具有磁共振采集天线的磁共振采集通道的校准方法中，测试信号由发射天线在磁共振系统中发射并由采集天线接收。 基于所接收的测试信号确定适用于磁共振获取通道的采集通道校准数据。 该方法可以由用于磁共振系统的校准数据确定装置以及磁共振系统本身来实现。