公开(公告)号：US20160245888A1

公开(公告)日：2016-08-25

申请号：US15052607

申请日：2016-02-24

申请人： Jan Bollenbeck ,  Georg Pirkl ,  Robert Rehner ,  Peter Speier ,  Markus Vester

发明人： Jan Bollenbeck ,  Georg Pirkl ,  Robert Rehner ,  Peter Speier ,  Markus Vester

IPC分类号： G01R33/563 ,  G01R33/565 ,  G01R33/567

CPC分类号： G01R33/56308 ,  G01R33/56509

摘要： A method for generating motion information for an at least partially moving examination region includes outputting at least one first excitation signal with a first frequency band. The first excitation signal is picked up with a receive coil arrangement of a magnetic resonance system. The at least one coil of the receive coil arrangement is configured to pick up a receive frequency band that includes the first frequency band. At least one item of motion information for the examination region is determined from the picked up first excitation signal.

摘要翻译： 一种用于产生用于至少部分移动的检查区域的运动信息的方法包括：输出具有第一频带的至少一个第一激励信号。 用磁共振系统的接收线圈装置拾取第一激励信号。 接收线圈装置的至少一个线圈被配置为拾取包括第一频带的接收频带。 从拾取的第一激励信号确定至少一个用于检查区域的运动信息项。

公开(公告)号：US10393845B2

公开(公告)日：2019-08-27

申请号：US15368607

申请日：2016-12-03

申请人： Steffen Schröter ,  Jan Bollenbeck ,  Matthias Fenchel ,  Peter Speier ,  Markus Vester

发明人： Steffen Schröter ,  Jan Bollenbeck ,  Matthias Fenchel ,  Peter Speier ,  Markus Vester

IPC分类号： G01R33/36 ,  G01R33/565

摘要： A transmitter for pilot tone navigation in a magnetic resonance tomography system includes a power supply and an antenna. The transmitter is configured to transmit a pilot tone signal via the antenna. The transmitter also includes a decoupling element in order to protect a transmitter output from signals that the antenna receives with excitation pulses of the magnetic resonance tomography system during a magnetic resonance tomography. In a method, movement-dependent changes to the pilot tone signal of the transmitter are identified by a controller of the magnetic resonance tomography system.

公开(公告)号：US10145918B2

公开(公告)日：2018-12-04

申请号：US13784797

申请日：2013-03-04

申请人： Nikolaus Demharter ,  Klaus Huber ,  Claus Seisenberger ,  Thorsten Speckner ,  Markus Vester ,  Christian Wünsch

发明人： Nikolaus Demharter ,  Klaus Huber ,  Claus Seisenberger ,  Thorsten Speckner ,  Markus Vester ,  Christian Wünsch

IPC分类号： G01R33/54 ,  G01R33/36

摘要： A method for emitting a sequence of high frequency pulses that may have different envelopes in a magnetic resonance tomography system is provided. A digital instruction signal that specifies the envelope for the high frequency pulses that are to be emitted is received. A digital control signal is transmitted to a high frequency unit for generating high frequency pulses, depending on the instruction signal. A test signal that allows notification of a current overload situation is received. The current control signal is reduced if the test signal indicates an overload situation.

公开(公告)号：US09910113B2

公开(公告)日：2018-03-06

申请号：US13923308

申请日：2013-06-20

申请人： Markus Vester

发明人： Markus Vester

IPC分类号： G01V3/00 ,  G01R33/36

CPC分类号： G01R33/3692 ,  G01R33/3621

摘要： A local coil for a magnetic resonance imaging system for acquisition of magnetic resonance signals includes a receiving mechanism for wireless transmission of operating energy of the local coil and/or a signal of the magnetic resonance imaging system. The receiving mechanism is configured to take the operating energy and/or the signal from a supply field. A magnetic resonance imaging system is also provided. The magnetic resonance imaging system includes a transmitting mechanism for wireless transmission of operating energy of a local coil and/or a signal of the magnetic resonance imaging system. The transmitting mechanism has a transmission signal generator that is connected to a field source and a field sink. The transmitting mechanism is constructed such that, in operation, the operating energy and/or the signal is transmitted by a supply field that is present as an electrical alternating voltage field between the field source and the field sink.

公开(公告)号：US20180024206A1

公开(公告)日：2018-01-25

申请号：US15659233

申请日：2017-07-25

申请人： Björn Heismann ,  Markus Vester

发明人： Björn Heismann ,  Markus Vester

IPC分类号： G01R33/28 ,  G01R33/30 ,  G01R33/36

摘要： A magnetic resonance tomography unit includes a control unit, a transmitting unit having one or a plurality of transmitting antennae, a selector, and a high-frequency unit having a signal output in signal connection with the transmitting unit. The transmitting unit is configured to irradiate high-frequency energy using the selector and the one or plurality of transmitting antennae optionally into only a first region of a plurality of different regions in a patient.

公开(公告)号：US09829549B2

公开(公告)日：2017-11-28

申请号：US13890128

申请日：2013-05-08

申请人： Ludwig Eberler ,  Jürgen Nistler ,  Markus Vester

发明人： Ludwig Eberler ,  Jürgen Nistler ,  Markus Vester

IPC分类号： G01R33/34 ,  G01R33/422 ,  G01R33/36 ,  G01R33/48 ,  G01R33/563

CPC分类号： G01R33/34092 ,  G01R33/34046 ,  G01R33/34076 ,  G01R33/3628 ,  G01R33/422 ,  G01R33/4806 ,  G01R33/56341

摘要： A whole-body coil for a magnetic resonance tomography device includes one or more compensation capacitors between a high-frequency antenna and an RF shield. The one or more compensation capacitors each have variable capacitance caused by a variation in a distance of the RF shield to the high-frequency antenna.

公开(公告)号：US09395426B2

公开(公告)日：2016-07-19

申请号：US13560780

申请日：2012-07-27

申请人： Andre Albsmeier ,  Jan Bollenbeck ,  Daniel Evers ,  Klaus Pistor ,  Stefan Schwarzer ,  Markus Vester

发明人： Andre Albsmeier ,  Jan Bollenbeck ,  Daniel Evers ,  Klaus Pistor ,  Stefan Schwarzer ,  Markus Vester

IPC分类号： G01R33/36 ,  A61B5/055 ,  G01R33/28 ,  G01R33/3415

CPC分类号： G01R33/36 ,  A61B5/055 ,  G01R33/288 ,  G01R33/3415 ,  G01R33/3692

摘要： A method for wireless transfer of energy to a local coil system for a magnetic resonance system is provided. The method includes determining an energy requirement value representing a minimum energy level to be fed to the local coil system, so that the local coil system may carry out a predetermined function over a predetermined time period. Energy is transferred adaptively to the local coil system depending on the energy requirement value.

摘要翻译： 提供了一种将能量无线传递到用于磁共振系统的局部线圈系统的方法。 该方法包括确定表示要馈送到局部线圈系统的最小能级的能量需求值，使得局部线圈系统可以在预定时间段内执行预定功能。 能量根据能量需求值自适应地转移到局部线圈系统。

公开(公告)号：US09297868B2

公开(公告)日：2016-03-29

申请号：US13277006

申请日：2011-10-19

申请人： Stephan Biber ,  Jürgen Nistler ,  Markus Vester

发明人： Stephan Biber ,  Jürgen Nistler ,  Markus Vester

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

CPC分类号： G01R33/3607 ,  G01R33/3415 ,  G01R33/3621

摘要： The present embodiments include an antenna circuit that is adapted to supply and/or read out a plurality of antenna elements of an antenna assembly of a magnetic resonance imaging system. The antenna elements are decoupled by phase shifter elements and supplied with signals by the phase shifter elements. The antenna circuit may also be used to detect signals that are received by the antenna elements.

摘要翻译： 本实施例包括适于提供和/或读出磁共振成像系统的天线组件的多个天线元件的天线电路。 天线元件由移相器元件解耦并由移相器元件提供信号。 天线电路还可以用于检测由天线元件接收的信号。

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。

公开(公告)号：US20150061681A1

公开(公告)日：2015-03-05

申请号：US14468937

申请日：2014-08-26

申请人： Wolfgang Renz ,  Markus Vester

发明人： Wolfgang Renz ,  Markus Vester

IPC分类号： G01R33/36

CPC分类号： G01R33/36 ,  G01R33/288 ,  G01R33/3607 ,  G01R33/3635 ,  G01R33/3678

摘要： The embodiments relate to a method, a MRI device, and a circuit for an imaging magnetic resonance imaging device that includes at least one transmission coil for transmitting a magnetic field, where the circuit includes a hybrid coupler and at least one phase shifter that may be or are arranged in the transmission path between an amplifier and at least one transmission coil of the magnetic resonance imaging device.

摘要翻译： 实施例涉及一种用于成像磁共振成像装置的方法，MRI装置和电路，其包括用于传输磁场的至少一个传输线圈，其中电路包括混合耦合器和至少一个移相器 或者布置在放大器与磁共振成像装置的至少一个传输线圈之间的传输路径中。