公开(公告)号：US07834628B2

公开(公告)日：2010-11-16

申请号：US12243038

申请日：2008-10-01

Applicant: Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

Inventor： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

IPC: G01V3/00

CPC classification number: G01R33/3415 ,  G01R33/3621 ,  G01R33/3664 ,  G01R33/3692

Abstract: An arrangement to transmit magnetic resonance signals has at least two reception branches. Each reception branch contains a single antenna of a local coil as well as an amplifier connected with the single antenna, such that an amplified magnetic resonance signal is formed from a magnetic resonance signal that is acquired via the single antenna. In a multiplexer, each input is connected with a respective reception branch, such that the amplified magnetic resonance signals of the reception branch are combined by the multiplexer into a resulting signal using a time multiplexing method. A transmission path is connected on one side with an output of the multiplexer and on the other side with a receiver, such that the resulting signal is transmitted from the multiplexer to the receiver via the transmission path.

Abstract translation: 传输磁共振信号的装置具有至少两个接收分支。 每个接收分支包含本地线圈的单个天线以及与单个天线连接的放大器，使得经由单个天线获取的磁共振信号形成放大的磁共振信号。 在多路复用器中，每个输入与相应的接收分支相连，使得接收分支的放大的磁共振信号由多路复用器使用时间复用方法组合成结果信号。 传输路径在一侧与多路复用器的输出端连接，另一侧与接收器连接，使得所得到的信号经由传输路径从多路复用器传输到接收器。

公开(公告)号：US07808243B2

公开(公告)日：2010-10-05

申请号：US12281494

申请日：2007-01-22

Applicant: Peter Feld ,  Georg Rauh ,  Wilfried Schnell ,  Markus Vester

Inventor： Peter Feld ,  Georg Rauh ,  Wilfried Schnell ,  Markus Vester

IPC: G01V3/00

CPC classification number: H01P1/383

Abstract: A circulator has a ferrite, and the circulator is arranged in the vicinity of a device that produces a static magnetic field in the environment surrounding the device, this static magnetic field giving the circulator a non-reciprocal behavior, with respect to circulation of energy among the gates of the circulator, as a result of interaction of the ferrite with the static magnetic field. A magnetic resonance apparatus embodies such a circulator, and the basic field magnet of this magnetic resonance apparatus generates the static magnetic field.

Abstract translation: 循环器具有铁氧体，并且循环器布置在围绕设备的环境中产生静态磁场的装置附近，该静磁场相对于循环器中的能量循环而产生不可逆的行为 由于铁氧体与静磁场的相互作用，循环器的栅极。 磁共振装置体现这种环行器，并且该磁共振装置的基本场磁体产生静磁场。

公开(公告)号：US20100157859A1

公开(公告)日：2010-06-24

申请号：US12645829

申请日：2009-12-23

Applicant: Ralph Oppelt ,  Markus Vester

Inventor： Ralph Oppelt ,  Markus Vester

IPC: H04B7/185 ,  H04L5/00

CPC classification number: G08C15/02 ,  G01R33/341 ,  G01R33/3415 ,  G01R33/3657 ,  H04J1/08

Abstract: In a method and device for the transmission of a multiplicity of signals having different frequencies between a base station and a module situated at a location remote from the base station via a single, common cable connection, some of the signals being transmitted from the electronic assembly to the module and, in general simultaneously, the remaining signals are transmitted in the opposite direction. Each of the base station and the module has bandpass filter bank therein having a multiplicity of bandpass filters, the number thereof being a function of the number of channels to be transmitted, with which the respectively received signals are spectrally separated from one another so that they are available for further signal processing in the base station, or for further use in the module.

Abstract translation: 在用于通过单个公共电缆连接在位于远离基站的位置的基站和模块之间传输具有不同频率的多个信号的方法和装置中，一些信号从电子组件传送 并且通常同时地，剩余的信号以相反方向传输。 基站和模块中的每一个具有带通滤波器组，其中具有多个带通滤波器，其数量是要发送的信道数量的函数，分别接收的信号彼此频谱分离，使得它们 可用于在基站中进一步的信号处理，或用于模块中的进一步使用。

公开(公告)号：US20100074365A1

公开(公告)日：2010-03-25

申请号：US12585373

申请日：2009-09-14

Applicant: Ralf Ladebeck ,  Markus Vester

Inventor： Ralf Ladebeck ,  Markus Vester

IPC: H04B15/00 ,  H04B1/10

CPC classification number: G01T1/1603 ,  A61B5/0002 ,  A61B5/055 ,  A61B5/7257 ,  A61B6/037 ,  A61B6/5247 ,  G01D3/036 ,  G01R33/481 ,  G01T1/17

Abstract: A method and a transmission system are disclosed for the transmission of wanted signals between a sensor and an evaluation unit. In order to suppress interference to the sensor signals due to external interference sources as far as possible, at least one embodiment of the inventive system has at least one signal receiver with the sensor for detecting a wanted signal and a signal processing device for conditioning the wanted signal, at whose output a mixed signal with a wanted signal component and an interference signal component from at least one interference source are present; an interference source signal input for detecting at least one interference source signal of the at least one interference source; a filter device for reconstructing the interference signal component as a function of the at least one interference source signal; and a subtractor for eliminating interference superimposed on the wanted signal.

Abstract translation: 公开了用于在传感器和评估单元之间传输所需信号的方法和传输系统。 为了尽可能地抑制由于外部干扰源对传感器信号的干扰，本发明系统的至少一个实施例具有至少一个具有用于检测有用信号的传感器的信号接收器和用于调节所需信号的信号处理装置 信号，其输出具有有用信号分量的混合信号和来自至少一个干扰源的干扰信号分量; 用于检测所述至少一个干扰源的至少一个干扰源信号的干扰源信号输入; 滤波器装置，用于根据所述至少一个干扰源信号重建所述干扰信号分量; 以及用于消除叠加在有用信号上的干扰的减法器。

公开(公告)号：US20090256571A1

公开(公告)日：2009-10-15

申请号：US12101252

申请日：2008-04-11

Applicant: Mark A. Griswold ,  Jeremiah Heilmann ,  Wolfgang Renz ,  Markus Vester

Inventor： Mark A. Griswold ,  Jeremiah Heilmann ,  Wolfgang Renz ,  Markus Vester

IPC: G01R33/28

CPC classification number: G01R33/3858 ,  G01R33/34046 ,  G01R33/34076 ,  G01R33/3614 ,  G01R33/385 ,  G01R33/4215

Abstract: An arrangement for controlling an antenna arrangement in a magnetic resonance device has an antenna arrangement that surrounds an examination region and that has at least one antenna element for emitting an amplified transmit signal. At least one amplifier is provided, at the input of which a high-frequency transmit signal is connected, which is present on the output side of the amplifier as an amplified transmit signal. The amplifier is connected to a feed point of the antenna arrangement on the output side, in order to emit the amplified transmit signal. Coil windings of a primary gradient coil are also provided, which at least partially include the antenna arrangement and the examination region. Coil windings of a secondary gradient coil at least partially include the coil windings of the primary gradient coil, the antenna arrangement (and the examination region). The coil windings of the secondary gradient coil and the coil windings of the primary gradient coil are at a distance from one another, in which the at least one amplifier is arranged.

Abstract translation: 用于控制磁共振装置中的天线装置的装置具有围绕检查区域的天线装置，并且具有用于发射放大的发射信号的至少一个天线元件。 提供至少一个放大器，在其输入处连接有高频发射信号，其作为放大的发射信号存在于放大器的输出侧。 放大器连接到输出侧的天线装置的馈电点，以便发射放大的发射信号。 还提供了主梯度线圈的线圈绕组，其至少部分地包括天线装置和检查区域。 次级梯度线圈的线圈绕组至少部分地包括主梯度线圈的线圈绕组，天线装置（和检查区域）。 次级梯度线圈的线圈绕组和主梯度线圈的线圈绕组彼此间隔开，其中布置有至少一个放大器。

公开(公告)号：US07579836B2

公开(公告)日：2009-08-25

申请号：US11994019

申请日：2007-01-30

Applicant: Wilfried Schnell ,  Markus Vester

Inventor： Wilfried Schnell ,  Markus Vester

IPC: G01V3/00 ,  H01P7/08

CPC classification number: G01R33/345 ,  G01R33/3642

Abstract: A resonator for magnetic resonance applications has a conductor element proceeding in an extension direction, that operates with a resonance current at a resonance frequency oscillating therein in the extension direction. The conductor element is tuned to the resonance frequency and has an overall length in the extension direction that is smaller than half of the wavelength of the resonance frequency. The conductor element is a multi-layer conductor with layers that are electrically insulated from each other that, in said extension direction, have layer ends that are capacitively coupled with each other. During operation of the conductor element at the resonance frequency, respective layer currents flow in the layers in the extension direction that are substantially equal in magnitude.

Abstract translation: 用于磁共振应用的谐振器具有沿延伸方向前进的导体元件，其以在延伸方向上振荡的谐振频率的谐振电流工作。 导体元件被调谐到谐振频率，并且在延伸方向上的总长度小于谐振频率波长的一半。 导体元件是具有彼此电绝缘的层的多层导体，其在所述延伸方向上具有彼此电容耦合的层端。 在谐振频率下的导体元件工作期间，各层电流在延伸方向的层中流动，其大小基本相等。

公开(公告)号：US20090146660A1

公开(公告)日：2009-06-11

申请号：US12332617

申请日：2008-12-11

Applicant: Wilfried Schnell ,  Markus Vester

Inventor： Wilfried Schnell ,  Markus Vester

IPC: G01R33/20

CPC classification number: G01R33/5612 ,  G01R33/288 ,  G01R33/3415 ,  G01R33/3607

Abstract: A magnetic resonance system has multiple individual transmission antennas each charged with a transmission current to emit an individual excitation field in an examination volume to excite magnetic resonances in a subject in the examination volume, with a total excitation field being a superimposition of the individual excitation fields. A determination device is provided with a spatial distribution of an absorption rate of the examination subject and determines a combination of amplitudes and phase positions for the transmission currents relative to one another such that a locally absorbed power at a first point of the examination subject relative to a locally absorbed power at a second point of the examination subject satisfies a relative condition. The determination device communicates the combination of amplitudes and phase positions that it has determined to a control device. The control device charges the transmission antennas with transmission currents whose phase positions correspond with the phase positions communicated by the determination device and whose amplitudes are scaled with a uniform scaling factor for all transmission currents relative to the amplitudes communicated by the determination device.

Abstract translation: 磁共振系统具有多个单独的发射天线，每个发射天线都充满了传输电流，以在检查体积中发射单独的激发场，以激发检查体积中的受检者的磁共振，总激励场是各个激励场的叠加 。 确定装置被提供有检查对象的吸收率的空间分布，并确定相对于彼此的传输电流的幅度和相位位置的组合，使得在检查对象的第一点处的局部吸收功率相对于 在检查对象的第二点处的局部吸收力满足相对条件。 确定装置将其已经确定的幅度和相位位置的组合传送到控制装置。 控制装置用发射电流对发射天线进行充电，其相位位置对应于由确定装置传送的相位位置，并且其幅度以相对于由确定装置传送的振幅的所有发射电流的均匀缩放因子缩放。

公开(公告)号：US20090096456A1

公开(公告)日：2009-04-16

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: G01R33/36

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：US20090096455A1

公开(公告)日：2009-04-16

申请号：US12243038

申请日：2008-10-01

Applicant: Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

Inventor： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

IPC: G01R33/36

CPC classification number: G01R33/3415 ,  G01R33/3621 ,  G01R33/3664 ,  G01R33/3692

Abstract: An arrangement to transmit magnetic resonance signals has at least two reception branches. Each reception branch contains a single antenna of a local coil as well as an amplifier connected with the single antenna, such that an amplified magnetic resonance signal is formed from a magnetic resonance signal that is acquired via the single antenna. In a multiplexer, each input is connected with a respective reception branch, such that the amplified magnetic resonance signals of the reception branch are combined by the multiplexer into a resulting signal using a time multiplexing method. A transmission path is connected on one side with an output of the multiplexer and on the other side with a receiver, such that the resulting signal is transmitted from the multiplexer to the receiver via the transmission path.

Abstract translation: 传输磁共振信号的装置具有至少两个接收分支。 每个接收分支包含本地线圈的单个天线以及与单个天线连接的放大器，使得经由单个天线获取的磁共振信号形成放大的磁共振信号。 在多路复用器中，每个输入与相应的接收分支相连，使得接收分支的放大的磁共振信号由多路复用器使用时间复用方法组合成结果信号。 传输路径在一侧与多路复用器的输出端连接，另一侧与接收器连接，使得所得到的信号经由传输路径从多路复用器传输到接收器。

公开(公告)号：US07417433B2

公开(公告)日：2008-08-26

申请号：US11436211

申请日：2006-05-17

Applicant: Oliver Heid ,  Markus Vester

Inventor： Oliver Heid ,  Markus Vester

IPC: G01V3/00

CPC classification number: A61B5/055 ,  G01R33/3415 ,  G01R33/3692 ,  H03F7/04

Abstract: In a method for implementation of a magnetic resonance examination, and a magnetic resonance apparatus, and an array for acquisition of magnetic resonance signals, and a magnetic resonance signal at a magnetic resonance frequency are acquired from an examination region with an array of frequency conversion units after an RF excitation and are radiated as frequency-converted signals. The resulting signal field is acquired by a number of reception antennas of a second antenna array, which are arranged at different spatial positions and thus allow a spatial resolution of the frequency-converted signals. The acquired acquisition signals are used for image reconstruction.

Abstract translation: 在用于执行磁共振检查的方法中，并且从具有频率转换单元阵列的检查区域获取磁共振检查的方法和磁共振装置以及用于获取磁共振信号的阵列和磁共振频率的磁共振信号 在RF激励之后并且被辐射为频率转换信号。 所得到的信号场由第二天线阵列的多个接收天线获取，第二天线阵列被布置在不同的空间位置，从而允许频率转换信号的空间分辨率。 获取的采集信号用于图像重建。