公开(公告)号：US20120224647A1

公开(公告)日：2012-09-06

申请号：US13221652

申请日：2011-08-30

Applicant: Klaus Huber ,  Clemens Jungkunz ,  Sebastian Martius ,  Martin Nisznansky ,  Markus Vester

Inventor： Klaus Huber ,  Clemens Jungkunz ,  Sebastian Martius ,  Martin Nisznansky ,  Markus Vester

IPC: H04L27/00

CPC classification number: G01R33/3607

Abstract: A method for controlling a signal with a plurality of independent components is provided. The signal is fed as an input signal via an input path to a control path that supplies an output signal. The output signal is fed via an output path to a control apparatus controlling the input signal. A coupling signal is determined in a coupling determination apparatus. On the basis of the coupling signal, the independent components are decoupled in a decoupling apparatus, as a result of which, a decoupled output signal is generated. Components of the decoupled output signal are decoupled from the components of the input signal. The decoupled output signal is fed as a control variable to the control apparatus. The control apparatus controls each independent component separately on the basis of a desired signal with a diagonal controller and outputs the input signal as a manipulated variable.

Abstract translation: 提供了一种用多个独立部件控制信号的方法。 信号通过输入路径作为输入信号馈送到提供输出信号的控制路径。 输出信号通过输出路径馈送到控制输入信号的控制装置。 在耦合确定装置中确定耦合信号。 在耦合信号的基础上，独立分量在去耦装置中解耦，其结果是产生解耦输出信号。 去耦输出信号的分量与输入信号的分量去耦。 去耦输出信号作为控制变量馈送给控制装置。 控制装置基于具有对角线控制器的期望信号分别控制各独立分量，并输出输入信号作为操作变量。

公开(公告)号：US08073225B2

公开(公告)日：2011-12-06

申请号：US11450631

申请日：2006-06-09

Applicant: Ulrich Hagen ,  Oliver Heid ,  Thomas Kluge ,  Markus Vester

Inventor： Ulrich Hagen ,  Oliver Heid ,  Thomas Kluge ,  Markus Vester

IPC: G06K9/00

CPC classification number: G01R33/3621 ,  G01R33/54 ,  G01R33/5608 ,  G06F19/00 ,  G06F19/321 ,  G06T15/005

Abstract: In a method and a device for optimization of a combined system for the acquisition of magnetic resonance tomographic measurement data and an image reconstruction process, the image reconstruction process is already executed during the acquisition of the measurement data, by the calculation process being deconstructed into calculation packets, and rules are defined that establish which requirements must be met for the execution of the respective calculation packet. The calculation process is reorganized into a workflow structure based on the calculation packets and the rules. The calculation process is controlled using the generated workflow structure synchronized to the acquisition process. The rules entirely describe the calculation process, i.e. inclusive of all calculation packets and their logical dependencies. The stability of the calculation process is thus entirely independent of the chronological order of the measurement data acquisition.

Abstract translation: 在用于获取磁共振断层摄影测量数据和图像重建处理的组合系统的优化的方法和装置中，在采集测量数据期间已经执行了图像重建处理，计算过程被解构为计算 定义分组和规则，确定为执行相应的计算分组必须满足哪些要求。 计算过程根据计算包和规则重组为工作流结构。 使用与采集过程同步的生成的工作流结构来控制计算过程。 规则完全描述计算过程，即包括所有计算分组及其逻辑依赖性。 因此，计算过程的稳定性完全独立于测量数据采集的时间顺序。

公开(公告)号：US20110074426A1

公开(公告)日：2011-03-31

申请号：US12585867

申请日：2009-09-28

Applicant: Matthias J. Schmand ,  Markus Vester ,  Nan Zhang

Inventor： Matthias J. Schmand ,  Markus Vester ,  Nan Zhang

IPC: G01T1/164 ,  G01T1/20 ,  G01V3/00

CPC classification number: A61B6/4411 ,  A61B5/0035 ,  A61B5/055 ,  A61B6/037 ,  A61B6/4417 ,  G01R33/481 ,  G01T1/1603 ,  G01T1/1644

Abstract: An emission tomography detector module and an emission tomography scanner are disclosed. In at least one embodiment, the emission tomography detector modules includes a scintillator to capture an photon, the scintillator emitting a scintillating light on capturing the photon; a first type of solid-state photodetector to detect the scintillating light; and a second type of solid-state photodetector to detect the scintillating light, wherein the first type of solid-state photodetector and the second type of solid-state photodetector are different with respect to a detecting property.

Abstract translation: 公开了一种发射断层摄影检测器模块和发射断层扫描仪。 在至少一个实施例中，发射断层摄影检测器模块包括闪光体以捕获光子，闪烁体在捕获光子时发射闪烁光; 用于检测闪烁光的第一种类型的固态光电检测器; 以及用于检测闪烁光的第二类型的固态光电检测器，其中所述第一类型的固态光电检测器和所述第二类型的固态光电检测器相对于检测特性是不同的。

公开(公告)号：US07847550B2

公开(公告)日：2010-12-07

申请号：US12353292

申请日：2009-01-14

Applicant: Dirk Diehl ,  Juergen Nistler ,  Wolfgang Renz ,  Markus Vester ,  Sebastian Wolf

Inventor： Dirk Diehl ,  Juergen Nistler ,  Wolfgang Renz ,  Markus Vester ,  Sebastian Wolf

IPC: G01V3/00

CPC classification number: G01R33/3415 ,  G01R33/288 ,  G01R33/5612 ,  G01R33/5659

Abstract: A control device for a magnetic resonance system activates the coils of a transmission array and a gradient magnet system of the magnetic resonance system by causing an excitation pulse to be supplied to each coil. A magnetization that exhibits a first actual inhomogeneity thereby is generated in an excitation volume of the magnetic resonance system. The control device determines the excitation pulse for each coil using a start pulse and a maximum allowable inhomogeneity. The respective start pulse has a total time duration. When the control device activates the coils of the transmission array and of the gradient magnet system corresponding to the start pulse, a magnetization that exhibits a second actual inhomogeneity that is smaller than the maximum permissible inhomogeneity is generated in the excitation volume. The control device determines an intermediate point of the start pulse so that the respective start pulse is divided into a first pulse part and a second pulse part that is complementary to the first pulse part. The first pulse part corresponds to a respective low-energy portion of the start pulse, the second pulse part with a high-energy portion of the respective start pulse. The control device temporally extends the second pulse part and correspondingly compresses the second pulse part in terms of amplitude. The temporally extended and amplitude-compressed pulse part is used as the excitation pulse. The control device determines the intermediate point such that the first inhomogeneity is still smaller than the maximum allowable inhomogeneity.

Abstract translation: 用于磁共振系统的控制装置通过使激励脉冲提供给每个线圈来激活磁共振系统的传输阵列的线圈和梯度磁体系统。 在磁共振系统的激励体积中产生呈现出第一实际不均匀性的磁化。 控制装置使用起始脉冲和最大允许不均匀性来确定每个线圈的激励脉冲。 相应的起始脉冲具有总持续时间。 当控制装置激活与起始脉冲相对应的传输阵列和梯度磁体系统的线圈时，在激励体积中产生表现出小于最大允许不均匀性的第二实际不均匀性的磁化。 控制装置确定起始脉冲的中间点，使得各个起始脉冲被分成与第一脉冲部分互补的第一脉冲部分和第二脉冲部分。 第一脉冲部分对应于起始脉冲的相应低能部分，第二脉冲部分具有相应起始脉冲的高能部分。 控制装置暂时地延伸第二脉冲部分并相应地按照幅度压缩第二脉冲部分。 时间延长和幅度压缩的脉冲部分被用作激励脉冲。 控制装置确定中间点，使得第一不均匀性仍然小于最大允许不均匀性。

公开(公告)号：US07737787B2

公开(公告)日：2010-06-15

申请号：US12331512

申请日：2008-12-10

Applicant: Ralph Oppelt ,  Markus Vester

Inventor： Ralph Oppelt ,  Markus Vester

IPC: H03F3/04

CPC classification number: H03F1/34 ,  H03F1/26 ,  H03F1/42 ,  H03F1/56 ,  H03F3/195 ,  H03F2200/147 ,  H03F2200/36 ,  H03F2200/372

Abstract: An amplifier circuit has a transistor element that has an input terminal, an output terminal) and a third terminal. An input signal to be amplified is supplied to the input terminal. The amplified input signal is emitted as an output signal at the output terminal. The input terminal is connected with the output terminal via a first reactance. The third terminal is connected via a second reactance with a zero potential. One of the reactances is fashioned as an inductor and the other of the reactances is fashioned as a capacitor. An inductance value of the inductor and a capacitance value of the capacitor are dimensioned such that the quotient of the inductance value of the inductor and the capacitance value of the capacitor is equal to the product of a desired input impedance that is effective at the input terminal and an output impedance associated with the output impedance. Based on this dimensioning, the output impedance associated with the output terminal is mapped to the input terminal at the same level or scaled.

Abstract translation: 放大器电路具有晶体管元件，其具有输入端子，输出端子）和第三端子。 要放大的输入信号被提供给输入端。 放大的输入信号作为输出端子处的输出信号发出。 输入端通过第一电抗与输出端连接。 第三端子经由具有零电位的第二电抗连接。 其中一个电抗被形成为一个电感，另一个是电抗器。 电感器的电感值和电容器的电容值被设定为使得电感器的电感值和电容器的电容值的商数等于在输入端子处有效的期望的输入阻抗的乘积 以及与输出阻抗相关联的输出阻抗。 基于此尺寸，与输出端子相关联的输出阻抗被映射到相同电平或缩放的输入端子。

公开(公告)号：US07683330B2

公开(公告)日：2010-03-23

申请号：US11438209

申请日：2006-05-23

Applicant: Robert Krieg ,  Rainer Kuth ,  Ralf Ladebeck ,  Ralph Oppelt ,  Sebastian Schmidt ,  Markus Vester

Inventor： Robert Krieg ,  Rainer Kuth ,  Ralf Ladebeck ,  Ralph Oppelt ,  Sebastian Schmidt ,  Markus Vester

IPC: G01T1/166

CPC classification number: G01T1/2985 ,  A61B6/037 ,  G01R33/481

Abstract: A method is disclosed for determining positron emission measurement information in the context of positron emission tomography. The method includes carrying out a positron emission measurement, in a body area of a subject to be examined, to record positron emission measurement information with point resolution and determining a time frame of the measurement by, at the same time, generating images of the body area to be examined with a relatively higher time resolution and with point-resolved image data, using a second imaging method. Further, a local shift of points of individual images of the second imaging method is determined, caused by movement processes of the subject to be examined, and as a function thereof, of the positron emission measurement information for at least a part of the measurement period and of the body area to be examined. Finally, the positron emission measurement information is adjusted as a function of the determined shift.

Abstract translation: 公开了一种用于在正电子发射断层摄影的背景下确定正电子发射测量信息的方法。 该方法包括在待检查对象的身体区域中进行正电子发射测量，以记录具有点分辨率的正电子发射测量信息，并且通过同时生成身体的图像来确定测量的时间范围 使用第二成像方法以相对较高的时间分辨率和点分辨图像数据进行检查的区域。 此外，由第二成像方法的各个图像的点的局部偏移由待检查对象的移动处理确定，并且作为其功能，确定至少部分测量周期的正电子发射测量信息 以及要检查的身体区域。 最后，调整正电子发射测量信息作为确定的位移的函数。

公开(公告)号：US07622927B2

公开(公告)日：2009-11-24

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: G01V3/00

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

Abstract: An arrangement configured 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 configured 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, and within that distance the at least one amplifier is arranged.

Abstract translation: 配置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，并且具有配置成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一定距离，并且在该距离内布置至少一个放大器。

公开(公告)号：US20090286478A1

公开(公告)日：2009-11-19

申请号：US12465147

申请日：2009-05-13

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

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

IPC: H04B7/00

CPC classification number: G01R33/3664 ,  G01R33/3415 ,  G01R33/3607 ,  G01R33/3621 ,  G01R33/3635

Abstract: An arrangement for transmitting magnetic resonance signals, with a transmission link that connects a local coil with a receiver, has a first channel of the local coil with a first single antenna to acquire a first magnetic resonance signal, as well as a first mixer connected with the first single antenna. The first mixer forms an intermediate-frequency first signal from the supplied first magnetic resonance signal. A second channel of the local coil has a second single antenna to acquire a second magnetic resonance signal, as well as a second mixer connected with the second single antenna. The second mixer forms an intermediate-frequency second signal from the supplied second magnetic resonance signal. The local coil has a device for signal combination that, by frequency multiplexing, that combines the intermediate-frequency first signal of the first channel and the intermediate-frequency second signal of the second channel so that it arrives at the receiver via the transmission path. The receiver has an A/D converter at which one of the transmitted intermediate-frequency signals of an associated channel arrives in order to be sampled with a sampling frequency for digitization. For frequency conversion, a first local oscillator frequency is connected at the first mixer and a second local oscillator frequency is connected at the second mixer. the first and second local oscillator frequencies are selected such that intermediate-frequencies formed by the frequency conversion are mirror-symmetrical relative to the sampling frequency of the A/D converter.

Abstract translation: 用于传输磁共振信号的装置，具有将本地线圈与接收器连接的传输链路，具有本地线圈的第一通道和第一单个天线以获取第一磁共振信号，以及与第 第一单天线。 第一混频器从所提供的第一磁共振信号形成中频第一信号。 本地线圈的第二通道具有用于获取第二磁共振信号的第二单个天线，以及与第二单个天线连接的第二混频器。 第二混频器从所提供的第二磁共振信号形成中频第二信号。 本地线圈具有用于信号组合的装置，通过频率复用，组合第一通道的中频第一信号和第二通道的中频第二信号，使得其经由传输路径到达接收器。 接收机具有A / D转换器，在该A / D转换器中，相关信道的所发送的中频信号中的一个到达，以便以用于数字化的采样频率进行采样。 对于频率转换，在第一混频器处连接第一本地振荡器频率，在第二混频器处连接第二本地振荡器频率。 选择第一和第二本地振荡器频率，使得由频率变换形成的中频相对于A / D转换器的采样频率是镜像对称的。

公开(公告)号：US07579835B2

公开(公告)日：2009-08-25

申请号：US11606162

申请日：2006-11-28

Applicant: Wilfried Schnell ,  Markus Vester

Inventor： Wilfried Schnell ,  Markus Vester

IPC: G01V3/00 ,  H01P7/08

CPC classification number: G01R33/34 ,  G01R33/341

Abstract: A resonator for magnetic resonance applications has a conductor element that extends from a first conductor end to a second conductor end. During operation of the conductor element at a resonance frequency, a resonance current-oscillates from the first conductor end to the second conductor end and back. The conductor ends are coupled with one another via a circuit that tunes the conductor element to the resonance frequency. The conductor element is fashioned as a multi-layer conductor with a number of layers that have first and second layer ends at the conductor ends. The circuit causes layer currents that are of equal magnitudes to flow in the layers themselves during active operation of the conductor element at the resonance frequency.

Abstract translation: 用于磁共振应用的谐振器具有从第一导体端延伸到第二导体端的导体元件。 在谐振频率下的导体元件的操作期间，谐振电流从第一导体端向第二导体末端和背面振荡。 导体端通过将导体元件调谐到谐振频率的电路相互耦合。 导体元件被形成为具有多个层的多层导体，其在导体端具有第一和第二层端。 该电路使得在谐振频率下在导体元件的有效操作期间，具有相等幅度的层电流在层本身中流动。

公开(公告)号：US07573036B2

公开(公告)日：2009-08-11

申请号：US11602211

申请日：2006-11-21

Applicant: Markus Vester

Inventor： Markus Vester

IPC: G01T1/20 ,  G01T1/164 ,  G01T1/166

CPC classification number: G01T1/1644 ,  A61B6/037 ,  G01T1/1647

Abstract: A method and an apparatus are disclosed for processing of detector signals, for example in nuclear-medical imaging. In at least one disclosed embodiment, the signals from N photodetectors are transmitted to a total of approximately M=ld(N) output lines, with the signals from the photodetectors each being weighted with +1 or −1 for the addition onto an output line.

Abstract translation: 公开了用于处理检测器信号的方法和装置，例如在核医学成像中。 在至少一个公开的实施例中，来自N个光电检测器的信号被传输到总共大约M = ld（N）个输出线，其中来自光电检测器的信号各自被加权为+1或-1，用于加到输出线上 。