公开(公告)号：US10082548B2

公开(公告)日：2018-09-25

申请号：US14645215

申请日：2015-03-11

申请人： Holger Adolf ,  Rudi Baumgartl ,  Nikolaus Demharter ,  Jörg Ulrich Fontius ,  Rene Gumbrecht

发明人： Holger Adolf ,  Rudi Baumgartl ,  Nikolaus Demharter ,  Jörg Ulrich Fontius ,  Rene Gumbrecht

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

CPC分类号： G01R33/3607 ,  G01R33/3415 ,  G01R33/5612

摘要： A circuit arrangement for driving a transmission coil arrangement with at least two individual transmission coils of a magnetic resonance system for supplying a radiofrequency signal for producing alternating electromagnetic fields over at least two channels, with in each case a digital section and an analog section, is provided. In the digital section, in an envelope generator, base frequency signals that respectively generate an envelope are provided. The circuit arrangement also includes an intermediate frequency oscillator that generates a common intermediate frequency, a frequency mixer per channel for mixing the common intermediate frequency into the base frequency signals, and in the analog sections of the channels, respectively, second frequency mixers that mix a common radiofrequency signal into each base frequency signal. The envelope is transmitted, with the mixed-in intermediate frequency signal, and the total signal thus obtained is respectively conducted to an individual transmission coil via a respective amplifier.

公开(公告)号：US08521258B2

公开(公告)日：2013-08-27

申请号：US12386327

申请日：2009-04-16

申请人： Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Ernst Mustafa ,  Jürgen Röβler

发明人： Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Ernst Mustafa ,  Jürgen Röβler

IPC分类号： A61B5/00

CPC分类号： A61B5/0402 ,  A61B5/055 ,  A61B5/7285 ,  A61B2560/0223 ,  G01R33/5673

摘要： The invention relates to a correction method for correcting interference due to gradient injections in ECG signal data records recorded in a magnetic resonance device by an ECG measuring device. A first correction data record is determined with the ECG measuring device located in a first position. A second correction data record is determined by the ECG measuring device located in a second position. An ECG signal data record is measured by the ECG measuring device located in a defined position. A modified correction data record is defined as a function of the first correction data record and the second correction data record and the first and second position and the defined position of the ECG measuring device. The ECG signal data record is corrected based on the modified correction data record.

公开(公告)号：US08324896B2

公开(公告)日：2012-12-04

申请号：US12862944

申请日：2010-08-25

申请人： Rudi Baumgartl ,  Nikolaus Demharter ,  Philipp Hoecht ,  Wilfried Schnell

发明人： Rudi Baumgartl ,  Nikolaus Demharter ,  Philipp Hoecht ,  Wilfried Schnell

IPC分类号： G01V3/00

CPC分类号： G01R33/5612

摘要： Optimized transmission system for an MRT is achieved by a device and a method to generate transmission signals (29) via multiple transmission units of a transmission system for a magnetic resonance tomography system, wherein transmission data are respectively received from the transmission units via a transmission data input, received transmission data are stored in transmission data memory elements of the transmission units, transmission signals representing stored transmission data are generated with transmission data (stored in transmission data memory elements) by transmission signal transmission units of the transmission units, and the generation of transmission signals proceeds simultaneously via the transmission signal transmission units.

摘要翻译： 通过用于磁共振断层摄影系统的传输系统的多个传输单元产生传输信号（29）的装置和方法来实现用于MRT的优化传输系统，其中通过传输数据分别从传输单元接收传输数据 输入，接收的发送数据被存储在发送单元的发送数据存储单元中，表示存储的发送数据的发送信号通过发送单元的发送信号发送单元的发送数据（存储在发送数据存储单元中）生成， 传输信号经由传输信号传输单元同时进行。

公开(公告)号：US07822243B2

公开(公告)日：2010-10-26

申请号：US11446389

申请日：2006-06-02

申请人： Nikolaus Demharter

发明人： Nikolaus Demharter

IPC分类号： G06K9/00

CPC分类号： G01R33/5608

摘要： In a method and processing device for image reconstruction from raw data acquired with a medical imaging examination apparatus, in particular from data of magnetic resonance tomography, an algorithm to be used for the image reconstruction is loaded into at least one reprogrammable FPGA, the reprogrammable FPGA, accesses via a data connection, the acquired raw data as well as calculation parameters provided for the image reconstruction and reconstruction image data are calculated from the raw data by the FPGA, dependent on the calculation parameters.

摘要翻译： 在用于用医学成像检查装置获取的原始数据进行图像重建的方法和处理装置中，特别是从磁共振断层摄影的数据中，将用于图像重构的算法加载到至少一个可重新编程的FPGA中，可编程FPGA 通过数据连接访问，获取的原始数据以及为图像重构和重建图像数据提供的计算参数由FPGA根据原始数据计算，取决于计算参数。

公开(公告)号：US20100134198A1

公开(公告)日：2010-06-03

申请号：US12530812

申请日：2008-03-14

申请人： Nikolaus Demharter ,  Philipp Höcht

发明人： Nikolaus Demharter ,  Philipp Höcht

IPC分类号： H03C1/00

CPC分类号： H03C1/02

摘要： In a method for the production of a radio-frequency signal modulated as a function of a low-frequency digital data stream, a clock signal is provided having a frequency that is at least four times as high as the frequency of the radio-frequency signal to be produced. The clock signal is used for mixing the low-frequency data stream with a cyclical numeric sequence representing a continuous sinusoidal or co-sinusoidal series. A circuit arrangement implements such a method to produce a radio-frequency signal modulated as a function of a low-frequency digital data stream, and a magnetic resonance tomography system employs such a circuit arrangement.

摘要翻译： 在制造作为低频数字数据流的函数调制的射频信号的方法中，提供具有至少是射频信号的频率的四倍的频率的时钟信号 要生产。 时钟信号用于将低频数据流与表示连续正弦或共正弦系列的循环数字序列混合。 电路装置实现这样一种方法来产生作为低频数字数据流的函数调制的射频信号，并且磁共振断层摄影系统采用这种电路装置。

公开(公告)号：US20090319192A1

公开(公告)日：2009-12-24

申请号：US12487033

申请日：2009-06-18

申请人： Frank Bergner ,  Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Jurgen Rossler

发明人： Frank Bergner ,  Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Jurgen Rossler

IPC分类号： G06F19/00 ,  G06F15/00

CPC分类号： A61B5/0428 ,  A61B5/0008 ,  A61B5/024 ,  A61B5/055 ,  A61B5/1135 ,  A61B5/7285 ,  A61B2560/045 ,  A61B2562/08

摘要： A measurement facility comprises at least one sensor unit for measurement and issuing of signals and a further processing unit for receiving and further processing of signals which were measured by the at least one sensor unit, with an interface for detachable connection of the further processing unit to different sensor units. A further processing unit comprises at least one interface for establishing a detachable connection to a sensor unit, in order to form a usable inventive measurement facility. A sensor unit comprises a connection point for establishing the detachable connection to the further processing unit.

摘要翻译： 测量设备包括用于测量和发出信号的至少一个传感器单元和用于接收和进一步处理由至少一个传感器单元测量的信号的另外的处理单元，其具有用于将另外的处理单元可拆卸地连接到 不同的传感器单元。 另外的处理单元包括用于建立到传感器单元的可拆卸连接的至少一个接口，以形成可用的本发明测量设备。 传感器单元包括用于建立到另外的处理单元的可拆卸连接的连接点。

公开(公告)号：US20090318821A1

公开(公告)日：2009-12-24

申请号：US12482710

申请日：2009-06-11

申请人： Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Jurgen RoBler

发明人： Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Jurgen RoBler

IPC分类号： A61B5/0402 ,  G06F19/00

CPC分类号： G01R33/5673 ,  A61B5/04017 ,  A61B5/0424 ,  A61B5/0456 ,  A61B5/055 ,  A61B5/7203 ,  A61B5/7285

摘要： The invention relates to a method for checking ECG signals measured by an ECG measuring device having at least three electrodes for the presence of interference errors. At least three voltages are measured on a closed circulation path across the electrodes of the ECG measuring device. A monitoring value is calculated from the three measured voltages. A presence of an error is checked by determining a deviation of the monitoring value from a reference value. An error signal is outputted if an error is presented. The ECG measuring device has a further processing unit for processing voltage signals between a different pair of electrodes and a monitoring unit for calculating the monitoring value.

摘要翻译： 本发明涉及一种用于检查由具有至少三个电极的ECG测量装置测量的ECG信号用于存在干扰误差的方法。 在ECG测量装置的电极上的闭合循环路径上测量至少三个电压。 根据三个测量电压计算监测值。 通过确定监测值与参考值的偏差来检查是否存在错误。 如果出现错误，则输出错误信号。 ECG测量装置具有用于处理不同对电极之间的电压信号的另外的处理单元和用于计算监视值的监视单元。

公开(公告)号：US20090287104A1

公开(公告)日：2009-11-19

申请号：US12437153

申请日：2009-05-07

申请人： Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Jurgen Rossler

发明人： Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Jurgen Rossler

IPC分类号： A61B5/0402

CPC分类号： A61B5/0408 ,  A61B5/061 ,  A61B5/063

摘要： A method for monitoring a contacting of electrodes of an ECG measuring devices is provided. At least three signals each from a first and a second input signal are generated. The first and the second input signal emanate from different electrodes and each electrode supplies one of the input signals to at least two of the signals generated by a first signal processing unit. The three signals are compared with a reference value. Inadequately contacted electrodes are identified based on the comparisons and are displayed. A monitoring device for implementing the method is provided. The monitoring device comprises a first signal processing unit connected to the electrodes at an input side, a second signal processing unit for identifying the inadequately contacted electrodes by receiving and processing at least three signals generated by the first signal processing unit, and a display unit for displaying the inadequately contacted electrodes.

摘要翻译： 提供了一种用于监测ECG测量装置的电极的接触的方法。 产生每个来自第一和第二输入信号的至少三个信号。 第一和第二输入信号从不同的电极发出，并且每个电极将输入信号之一提供给由第一信号处理单元产生的至少两个信号。 将三个信号与参考值进行比较。 基于比较来识别接触不良的电极，并显示。 提供了一种用于实现该方法的监视装置。 监视装置包括在输入侧连接到电极的第一信号处理单元，用于通过接收和处理由第一信号处理单元生成的至少三个信号来识别接触不良的电极的第二信号处理单元，以及用于 显示接触不良的电极。

公开(公告)号：US20090270715A1

公开(公告)日：2009-10-29

申请号：US12386327

申请日：2009-04-16

申请人： Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Ernst Mustafa ,  Jurgen Rossler

发明人： Nikolaus Demharter ,  Michael Frank ,  Sven Heggen ,  Ernst Mustafa ,  Jurgen Rossler

IPC分类号： A61B5/0402 ,  A61B5/055

CPC分类号： A61B5/0402 ,  A61B5/055 ,  A61B5/7285 ,  A61B2560/0223 ,  G01R33/5673

摘要： The invention relates to a correction method for correcting interference due to gradient injections in ECG signal data records recorded in a magnetic resonance device by an ECG measuring device. A first correction data record is determined with the ECG measuring device located in a first position. A second correction data record is determined by the ECG measuring device located in a second position. An ECG signal data record is measured by the ECG measuring device located in a defined position. A modified correction data record is defined as a function of the first correction data record and the second correction data record and the first and second position and the defined position of the ECG measuring device. The ECG signal data record is corrected based on the modified correction data record.

摘要翻译： 本发明涉及一种用于校正由ECG测量装置记录在磁共振装置中的ECG信号数据记录中由于梯度注入引起的干扰的校正方法。 第一校正数据记录由位于第一位置的ECG测量装置确定。 第二校正数据记录由位于第二位置的ECG测量装置确定。 ECG信号数据记录由位于定义位置的ECG测量装置测量。 经修改的校正数据记录被定义为第一校正数据记录和第二校正数据记录以及ECG测量装置的第一和第二位置和确定位置的函数。 基于经修改的校正数据记录校正ECG信号数据记录。

公开(公告)号：US07477057B2

公开(公告)日：2009-01-13

申请号：US11936173

申请日：2007-11-07

申请人： Rudi Baumgartl ,  Nikolaus Demharter ,  Georg Pirkl

发明人： Rudi Baumgartl ,  Nikolaus Demharter ,  Georg Pirkl

IPC分类号： G01V3/00

CPC分类号： G01R33/36 ,  G05B15/02

摘要： A magnetic resonance system has components that include a magnetic field generation unit for generation of a basic magnetic field, gradient coils for generation of a field gradient as well as a radio-frequency coil arrangement with a number of radio-frequency coils for transmission and reception of radio-frequency signals. These components can respectively be activated according to a sequence via at least one digital module and at least one analog module. The analog modules are arranged externally to a control computer controlling the digital modules. The digital modules also are arranged externally to the control computer and are associated with the analog module or modules controlled by said digital modules. A data network is provided for communication between the digital modules and the control computer and a synchronous network is provided for synchronization of the digital modules and the control computer.

摘要翻译： 磁共振系统具有包括用于产生基本磁场的磁场产生单元，用于产生场梯度的梯度线圈以及具有用于发送和接收的多个射频线圈的射频线圈装置 的射频信号。 可以分别通过至少一个数字模块和至少一个模拟模块根据序列来激活这些组件。 模拟模块被布置在控制数字模块的控制计算机的外部。 数字模块还被布置在控制计算机的外部，并且与由所述数字模块控制的模拟模块或模块相关联。 提供数据网络用于数字模块和控制计算机之间的通信，并且提供用于数字模块和控制计算机的同步的同步网络。