公开(公告)号：US20070217412A1

公开(公告)日：2007-09-20

申请号：US11710709

申请日：2007-02-26

申请人： Ame Reykowski ,  Markus Vester

发明人： Ame Reykowski ,  Markus Vester

IPC分类号： H04L12/56

CPC分类号： H04L25/05

摘要： A feed circuit accepts a stream of digital payload data and inserts it at predetermined first positions into a stream of digital transmission data. The feed circuit generates supplementary digital data using the stream of digital payload data and inserts it at predetermined second positions into a stream of digital transmission data. The feed circuit feeds the digital transmission data into a transmission medium. Said circuit determines the supplementary digital data in such a way that at least one frequency's portion of a frequency spectrum of the stream of digital transmission data will be minimized.

摘要翻译： 馈电电路接受数字有效载荷数据流，并将其插入到预定的第一位置到数字传输数据流中。 馈电电路使用数字有效载荷数据流生成辅助数字数据，并将其插入到预定的第二位置到数字传输数据流中。 馈电电路将数字传输数据馈送到传输介质中。 所述电路以这样的方式确定辅助数字数据，使得数字传输数据流的频谱的至少一个频率部分将被最小化。

公开(公告)号：US20070085634A1

公开(公告)日：2007-04-19

申请号：US11540622

申请日：2006-09-29

申请人： Jian-Jun Du ,  Arne Reykowski ,  Markus Vester ,  Jian Wang

发明人： Jian-Jun Du ,  Arne Reykowski ,  Markus Vester ,  Jian Wang

IPC分类号： H01P7/00

CPC分类号： G01R33/3415 ,  G01R33/365

摘要： A coil arrangement for a magnetic resonance apparatus has a number of coil elements that are capable of being operated independently of one another and are situated around a common central area. Each coil element of the coil arrangement is capacitively or inductively decoupled from the coil elements of the coil arrangement that are immediately adjacent to this coil element. In the central area, there is situated a capacitor network that connects the coil elements of the coil arrangement to one another. The capacitor network is fashioned and dimensioned such that it at least reduces the coupling of each coil element of the coil arrangement to at least one additional coil element of the coil arrangement that is not immediately adjacent to the respective coil element.

摘要翻译： 用于磁共振装置的线圈装置具有能够彼此独立地操作并且位于公共中心区域周围的多个线圈元件。 线圈装置的每个线圈元件与线圈装置的线圈元件电容性地或电感地解耦，该线圈元件紧邻该线圈元件。 在中央区域中，设置有将线圈装置的线圈元件彼此连接的电容器网络。 电容器网络的形状和尺寸使得其至少将线圈装置的每个线圈元件的耦合减小到线圈装置的至少一个附加线圈元件，其不直接邻近相应的线圈元件。

公开(公告)号：US20060284096A1

公开(公告)日：2006-12-21

申请号：US11438208

申请日：2006-05-23

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

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

IPC分类号： G01T1/164

CPC分类号： G01T1/2985 ,  A61B6/037 ,  A61B6/507 ,  G01R33/481 ,  G01T1/1603

摘要： A method for determining positron emission measurement information in the context of positron emission tomography is disclosed. The method includes using a marker substance to carry out a positron emission measurement, in a body area of a subject to be examined, to determine positron emission measurement information, and at the same time, generating images of the body area to be examined by way of a second medical method with a time resolution suitable for determining perfusion and/or diffusion information. The method further includes using the images from the second method to determine perfusion and/or diffusion information for at least a part of the measurement period, and evaluating the positron emission measurement information as a function of the perfusion and/or diffusion information.

摘要翻译： 公开了一种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。 该方法包括使用标记物质进行待检查对象的身体区域中的正电子发射测定，以确定正电子发射测量信息，并且同时生成要检查的身体区域的图像 具有适合于确定灌注和/或扩散信息的时间分辨率的第二医疗方法。 该方法还包括使用来自第二方法的图像来确定至少部分测量周期的灌注和/或扩散信息，以及作为灌注和/或扩散信息的函数来评估正电子发射测量信息。

公开(公告)号：US20060251312A1

公开(公告)日：2006-11-09

申请号：US11395267

申请日：2006-07-03

申请人： Robert Krieg ,  Rainer Kuth ,  Ralf Ladebeck ,  Ralph Oppelt ,  Wolfgang Renz ,  Sebastian Schmidt ,  Markus Vester

发明人： Robert Krieg ,  Rainer Kuth ,  Ralf Ladebeck ,  Ralph Oppelt ,  Wolfgang Renz ,  Sebastian Schmidt ,  Markus Vester

IPC分类号： G01V3/00

CPC分类号： G01T1/1603 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5247 ,  G01R33/481 ,  G01T1/2985

摘要： Combined positron emission tomography and magnetic resonance tomography unit for imaging an examination object in an examination space, comprising a positron emission tomography unit that has a unit part assigned to the examination space, and a first evaluation unit for evaluating the electric signals for a positron emission tomography image of the examination object. The unit part in this case comprises a gamma ray detector with an assigned electronics unit. Furthermore, the combined unit comprises a magnetic resonance tomography unit and a second evaluation unit for evaluating the magnetic resonance signals for a magnetic resonance image of the examination object. The magnetic resonance unit in this case has a high frequency antenna device as well as a gradient coil system, the high frequency antenna device being arranged nearer to the examination space than the gradient coil system, as well as a high frequency shield arranged between the gradient coil system and the high frequency antenna device. The positron emission tomography unit part is arranged in this case between the high frequency shield and the high frequency antenna device, and is provided, at least on the side facing the high frequency antenna device, with a shielding cover that is caused by the high frequency antenna device and is opaque to high frequency radiation.

摘要翻译： 组合正电子发射断层摄影和磁共振断层摄影单元，用于对检查空间中的检查对象进行成像，包括具有分配给检查空间的单位部分的正电子发射断层摄影单元和用于评估正电子发射的电信号的第一评估单元 检查对象的断层扫描图像。 这种情况下的单元部分包括具有分配的电子单元的伽马射线检测器。 此外，组合单元包括磁共振断层摄影单元和用于评估检查对象的磁共振图像的磁共振信号的第二评估单元。 在这种情况下，磁共振单元具有高频天线装置以及梯度线圈系统，高频天线装置布置成比梯度线圈系统更靠近检查空间，以及布置在梯度之间的高频屏蔽 线圈系统和高频天线装置。 在这种情况下，正电子发射断层摄影单元部分布置在高频屏蔽和高频天线装置之间，并且至少在面向高频天线装置的一侧上设置有由高频天线装置引起的屏蔽罩 天线装置，对高频辐射是不透明的。

公开(公告)号：US20060038566A1

公开(公告)日：2006-02-23

申请号：US11208185

申请日：2005-08-18

申请人： Ralph Kimmlingen ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz ,  Markus Vester

发明人： Ralph Kimmlingen ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz ,  Markus Vester

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/385 ,  G01R33/422

摘要： A magnetic resonance apparatus has an RF antenna unit, a gradient coil unit and an RF shield, the conductor structures of which are independent of one another. The RF shield is arranged between the RF antenna unit and the gradient coil unit, a first RF field return volume is arranged between RF the antenna unit (1, 29, 55A, and the gradient coil unit, the RF field return volume closes RF magnetic field lines of the RF antenna unit and is bordered by the RF shield on the side of the gradient coil unit. The conductor structure of the gradient coil unit occupies a first region. A second conductor-free region is within the first region, on the side facing the RF antenna unit, between a primary gradient coil unit and a secondary shim gradient coil unit of the gradient coil unit. The second conductor-free region is at least partially surrounded by the conductor structure of the gradient coil unit and is fashioned as a second RF field return volume in connection with the first RF field return volume. The RF shield proceeds between the RF field return volumes and the conductor structure of the gradient coil unit. The RF antenna unit is closer to the data acquisition region of the magnetic resonance apparatus than the gradient coil unit.

摘要翻译： 磁共振装置具有RF天线单元，梯度线圈单元和RF屏蔽，其导体结构彼此独立。 RF屏蔽设置在RF天线单元和梯度线圈单元之间，RF天线单元（1,29,55A和梯度线圈单元之间）之间布置第一RF场返回音量，RF场返回音量关闭RF RF天线单元的磁场线，并且由梯形线圈单元侧的RF屏蔽界定，梯度线圈单元的导体结构占据第一区域，第二无导体区域在第一区域内，在 面向RF天线单元的一侧，梯度线圈单元的主梯度线圈单元和次级斜面梯形线圈单元之间，第二无导体区域至少部分地被梯度线圈单元的导体结构包围，并被形成 作为与第一RF场返回体积相关的第二RF场返回体积，RF屏蔽在RF场返回体积和梯度线圈单元的导体结构之间进行，RF天线单元更靠近 e数据采集区域比梯形线圈单元。

公开(公告)号：US06930482B2

公开(公告)日：2005-08-16

申请号：US10808959

申请日：2004-03-25

申请人： Oliver Heid ,  Markus Vester

发明人： Oliver Heid ,  Markus Vester

IPC分类号： G01R33/34 ,  G01R33/422 ,  G01V3/00

CPC分类号： G01R33/3415 ,  G01R33/34046 ,  G01R33/34076 ,  G01R33/422

摘要： A time-variable magnetic fields generator for a magnetic resonance apparatus has at least one gradient coil with conductors extending essentially in the region of a subject-receiving hollow opening of the magnetic resonance apparatus, and that is free of conductors in a middle axial region of the hollow opening, a first radio-frequency shield that encloses the conductors disposed on the one side of the middle region, a second radio-frequency shield that encloses the conductors disposed on the other side of the middle region, a radio-frequency antenna element that emits a radio-frequency field, disposed between the first and second radio-frequency shield in the middle region, a third radio-frequency shield proceeding radially, externally around the antenna element, such that the radio-frequency shields delimit a field return space within the generator and that is designed for a return of the radio-frequency field.

摘要翻译： 用于磁共振装置的时变磁场发生器具有至少一个梯形线圈，其具有基本上在磁共振装置的受试者接收中空开口的区域中延伸的导体，并且在中间轴向区域中没有导体 所述中空开口，包围设置在所述中间区域的一侧的所述导体的第一射频屏蔽体，包围设置在所述中间区域的另一侧的导体的第二射频屏蔽体，射频天线元件 其发射设置在中间区域中的第一和第二射频屏蔽之间的射频场，在天线元件周围径向地径向地进行的第三射频屏蔽，使得射频屏蔽限定场返回空间 并且被设计用于射频场的返回。

公开(公告)号：US20050162167A1

公开(公告)日：2005-07-28

申请号：US11039594

申请日：2005-01-20

申请人： Oliver Heid ,  Markus Vester

发明人： Oliver Heid ,  Markus Vester

IPC分类号： G01R33/34 ,  G01R33/38 ,  G01R33/421 ,  G01R33/422 ,  G01V3/00

CPC分类号： G01R33/3806 ,  G01R33/34046 ,  G01R33/385 ,  G01R33/4215 ,  G01R33/422

摘要： A generator (13A, . . . 13C) of a time-variable magnetic field (B1) of a magnetic resonance device (1) which has an examination space (9,9A) for accommodating at least one area to be examined of an examination subject (7), in which examination area the time-variable magnetic field (B1) is generated by means of a current through a conductor (15, 19, 31). The magnetic field lines (23) of the magnetic field (B1) close with the aid of a field flux return space (17), in which there is arranged at least one sub-assembly (27) which has magnetizable material. A reduction of a magnetic energy density in the field flux return space (17) is produced by this means. This increases e.g. the efficiency i n the generation of high-frequency magnetic fields (B1) or of gradient fields with the aid of the conductor (15,19,31).

摘要翻译： 一种具有用于容纳至少一个区域的检查空间（9,9A）的磁共振装置（1）的时变磁场（B 1）的发生器（13A，... 13C） 检查检查对象（7），其中检查区域通过通过导体（15,19,31）的电流产生时变磁场（B 1）。 磁场（B 1）的磁场线（23）借助于场磁通返回空间（17）而闭合，其中布置有至少一个具有可磁化材料的子组件（27）。 通过这种方式产生场磁通返回空间（17）中的磁能密度的降低。 这增加例如 借助于导体（15,19,31）产生高频磁场（B 1）或梯度场的效率。

公开(公告)号：US06864747B1

公开(公告)日：2005-03-08

申请号：US09958717

申请日：2000-04-04

申请人： Ralph Oppelt ,  Markus Vester

发明人： Ralph Oppelt ,  Markus Vester

IPC分类号： H03F1/34 ,  H03F1/30 ,  H03F1/32 ,  H03F3/18 ,  H03F3/26 ,  H03G3/10

CPC分类号： H03F1/307 ,  H03F1/3217

摘要： A device for amplifying an input signal comprising a semiconductor unit having at least one semiconductor component, and circuit for setting an operating point of the semiconductor unit. The circuit is designed such that during amplification of the input signal, an operating point of the semiconductor unit can be varied automatically and independently for a measured value, in accordance with a predetermined profile of a maximum possible signal amplitude of the input signal between a distortion-optimized setting, for high maximum possible signal amplitude and a noise-optimized setting for a low maximum possible signal amplitude.

摘要翻译： 一种用于放大输入信号的装置，包括具有至少一个半导体部件的半导体单元和用于设定半导体单元的工作点的电路。 该电路被设计成使得在输入信号的放大期间，半导体单元的工作点可以针对测量值而自动且独立地改变，根据输入信号的最大可能信号幅度的预定曲线 优化的设置，用于最大可能的最大信号幅度和噪声优化设置，用于低最大可能的信号幅度。

公开(公告)号：US20050030031A1

公开(公告)日：2005-02-10

申请号：US10910893

申请日：2004-08-04

申请人： Jurgen Nistler ,  Stefan Stocker ,  Markus Vester

发明人： Jurgen Nistler ,  Stefan Stocker ,  Markus Vester

IPC分类号： G01R33/385 ,  G01R33/422 ,  G01V3/00

CPC分类号： G01R33/422 ,  G01R33/3854

摘要： A magnetic resonance apparatus with a hollow interior and with a gradient coil system disposed in the hollow interior, wherein the hollow interior exhibits a barrel-like bulge, the gradient coil system is essentially enclosed by a radio-frequency shield, and he radio-frequency shield is fashioned free of a slotting in regions in which it, with regard to a boundary of the hollow interior is at a shorter distance compared with a middle region of the bulge.

摘要翻译： 具有中空内部并具有设置在中空内部的梯度线圈系统的磁共振装置，其中中空内表面呈筒状凸起，该梯度线圈系统基本上被射频屏蔽封闭，并且其射频 在与凸起的中间区域相比，中空内部的边界处于较短距离的区域中，护罩被制成没有开槽。

公开(公告)号：US06842003B2

公开(公告)日：2005-01-11

申请号：US10394925

申请日：2003-03-21

申请人： Oliver Heid ,  Markus Vester

发明人： Oliver Heid ,  Markus Vester

IPC分类号： A61B5/055 ,  G01R33/34 ,  G01V3/00

CPC分类号： G01R33/34046

摘要： A radio-frequency antenna has two end rings and a number of antenna rods that form a birdcage resonator. A coupling element couples high-frequency electromagnetic energy into the resonator in the transmission mode and out therefrom in the reception mode. The coupling element is fashioned as a conductor system tangentially surrounding the resonator and into which a high-frequency systems of currents can be fed in the transmission mode or from which a high-frequency system of currents can be fed out in the reception case. The coupling element is coupled only inductively to the resonator.

摘要翻译： 射频天线具有两个端环和多个形成鸟笼谐振器的天线杆。 耦合元件在传输模式下将高频电磁能耦合到谐振器中，并在接收模式下耦合。 耦合元件被形成为切向围绕谐振器的导体系统，并且可以在传输模式中馈送高频系统的电流，或者可以在接收情况下从其中馈送高频电流系统。 耦合元件仅感应耦合到谐振器。