公开(公告)号：US07323874B2

公开(公告)日：2008-01-29

申请号：US11395251

申请日：2006-04-03

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： G01R33/481 ,  G01T1/1603

摘要： A positron emission tomography unit (PET), having a unit part assigned to an examination space and a first evaluation unit, is combined with a magnetic resonance tomography unit (MRT). The unit part of the PRT includes at least two gamma ray detector units with in each case an assigned electronics unit. The MRT includes a second evaluation unit, a gradient coil system and a high frequency antenna device formed as a stripline antenna device having at least two conductors. The high frequency antenna device is arranged nearer to the examination space than the gradient coil system with a high frequency shield between the gradient coil system and the high frequency antenna device. Each conductor of the stripline antenna device respectively includes a gamma ray detector unit with an assigned electronics unit. The conductors of the stripline antenna device are configured for the respective gamma ray detector units and their assigned electronics units as shielding covers that are caused by the high frequency antenna device and are opaque to high frequency radiation. An examination object in the examination space can be imaged by the combined positron emission tomography and magnetic resonance tomography unit.

摘要翻译： 将具有分配给检查空间的单位部分和第一评估单元的正电子发射断层摄影单元（PET）与磁共振断层摄影单元（MRT）组合。 PRT的单位部分包括至少两个伽马射线检测器单元，在每种情况下都是分配的电子单元。 MRT包括第二评估单元，梯度线圈系统和形成为具有至少两个导体的带状线天线装置的高频天线装置。 高频天线装置布置成比梯度线圈系统和高频天线装置之间具有高频屏蔽的梯度线圈系统更靠近检查空间。 带状线天线装置的每个导体分别包括具有分配的电子单元的伽马射线检测器单元。 带状线天线装置的导体被配置用于相应的伽马射线检测器单元及其分配的电子单元作为由高频天线装置引起并且对高频辐射不透明的屏蔽盖。 检查空间中的检查对象可以通过组合的正电子发射断层摄影和磁共振断层摄影单元成像。

公开(公告)号：US07239141B2

公开(公告)日：2007-07-03

申请号：US11340216

申请日：2006-01-26

申请人： Jürgen Nistler ,  Wolfgang Renz

发明人： Jürgen Nistler ,  Wolfgang Renz

IPC分类号： G01V3/00

CPC分类号： A61B5/055 ,  G01R33/34007 ,  G01R33/34046 ,  G01R33/3628 ,  G01R33/385

摘要： A magnetic resonance apparatus has an integrated gradient and radio frequency coil unit that includes at least one antenna rod with a conductor and a gradient coil unit. At least one electrical connection exists between the conductor and an electrical contact region arranged at an adjoining region of the gradient coil unit. The electrical connection is formed by a flexible circuit board that is electrically connected both with the conductor and with the contact region. Such an electrical connection of the antenna rod is insensitive to strong vibrations.

摘要翻译： 磁共振装置具有集成的梯度和射频线圈单元，其包括至少一个具有导体的天线杆和梯度线圈单元。 在导体与布置在梯度线圈单元的相邻区域的电接触区域之间至少存在一个电连接。 电连接由与导体和接触区域电连接的柔性电路板形成。 天线杆的这种电气连接对强烈的振动是不敏感的。

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：US07053620B2

公开(公告)日：2006-05-30

申请号：US10859377

申请日：2004-06-02

申请人： Wolfgang Renz

发明人： Wolfgang Renz

IPC分类号： G01V3/00

CPC分类号： G01R33/341

摘要： A magnetic resonance system has a transport element and an examination tunnel with an inner tunnel contour and a tunnel axis. An examination subject can be inserted into the examination tunnel in the direction of the tunnel axis by means of the transport element. At least one local coil that exhibits an outer coil contour (viewed in cross-section relative to the tunnel axis) and that can be pivoted around a base pivot axle, so as to be adjusted to the examination subject, is disposed in the examination tunnel. The base pivot axle is disposed at the edge of the examination tunnel and runs parallel to the tunnel axis.

摘要翻译： 磁共振系统具有传输元件和具有内隧道轮廓和隧道轴线的检查隧道。 检查对象可以通过运输元件沿隧道轴线的方向插入检查隧道。 至少一个局部线圈呈现外部线圈轮廓（在相对于隧道轴线的横截面中看）并且可围绕基座枢轴枢转以便被调整到检查对象，被设置在检查通道中 。 基座枢轴设置在检查通道的边缘并平行于隧道轴线延伸。

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：US07002347B2

公开(公告)日：2006-02-21

申请号：US10953303

申请日：2004-09-29

申请人： Thorsten Feiweier ,  Razvan Lazar ,  Wolfgang Renz ,  Lothar Schön

发明人： Thorsten Feiweier ,  Razvan Lazar ,  Wolfgang Renz ,  Lothar Schön

IPC分类号： G01V3/00

CPC分类号： G01R33/341

摘要： A local coil unit for a magnetic resonance apparatus, which radiates a radio-frequency field into an examination subject, has a housing and at least a part of the housing is formed of an insulating dielectric material that passively compensates for an inhomogeneity in the high-frequency field in the subject. The material has a relative dielectric value εr of greater than 50, preferably greater than 100, and a dielectric loss factor tan δ of less than 2.5×10−2, preferably less than 1×10−3. In the dielectric material displacement currents are generated which create an additional magnetic field that compensates for the minima in the B1 field as a result of the eddy currents arising in the patient due to the radio-frequency radiation.

摘要翻译： 用于将射频场辐射到检查对象中的磁共振设备的局部线圈单元具有壳体，并且壳体的至少一部分由绝缘电介质材料形成，被动地补偿高频场中的不均匀性， 频率场。 该材料具有大于50，优选大于100的相对电介质值εL r以及低于2.5×10 -2的介电损耗因子tanδ，优​​选地较小 超过1×10 -3 -3。 在电介质材料中，产生位移电流，其产生额外的磁场，其由于射频辐射而在患者体内产生的涡流的结果来补偿B1场中的最小值。

公开(公告)号：US20050258832A1

公开(公告)日：2005-11-24

申请号：US11126458

申请日：2005-05-11

申请人： Eva Eberlein ,  Matthias Gebhardt ,  Wolfgang Renz

发明人： Eva Eberlein ,  Matthias Gebhardt ,  Wolfgang Renz

IPC分类号： G01R33/34 ,  G01R33/385 ,  G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/385

摘要： A generator of time-variable magnetic fields generator for a magnetic resonance apparatus has a primary gradient coil unit for generating of a gradient magnetic field in an examination region of the magnetic resonance apparatus. The primary gradient coil unit, for accommodating at least one gradient coil conductor, has a central region, an outer region and at least one connecting region connecting the two regions. The outer region surrounds the central region. At least one intervening space is disposed between the central region and the outer region. The intervening space is free of the gradient coil conductors of the primary gradient coil unit and a radio frequency antenna element is disposed therein. Such a generator enables an effective gradient field and RF field generation in a compact design combining a gradient coil and a radio-frequency antenna.

摘要翻译： 用于磁共振装置的时变磁场发生器的发生器具有用于在磁共振装置的检查区域中产生梯度磁场的初级梯度线圈单元。 用于容纳至少一个梯度线圈导体的主梯度线圈单元具有中心区域，外部区域和连接两个区域的至少一个连接区域。 外部区域围绕中心区域。 在中心区域和外部区域之间设置至少一个中间空间。 中间空间没有主梯度线圈单元的梯度线圈导体，并且射频天线元件设置在其中。 这种发生器能够在结合梯度线圈和射频天线的紧凑设计中实现有效的梯度场和RF场产生。

公开(公告)号：US20050162166A1

公开(公告)日：2005-07-28

申请号：US10993318

申请日：2004-11-19

申请人： Matthias Gebhardt ,  Wolfgang Renz

发明人： Matthias Gebhardt ,  Wolfgang Renz

IPC分类号： G01R33/34 ,  G01R33/385 ,  G01V3/00

CPC分类号： G01R33/385 ,  G01R33/34 ,  G01R33/3856

摘要： A gradient coil radio-frequency antenna unit for a magnetic resonance apparatus has a radio-frequency antenna and a plate-shaped gradient coil unit to generate a gradient magnetic field in an examination region of the magnetic resonance apparatus. The gradient coil unit is surrounded by a conductor of the radio-frequency antenna. The windings of the gradient coil unit thus lie completely within the conductor of the RF antenna.

摘要翻译： 用于磁共振装置的梯度线圈射频天线单元具有射频天线和板状梯度线圈单元，以在磁共振装置的检查区域中产生梯度磁场。 梯度线圈单元由射频天线的导体包围。 因此，梯度线圈单元的绕组完全位于RF天线的导体内。

公开(公告)号：US06844730B2

公开(公告)日：2005-01-18

申请号：US10262330

申请日：2002-10-01

申请人： Peter Feld ,  Wolfgang Renz

发明人： Peter Feld ,  Wolfgang Renz

IPC分类号： G01R33/36 ,  G01V3/00

CPC分类号： G01R33/3621 ,  G01R33/3415

摘要： A coil arrangement for a magnetic resonance system has a resonator that is followed by a modulator with which a magnetic resonance signal of the resonator is modulated onto a carrier frequency. An infeed element follows the modulator with which that magnetic resonance signal modulated onto the carrier frequency is supplied into a single transmission cable. In a corresponding reception circuit, an analog-to-digital converter is preceded by a demodulator with which the magnetic resonance signal is demodulated.

摘要翻译： 用于磁共振系统的线圈装置具有谐振器，其后面是谐振器的磁共振信号被调制到载波频率上的调制器。 进给元件跟随调制器，调制到载波频率上的磁共振信号被提供给单个传输电缆。 在对应的接收电路中，模数转换器之前是解调器，其中磁共振信号被解调。

公开(公告)号：US06404200B1

公开(公告)日：2002-06-11

申请号：US09649497

申请日：2000-08-28

申请人： Peter Dietz ,  Matthias Gebhardt ,  Wolfgang Renz

发明人： Peter Dietz ,  Matthias Gebhardt ,  Wolfgang Renz

IPC分类号： G01V300

CPC分类号： G01R33/3854

摘要： A magnetic resonance tomography apparatus has a basic field magnet system and a gradient coil system. At least a part of a vacuum housing of an evacuatable space is thereby formed by at least a surface region of the basic field magnet system and by at least a surface region of the gradient coil system. Propagation of oscillations (vibrations) of the gradient coil system to the basic field magnet system via an intermediate layer between those surfaces of the gradient coil system and of the basic field magnet system that face each other is prevented by a vacuum in the evacuatable space. In economical and space-saving fashion, the vacuum housing of the evacuatable space is formed to a large part by systems that are already needed for the operation of the apparatus.

摘要翻译： 磁共振断层摄影装置具有基本场磁体系统和梯度线圈系统。 至少一部分可抽出空间的真空壳体由至少基本磁场磁体系统的表面区域和至少梯度线圈系统的表面区域形成。 梯度线圈系统的振荡（振动）通过梯形线圈系统和基本场磁体系统的这些表面之间的中间层在基本场磁体系统中的可再生空间中的真空被预防。 以节约和节省空间的方式，可抽出空间的真空壳体由设备操作已经需要的系统大部分形成。