公开(公告)号：US20050127914A1

公开(公告)日：2005-06-16

申请号：US10810364

申请日：2004-03-26

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Gunther Zebelein

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Gunther Zebelein

IPC分类号： G01R33/34 ,  G01R33/36 ,  G01V3/00

CPC分类号： G01R33/3657 ,  G01R33/34046

摘要： A magnetic resonance antenna has longitudinal antenna rods in a birdcage structure, and antenna ferrules connecting the longitudinal antenna rods at their ends in terms of radio-frequency. The magnetic resonance antenna has a number of radio-frequency switching elements that interrupt, in terms of radio-frequency, at least one part of the longitudinal antenna rod to detune the eigen-resonance frequency of the antenna with respect to an operating magnetic resonance frequency. For this purpose, the magnetic resonance antenna is provided with two switching lines, directed to the radio-frequency switching elements from outside of the birdcage structure, the switching lines having a ring line connected thereto running annularly on or in the birdcage structure and transverse to the longitudinal antenna rods.

摘要翻译： 磁共振天线具有鸟笼结构中的纵向天线杆，以及在射频方面连接纵向天线杆的端部处的天线插芯。 磁共振天线具有多个射频切换元件，其以射频方式中断纵向天线杆的至少一部分，以相对于工作磁共振频率去除天线的本征谐振频率 。 为此，磁共振天线设置有从鸟笼结构的外部引向射频开关元件的两条开关线，开关线具有连接到其上的环形线环绕在鸟笼结构上或在鸟笼结构中并横向于 纵向天线杆。

公开(公告)号：US20090206836A1

公开(公告)日：2009-08-20

申请号：US11902584

申请日：2007-09-24

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

IPC分类号： G01R33/20 ,  G01T1/166 ,  G01R33/44

CPC分类号： G01R33/28 ,  A61B5/0035 ,  A61B5/055 ,  G01R33/481 ,  G01T1/1603

摘要： A detection unit is disclosed for arrangement in the main magnet of an MR device, which has both an RF transceiver system and a PET detector. In at least one embodiment the RF transceiver system is divided into two parts and the two parts are arranged upstream and downstream of the PET detector in the longitudinal direction of the patient tunnel. The RF transceiver system and PET detector are applied to the same image volume. In at least one other embodiment, an MR device is equipped with the detection unit, and in at least one other embodiment, a method operates the detection unit.

摘要翻译： 公开了用于布置在MR设备的主磁体中的检测单元，其具有RF收发器系统和PET检测器。 在至少一个实施例中，RF收发器系统被分成两部分，并且两个部分被布置在患者隧道的纵向上的PET检测器的上游和下游。 RF收发器系统和PET检测器应用于相同的图像体积。 在至少另一个实施例中，MR装置配备有检测单元，并且在至少一个其它实施例中，一种方法操作检测单元。

公开(公告)号：US20080139924A1

公开(公告)日：2008-06-12

申请号：US11984479

申请日：2007-11-19

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

IPC分类号： A61B5/055

CPC分类号： G01R33/28 ,  A61B5/0035 ,  A61B5/055 ,  A61B6/037 ,  G01R33/481 ,  G01T1/1603

摘要： A device for superposed magnetic resonance tomography and positron emission tomography imaging is disclosed. In at least one embodiment, the device includes a magnetic resonance tomography magnet, which defines a longitudinal axis; a magnetic resonance tomography gradient coil, arranged radially within the magnetic resonance tomography magnet; a magnetic resonance tomography RF coil, arranged radially within the magnetic resonance tomography gradient coil; and a multiplicity of positron emission tomography detection units, arranged in pairs lying opposite to one another about the longitudinal axis. In at least one embodiment, the many positron emission tomography detection units are arranged radially within the magnetic resonance tomography gradient coil and are arranged along the longitudinal axis next to the magnetic resonance tomography RF coil.

摘要翻译： 公开了用于叠加磁共振断层扫描和正电子发射断层摄影成像的装置。 在至少一个实施例中，该装置包括限定纵轴的磁共振断层摄影磁体; 磁共振断层摄影梯度线圈，位于磁共振断层摄影磁体内; 磁共振断层摄影RF线圈，径向设置在磁共振断层扫描梯度线圈内; 以及多个正电子发射断层摄影检测单元，成对地布置成围绕纵向轴线彼此相对。 在至少一个实施例中，许多正电子发射断层摄影检测单元径向布置在磁共振断层扫描梯度线圈内，并且沿着纵向轴线布置在磁共振断层摄影RF线圈旁边。

公开(公告)号：US20080068017A1

公开(公告)日：2008-03-20

申请号：US11882928

申请日：2007-08-07

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz

IPC分类号： G01R33/32

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

摘要： Detection unit is disclosed for arrangement inside a cylindrical patient receptacle of a magnetic resonance apparatus. In at least one embodiment, the detection unit includes an annular PET detector arrangement with PET detector blocks, and a radiofrequency coil arrangement, arranged coaxially inside the PET detector arrangement and including longitudinal conductors, the longitudinal conductors being guided at least in sections along interspaces between mutually spaced apart detector blocks.

摘要翻译： 公开了用于布置在磁共振装置的圆柱形患者容器内的检测单元。 在至少一个实施例中，检测单元包括具有PET检测器块的环形PET检测器装置和同轴地布置在PET检测器装置内并包括纵向导体的射频线圈装置，纵向导体至少沿着 相互间隔开的检测器块。

公开(公告)号：US20080088309A1

公开(公告)日：2008-04-17

申请号：US11905250

申请日：2007-09-28

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jurgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

IPC分类号： G01R33/34

CPC分类号： G01R33/3415 ,  G01R33/481

摘要： An RF antenna arrangement of a combined MR/PET system is disclosed. In at least one embodiment, the RF antenna arrangement includes a first part installed in the examination tunnel in a fashion fixed to the system such that it is arranged underneath the couch board when the latter is introduced, and a second part, which can be placed onto the couch board and be introduced into and withdrawn from the examination tunnel together with the couch board. In at least one embodiment, the second part is of dimensionally stable design and has a clear cross section that is adapted to the object to be examined. Consequently, the time outlay for applying the RF antenna is reduced, and the fixed position of the RF antenna enables a correction of the attenuation of gamma rays. Furthermore, a number of second parts having various diameters can be provided.

摘要翻译： 公开了一种组合MR / PET系统的RF天线装置。 在至少一个实施例中，RF天线布置包括以固定到系统的方式安装在检查隧道中的第一部分，使得它被布置在沙发板的下方，当其被引入时，第二部分可以被放置 进入沙发板，并与沙发板一起引入和从检查隧道中取出。 在至少一个实施例中，第二部分是尺寸稳定的设计，并且具有适于被检查物体的清晰的横截面。 因此，减少了施加RF天线的时间费用，并且RF天线的固定位置能够校正伽马射线的衰减。 此外，可以提供多个具有各种直径的第二部分。

公开(公告)号：US20120086451A1

公开(公告)日：2012-04-12

申请号：US13253066

申请日：2011-10-05

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler

IPC分类号： G01R33/34

CPC分类号： G01R33/3657 ,  G01R33/34076 ,  G01R33/481 ,  G01R33/56518

摘要： The present embodiments include a magnetic resonance antenna having parallel-running longitudinal antenna rods arranged in a birdcage structure and antenna ferrules connecting the parallel-running longitudinal antenna rods at ends of the parallel-running longitudinal antenna rods in radio frequency terms. The magnetic resonance antenna includes a plurality of radio-frequency switching elements configured to interrupt at least a part of the parallel-running longitudinal antenna rods to detune a natural resonance frequency with respect to an operating magnetic resonance frequency in radio frequency terms. At least some radio-frequency switching elements of the plurality of radio-frequency switching elements are arranged at end sections of the parallel-running longitudinal antenna rods.

摘要翻译： 本实施例包括具有布置在鸟笼结构中的平行行进的纵向天线杆的磁共振天线和以平行延伸的纵向天线杆的端部在平行延伸的纵向天线杆的端部处以射频方式连接的天线套圈。 磁共振天线包括多个射频开关元件，其被配置为中断至少一部分并行运行的纵向天线杆，以使其相对于工作磁共振频率在射频期间失谐。 多个射频开关元件中的至少一些射频开关元件布置在并行运行的纵向天线杆的端部。

公开(公告)号：US08073527B2

公开(公告)日：2011-12-06

申请号：US11905250

申请日：2007-09-28

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

IPC分类号： A61B5/05

CPC分类号： G01R33/3415 ,  G01R33/481

摘要： An RF antenna arrangement of a combined MR/PET system is disclosed. In at least one embodiment, the RF antenna arrangement includes a first part installed in the examination tunnel in a fashion fixed to the system such that it is arranged underneath the couch board when the latter is introduced, and a second part, which can be placed onto the couch board and be introduced into and withdrawn from the examination tunnel together with the couch board. In at least one embodiment, the second part is of dimensionally stable design and has a clear cross section that is adapted to the object to be examined. Consequently, the time outlay for applying the RF antenna is reduced, and the fixed position of the RF antenna enables a correction of the attenuation of gamma rays. Furthermore, a number of second parts having various diameters can be provided.

摘要翻译： 公开了一种组合MR / PET系统的RF天线装置。 在至少一个实施例中，RF天线布置包括以固定到系统的方式安装在检查隧道中的第一部分，使得它被布置在沙发板的下方，当其被引入时，第二部分可以被放置 进入沙发板，并与沙发板一起引入和从检查隧道中取出。 在至少一个实施例中，第二部分是尺寸稳定的设计，并且具有适于被检查物体的清晰的横截面。 因此，减少了施加RF天线的时间费用，并且RF天线的固定位置能够校正伽马射线的衰减。 此外，可以提供多个具有各种直径的第二部分。

公开(公告)号：US08064981B2

公开(公告)日：2011-11-22

申请号：US11984479

申请日：2007-11-19

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

IPC分类号： A61B5/05

CPC分类号： G01R33/28 ,  A61B5/0035 ,  A61B5/055 ,  A61B6/037 ,  G01R33/481 ,  G01T1/1603

摘要： A device for superposed magnetic resonance tomography and positron emission tomography imaging is disclosed. In at least one embodiment, the device includes a magnetic resonance tomography magnet, which defines a longitudinal axis; a magnetic resonance tomography gradient coil, arranged radially within the magnetic resonance tomography magnet; a magnetic resonance tomography RF coil, arranged radially within the magnetic resonance tomography gradient coil; and a multiplicity of positron emission tomography detection units, arranged in pairs lying opposite to one another about the longitudinal axis. In at least one embodiment, the many positron emission tomography detection units are arranged radially within the magnetic resonance tomography gradient coil and are arranged along the longitudinal axis next to the magnetic resonance tomography RF coil.

摘要翻译： 公开了用于叠加磁共振断层扫描和正电子发射断层摄影成像的装置。 在至少一个实施例中，该装置包括限定纵轴的磁共振断层摄影磁体; 磁共振断层摄影梯度线圈，位于磁共振断层摄影磁体内; 磁共振断层摄影RF线圈，径向设置在磁共振断层扫描梯度线圈内; 以及多个正电子发射断层摄影检测单元，成对地布置成围绕纵向轴线彼此相对。 在至少一个实施例中，许多正电子发射断层摄影检测单元径向布置在磁共振断层扫描梯度线圈内，并且沿着纵向轴线布置在磁共振断层摄影RF线圈旁边。

公开(公告)号：US07728590B2

公开(公告)日：2010-06-01

申请号：US11902584

申请日：2007-09-24

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Norbert Rietsch

IPC分类号： G01V3/00

CPC分类号： G01R33/28 ,  A61B5/0035 ,  A61B5/055 ,  G01R33/481 ,  G01T1/1603

摘要： A detection unit is disclosed for arrangement in the main magnet of an MR device, which has both an RF transceiver system and a PET detector. In at least one embodiment the RF transceiver system is divided into two parts and the two parts are arranged upstream and downstream of the PET detector in the longitudinal direction of the patient tunnel. The RF transceiver system and PET detector are applied to the same image volume. In at least one other embodiment, an MR device is equipped with the detection unit, and in at least one other embodiment, a method operates the detection unit.

摘要翻译： 公开了用于布置在MR设备的主磁体中的检测单元，其具有RF收发器系统和PET检测器。 在至少一个实施例中，RF收发器系统被分成两部分，并且两个部分被布置在患者隧道的纵向上的PET检测器的上游和下游。 RF收发器系统和PET检测器应用于相同的图像体积。 在至少另一个实施例中，MR装置配备有检测单元，并且在至少一个其它实施例中，一种方法操作检测单元。

公开(公告)号：US08779774B2

公开(公告)日：2014-07-15

申请号：US13253066

申请日：2011-10-05

申请人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Razvan Lazar ,  Jürgen Nistler

IPC分类号： G01V3/00

CPC分类号： G01R33/3657 ,  G01R33/34076 ,  G01R33/481 ,  G01R33/56518

摘要： The present embodiments include a magnetic resonance antenna having parallel-running longitudinal antenna rods arranged in a birdcage structure and antenna ferrules connecting the parallel-running longitudinal antenna rods at ends of the parallel-running longitudinal antenna rods in radio frequency terms. The magnetic resonance antenna includes a plurality of radio-frequency switching elements configured to interrupt at least a part of the parallel-running longitudinal antenna rods to detune a natural resonance frequency with respect to an operating magnetic resonance frequency in radio frequency terms. At least some radio-frequency switching elements of the plurality of radio-frequency switching elements are arranged at end sections of the parallel-running longitudinal antenna rods.

摘要翻译： 本实施例包括具有布置在鸟笼结构中的平行行进的纵向天线杆的磁共振天线和以平行延伸的纵向天线杆的端部在平行延伸的纵向天线杆的端部处以射频方式连接的天线套圈。 磁共振天线包括多个射频开关元件，其被配置为中断至少一部分并行运行的纵向天线杆，以使其相对于工作磁共振频率在无线电频率方面失谐。 多个射频开关元件中的至少一些射频开关元件布置在并行运行的纵向天线杆的端部。