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    Mri System Comprising a Scan Room Inferface for A/D-Conversion of Mr Signals Between a Receiver Coil Unit and a Remote Signal Processing Unit
    1.
    发明申请
    Mri System Comprising a Scan Room Inferface for A/D-Conversion of Mr Signals Between a Receiver Coil Unit and a Remote Signal Processing Unit 有权
    包含扫描室的Mri系统接收器线圈单元和远程信号处理单元之间的信号的A / D转换的表面

    公开(公告)号：US20080191695A1

    公开(公告)日：2008-08-14

    申请号：US11909164

    申请日：2006-03-20

    申请人： Marinus Johannes Adrianus Maria Van Helvoort ,  Marc Paul Saes ,  Johan Samuel Van Den Brink ,  Robert Paul Kleihorst ,  Paulus Cornelius Hendrikus Adrianus Haans

    发明人： Marinus Johannes Adrianus Maria Van Helvoort ,  Marc Paul Saes ,  Johan Samuel Van Den Brink ,  Robert Paul Kleihorst ,  Paulus Cornelius Hendrikus Adrianus Haans

    IPC分类号： G01R33/36

    CPC分类号： G01R33/3621 ,  G01R33/3415 ,  G01R33/3692

    摘要： The present invention relates to a magnetic resonance imaging system, to a magnetic resonance imaging method for operating a magnetic resonance imaging system and to a computer program for operating a magnetic resonance imaging system. In order to considerably reduce the number of cabling in a magnetic resonance imaging system a magnetic resonance imaging system (1) is suggested, the system comprising: an examination zone (5) arranged to receive a body for examination; magnetic field generating means (9, 10, 24) for generating a magnetic field in the examination zone (5); a receiving unit (14) located in the examination zone (5) or in the vicinity of the examination zone (5); an interface unit (17) located in the examination zone (5) or in the vicinity of the examination zone (5), and arranged separately from the receiving unit (14); and a signal processing unit (21) disposed at a location (2) remote from the receiving unit (14) and the interface unit (17); wherein the receiving unit (14) comprising a receiver (15) adapted to receive a spin resonance signal generated in the examination zone (5), and a transmitter (16) adapted to transmit the spin resonance signal to the interface unit (17); and wherein the interface unit (17) comprises a receiver (20) for receiving the spin resonance signals, an analog to digital converter (19) adapted to generate a digital signal in response to the received spin resonance signal, and a transmitter (20) for transmitting the digitized signal to the signal processing unit (21).

    摘要翻译： 磁共振成像系统技术领域本发明涉及一种用于操作磁共振成像系统的磁共振成像方法和用于操作磁共振成像系统的计算机程序的磁共振成像系统。 为了大大减少磁共振成像系统中的电缆数量，建议使用磁共振成像系统（1），该系统包括：检查区域（5），布置成接收检查体; 用于在检查区（5）中产生磁场的磁场产生装置（9,10,24）; 位于检查区（5）或检查区（5）附近的接收单元（14）; 位于所述检查区域（5）中或所述检查区域（5）附近的接口单元（17），并且与所述接收单元（14）分开布置; 以及设置在远离所述接收单元（14）和所述接口单元（17）的位置（2）处的信号处理单元（21）。 其中所述接收单元（14）包括适于接收在所述检查区（5）中产生的自旋共振信号的接收器（15）和适于将所述自旋共振信号传输到所述接口单元（17）的发射器（16）。 并且其中所述接口单元（17）包括用于接收所述自旋谐振信号的接收器（20），适于响应于所接收的自旋谐振信号产生数字信号的模数转换器（19），以及发射器（20） 用于将数字化信号发送到信号处理单元（21）。

    MRI system comprising a scan room interface for A/D-conversion of MR signals between a receiver coil unit and a remote signal processing unit
    2.
    发明授权
    MRI system comprising a scan room interface for A/D-conversion of MR signals between a receiver coil unit and a remote signal processing unit 有权
    MRI系统包括用于在接收器线圈单元和远程信号处理单元之间进行MR信号的A / D转换的扫描室接口

    公开(公告)号：US07746072B2

    公开(公告)日：2010-06-29

    申请号：US11909164

    申请日：2006-03-20

    申请人： Marinus Johannes Adrianus Maria Van Helvoort ,  Marc Paul Saes ,  Johan Samuel Van Den Brink ,  Robert Paul Kleihorst ,  Paulus Cornelius Hendrikus Adrianus Haans

    发明人： Marinus Johannes Adrianus Maria Van Helvoort ,  Marc Paul Saes ,  Johan Samuel Van Den Brink ,  Robert Paul Kleihorst ,  Paulus Cornelius Hendrikus Adrianus Haans

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3621 ,  G01R33/3415 ,  G01R33/3692

    摘要： The present invention relates to a magnetic resonance imaging system, to a magnetic resonance imaging method for operating a magnetic resonance imaging system and to a computer program for operating a magnetic resonance imaging system. In order to considerably reduce the number of cabling in a magnetic resonance imaging system a magnetic resonance imaging system (1) is suggested, the system comprising: an examination zone (5) arranged to receive a body for examination; magnetic field generating means (9, 10, 24) for generating a magnetic field in the examination zone (5); a receiving unit (14) located in the examination zone (5) or in the vicinity of the examination zone (5); an interface unit (17) located in the examination zone (5) or in the vicinity of the examination zone (5), and arranged separately from the receiving unit (14); and a signal processing unit (21) disposed at a location (2) remote from the receiving unit (14) and the interface unit (17); wherein the receiving unit (14) comprising a receiver (15) adapted to receive a spin resonance signal generated in the examination zone (5), and a transmitter (16) adapted to transmit the spin resonance signal to the interface unit (17); and wherein the interface unit (17) comprises a receiver (20) for receiving the spin resonance signals, an analog to digital converter (19) adapted to generate a digital signal in response to the received spin resonance signal, and a transmitter (20) for transmitting the digitized signal to the signal processing unit (21).

    摘要翻译： 磁共振成像系统技术领域本发明涉及一种用于操作磁共振成像系统的磁共振成像方法和用于操作磁共振成像系统的计算机程序的磁共振成像系统。 为了大大减少磁共振成像系统中的电缆数量，建议使用磁共振成像系统（1），该系统包括：检查区域（5），布置成接收检查体; 用于在检查区（5）中产生磁场的磁场产生装置（9,10,24）; 位于检查区（5）或检查区（5）附近的接收单元（14）; 位于所述检查区域（5）中或所述检查区域（5）附近的接口单元（17），并且与所述接收单元（14）分开布置; 以及设置在远离所述接收单元（14）和所述接口单元（17）的位置（2）处的信号处理单元（21）。 其中所述接收单元（14）包括适于接收在所述检查区（5）中产生的自旋共振信号的接收器（15）和适于将所述自旋共振信号传输到所述接口单元（17）的发射器（16）。 并且其中所述接口单元（17）包括用于接收所述自旋谐振信号的接收器（20），适于响应于所接收的自旋谐振信号产生数字信号的模数转换器（19），以及发射器（20） 用于将数字化信号发送到信号处理单元（21）。

    MR coil module
    3.
    发明授权
    MR coil module 有权
    MR线圈模块

    公开(公告)号：US06759846B2

    公开(公告)日：2004-07-06

    申请号：US10243055

    申请日：2002-09-13

    申请人： Marinus Johannes Adrianus Maria Van Helvoort ,  Johan Samuel Van Den Brink ,  Diana Maria Francisca Geraats ,  Paulus Cornelius Hendrikus Adrianus Haans ,  Cornelis Leonardus Gerardus Ham

    发明人： Marinus Johannes Adrianus Maria Van Helvoort ,  Johan Samuel Van Den Brink ,  Diana Maria Francisca Geraats ,  Paulus Cornelius Hendrikus Adrianus Haans ,  Cornelis Leonardus Gerardus Ham

    IPC分类号： G01V300

    CPC分类号： G01R33/3415 ,  G01R33/3657 ,  G01R33/3664 ,  G01R33/3685

    摘要： The invention relates to an MR coil module for use in an MR imaging system for receiving and/or transmitting RF signals. In order to provide an MR coil module which allows a modular and user definable configuration of an RF coil system and which provides a high SENSE factor (>2), the MR coil module according to the invention comprises: at least two coil elements (21-26) positioned next to each other, a preamplifier (51-56) for each coil element (21-26), a signal bus (40) for transferring RF signals between said coil elements (21-26), an output means (10) and an input means (9), an output means (10) for outputting RF signals from the MR coil module (1), an input means (9) for inputting RF signals into the MR coil module (1), switching means (6) for switching the connections between said coil elements (21-26), said input means (9) and said output means (10), wherein said output means (10) and said input means (9) are adapted complementary so as to enable electrical and mechanical connection of the module (1) to other modules.

    摘要翻译： 本发明涉及用于MR成像系统中用于接收和/或发射RF信号的MR线圈模块。 为了提供允许RF线圈系统的模块化和用户可定义配置并且提供高SENSE因子（> 2）的MR线圈模块，根据本发明的MR线圈模块包括：至少两个线圈元件（21 -26），用于每个线圈元件（21-26）的前置放大器（51-56），用于在所述线圈元件（21-26）之间传送RF信号的信号总线（40），输出装置 10）和输入装置（9），用于从MR线圈模块（1）输出RF信号的输出装置（10），用于将RF信号输入到MR线圈模块（1）中的输入装置（9），切换装置 （6），用于切换所述线圈元件（21-26），所述输入装置（9）和所述输出装置（10）之间的连接，其中所述输出装置（10）和所述输入装置（9） 以实现模块（1）与其他模块的电气和机械连接。

    MRI OF A CONTINUOUSLY MOVING OBJECT INVOLVING MOTION COMPENSATION
    7.
    发明申请
    MRI OF A CONTINUOUSLY MOVING OBJECT INVOLVING MOTION COMPENSATION 审中-公开
    涉及运动补偿的连续移动对象的MRI

    公开(公告)号：US20090177076A1

    公开(公告)日：2009-07-09

    申请号：US12296936

    申请日：2007-04-05

    申请人： Bernd Aldefeld ,  Peter Boernert ,  Jochen Keupp ,  Johan Samuel Van Den Brink

    发明人： Bernd Aldefeld ,  Peter Boernert ,  Jochen Keupp ,  Johan Samuel Van Den Brink

    IPC分类号： A61B5/05

    CPC分类号： G01R33/56375 ,  G01R33/56383 ,  G01R33/56509 ,  G01R33/5673 ,  G01R33/5676

    摘要： A magnetic resonance examination system has an object carrier (14) to move an object to be examined relative to the field of view. A monitoring system (33) monitors examination circumstances under which magnetic resonance signals are acquired from the object within the field of view. In particular the monitoring system monitors the degree of physiological motion in the patient to be examined. A velocity control system (32) to control the velocity of the movement of the object relative to the field of view and to control the velocity on the basis of the monitored examination circumstances, i.e. the degree of physiological motion.

    摘要翻译： 磁共振检查系统具有用于相对于视场移动待检查物体的物体载体（14）。 监视系统（33）监视从视野内的物体获取磁共振信号的检查情况。 特别地，监测系统监测待检查患者的生理运动程度。 一种速度控制系统（32），用于控制物体相对于视场的移动速度，并且基于所监视的检查情况即生理运动的程度来控制速度。

    Moving Table Mri
    8.
    发明申请
    Moving Table Mri 审中-公开
    移动表Mri

    公开(公告)号：US20080262340A1

    公开(公告)日：2008-10-23

    申请号：US11569069

    申请日：2005-05-12

    申请人： Cornelis Leonardus Gerardus Ham ,  Miha Fuderer ,  Johan Samuel Van Den Brink

    发明人： Cornelis Leonardus Gerardus Ham ,  Miha Fuderer ,  Johan Samuel Van Den Brink

    IPC分类号： A61B5/055 ,  G01R33/563

    CPC分类号： G01R33/56375

    摘要： The invention relates to a MRI system and to a method for producing an image with such an system. In order to provide a MR imaging technique with a high efficient MR signal acquisition, which provides a high level of comfort to a patient, a MRI system and method are suggested, where image data from an object are acquired while the object is moving with variable speed relative to the MRI system, and where the image data are combined and an image of the object is reconstructed.

    摘要翻译： 本发明涉及一种MRI系统和一种用这种系统生产图像的方法。 为了提供具有高效MR信号采集的MR成像技术，其为患者提供高水平的舒适性，建议了MRI系统和方法，其中在物体运动时获取来自对象的图像数据， 相对于MRI系统的速度，并且其中图像数据被组合并且重建对象的图像。

    Magnetic resonance imaging method involving sub-sampling
    9.
    发明授权
    Magnetic resonance imaging method involving sub-sampling 有权
    磁共振成像方法涉及次采样

    公开(公告)号：US07215190B2

    公开(公告)日：2007-05-08

    申请号：US10496388

    申请日：2002-11-20

    申请人： Romhild Martijn Hoogeveen ,  Frederik Visser ,  Lolkje Frederika Zoer ,  Willem Marten Prins ,  Johan Samuel Van Den Brink

    发明人： Romhild Martijn Hoogeveen ,  Frederik Visser ,  Lolkje Frederika Zoer ,  Willem Marten Prins ,  Johan Samuel Van Den Brink

    IPC分类号： G01V3/00

    CPC分类号： G01R33/4833 ,  G01R33/3415 ,  G01R33/5611

    摘要： In a magnetic resonance imaging method magnetic resonance signal samples are received for a predetermined field of view by a receiving antenna having a spatial sensitivity profile. The sampling in the k space corresponds to the predetermined field of view in the geometrical space. Folded-over images having folded-over pixel values are reconstructed from the sampled magnetic resonance signals. Pixel contributions for spatial positions within the predetermined field of view are calculated from the folded-over pixel values and the spatial sensitivity profile of the receiver antenna. The magnetic resonance image is formed from the pixel contributions for spatial positions within the predetermined field of view. Thus, aliasing or fold-over artefacts caused by a field of view that is too small are avoided.

    摘要翻译： 在磁共振成像方法中，通过具有空间灵敏度分布的接收天线，对于预定的视场来接收磁共振信号样本。 k空间中的采样对应于几何空间中的预定视场。 从采样的磁共振信号重建具有折叠像素值的折叠图像。 根据接收天线的折叠像素值和空间灵敏度曲线计算预定视场内的空间位置的像素贡献。 磁共振图像由预定视野内的空间位置的像素贡献形成。 因此，避免了由视场太小引起的混叠或折叠伪影。

    Magnetic resonance imaging method involving sub-sampling
    10.
    发明授权
    Magnetic resonance imaging method involving sub-sampling 有权
    磁共振成像方法涉及次采样

    公开(公告)号：US06556010B2

    公开(公告)日：2003-04-29

    申请号：US09880209

    申请日：2001-06-13

    申请人： Johan Samuel Van Den Brink ,  Julius Simon Cohen

    发明人： Johan Samuel Van Den Brink ,  Julius Simon Cohen

    IPC分类号： G01V300

    CPC分类号： G01R33/5611 ,  G01R33/246 ,  G01R33/3415 ,  G01R33/56545 ,  G01R33/5659

    摘要： A magnetic resonance imaging system is provided with a system of emission antennas,: for example, emission coils, for generating RF excitation pulses. The RF excitation pulses generate magnetic resonance signals from an object to be examined. The system of emission antennas has a spatially inhomogeneous emission profile. The inhomogeneous emission profile is used for the partial spatial encoding of the magnetic resonance signals in addition to the encoding on the basis of magnetic gradient fields. The magnetic resonance image is reconstructed on the basis of the inhomogeneous emission profile

    摘要翻译： 磁共振成像系统设置有用于产生RF激励脉冲的发射天线系统，例如发射线圈。 RF激励脉冲从被检查物体产生磁共振信号。 发射天线系统具有空间不均匀的发射特征。 除了基于磁梯度场的编码之外，不均匀发射分布用于磁共振信号的部分空间编码。 基于非均匀发射谱重建磁共振图像