公开(公告)号：US06462636B1

公开(公告)日：2002-10-08

申请号：US09709268

申请日：2000-11-09

申请人： Johannes Adrianus Overweg ,  Carsten Warmuth ,  Christoph Günther Leussler ,  Peter Karl Hermann Röschmann

发明人： Johannes Adrianus Overweg ,  Carsten Warmuth ,  Christoph Günther Leussler ,  Peter Karl Hermann Röschmann

IPC分类号： G01V300

CPC分类号： G01R33/385 ,  G01R33/3852

摘要： The invention relates to an MR apparatus which includes a cylindrical main field magnet for generating a uniform, steady magnetic field whose cylindrical shape defines a symmetry axis, a gradient coil system which encloses the symmetry axis and includes a plurality of gradient coils, an RF coil system which is situated inside the gradient coil system and includes a plurality of mutually offset conductors which extend parallel to the symmetry axis, and a table top for accommodating an object to be examined.

摘要翻译： 本发明涉及一种MR装置，它包括一个圆柱形主磁场磁体，用于产生一个均匀的，稳定的磁场，其圆柱形形状定义一个对称轴;一个包围对称轴并包括多个梯度线圈的梯度线圈系统，一个RF线圈系统 其位于梯度线圈系统内部并且包括平行于对称轴线延伸的多个相互偏移的导体，以及用于容纳被检查物体的台面。

公开(公告)号：US07221160B2

公开(公告)日：2007-05-22

申请号：US10517929

申请日：2003-06-10

申请人： Christoph Günther Leussler ,  Peter Börnert

发明人： Christoph Günther Leussler ,  Peter Börnert

IPC分类号： G01V3/00

CPC分类号： G01R33/3415 ,  G01R33/5611

摘要： An MR device for MR imaging includes an RF coil system. In order to enable switching to and fro between different applications in such an MR device without having to move the patient so as to position a new RF coil system, it is proposed to provide the RF coil system for the transmission and/or reception of RF signals with at least two RF coil arrays which are integrated in one coil former and have been optimized for different applications, each RF coil array comprising at least two RF coils which are decoupled from one another.

摘要翻译： 用于MR成像的MR装置包括RF线圈系统。 为了实现这种MR装置中的不同应用之间来回切换而不必移动患者以便定位新的RF线圈系统，建议提供用于RF和RF的RF线圈系统的发送和/或接收 具有至少两个RF线圈阵列的信号，其集成在一个线圈形成器中并且已经针对不同的应用进行了优化，每个RF线圈阵列包括彼此分离的至少两个RF线圈。

公开(公告)号：US07183770B2

公开(公告)日：2007-02-27

申请号：US10541449

申请日：2003-12-18

申请人： Ingmar Gräβlin ,  Christoph Günther Leussler

发明人： Ingmar Gräβlin ,  Christoph Günther Leussler

IPC分类号： G01V3/00

CPC分类号： G01R33/3415

摘要： The invention relates to a high-frequency system for an MR apparatus with a high-frequency coil arrangement comprising a plurality of resonator elements (104), which is connected to a transmit unit (106), where a respective transmit channel (1–8) of the transmit unit (106) is assigned to the resonator elements (104). In order to provide a high-frequency system of this kind at low cost, by means of which a high frequency field can be generated in an examination volume (100) with a field distribution that can be preselected flexibly and variably, the invention proposes that the transmit unit (106) is equipped with a plurality of high-frequency amplifiers (107), the inputs of which can receive low-power transmit signals via a first controllable multiplexer/distributor network (108), in which the output signals of the high-frequency amplifiers (107) can be distributed over the transmit channels (1–8) via a second controllable multiplexer/distributor network (109). In addition, the invention relates to an MR apparatus with a high-frequency system of this kind.

摘要翻译： 本发明涉及一种具有高频线圈装置的MR装置的高频系统，该高频线圈装置包括连接到发射单元（106）的多个谐振器元件（104），其中相应的发射信道（1-8 ）被分配给谐振器元件（104）。 为了以低成本提供这种高频系统，通过这种高频系统可以在可以灵活和可变地预选的场分布的检查体积（100）中产生高频场，本发明提出 发射单元（106）配备有多个高频放大器（107），其输入可以经由第一可控多路复用器/分配器网络（108）接收低功率发射信号，其中输出信号 高频放大器（107）可经由第二可控多路复用器/分配器网络（109）分布在发射信道（1-8）上。 此外，本发明涉及具有这种高频系统的MR装置。