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    CORRECTION OF IMAGING METHODS IN A MAGNETIC RESONANCE DEVICE
    12.
    发明申请
    CORRECTION OF IMAGING METHODS IN A MAGNETIC RESONANCE DEVICE 有权
    磁共振装置中成像方法的校正

    公开(公告)号：US20160146908A1

    公开(公告)日：2016-05-26

    申请号：US14938255

    申请日：2015-11-11

    申请人： Michael Köhler ,  Wilfried Landschütz ,  Jürgen Nistler ,  Markus Vester

    发明人： Michael Köhler ,  Wilfried Landschütz ,  Jürgen Nistler ,  Markus Vester

    IPC分类号： G01R33/24 ,  G06T7/00 ,  G06T3/40 ,  G01R33/565

    CPC分类号： G01R33/246 ,  G01R33/5659

    摘要： In a method, by a magnetic resonance device, a transmit B1 field map is determined for a region, a plurality of MR images of at least one part of the region are acquired using transmitter settings differing from each other, and signal intensities of individual pixels measured by the MR images are interpolated by the transmit B1 field map. A correction of the signal intensities may also be effected by carrying out a receive B1 correction by a spatial mirroring of the transmit B1 field map on a symmetry plane of a measured object. A magnetic resonance device is used to carry out the method. The method may be applied, for example, in medical diagnostics.

    摘要翻译： 在一种方法中，通过磁共振装置，为区域确定发射B1场图，使用彼此不同的发射机设置获取区域的至少一部分的多个MR图像，以及各个像素的信号强度 由MR图像测量由发送B1场图进行内插。 信号强度的校正也可以通过在测量对象的对称平面上通过发射B1场图的空间镜像进行接收B1校正来实现。 磁共振装置用于执行该方法。 该方法可以应用于例如医学诊断。

    Magnetic resonance apparatus having a hollow interior with a gradient coil disposed therein
    13.
    发明授权
    Magnetic resonance apparatus having a hollow interior with a gradient coil disposed therein 失效
    具有设置在其中的具有梯度线圈的中空内部的磁共振装置

    公开(公告)号：US07145335B2

    公开(公告)日：2006-12-05

    申请号：US10910893

    申请日：2004-08-04

    申请人： Jürgen Nistler ,  Stefan Stocker ,  Markus Vester

    发明人： Jürgen Nistler ,  Stefan Stocker ,  Markus Vester

    IPC分类号： 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。

    RF antenna for an open MR system
    14.
    发明授权
    RF antenna for an open MR system 失效
    射频天线用于开放MR系统

    公开(公告)号：US06798203B2

    公开(公告)日：2004-09-28

    申请号：US10102187

    申请日：2002-03-20

    申请人： Jürgen Nistler ,  Wolfgang Renz ,  Markus Vester

    发明人： Jürgen Nistler ,  Wolfgang Renz ,  Markus Vester

    IPC分类号： G01V300

    CPC分类号： G01R33/34046 ,  G01R33/341 ,  G01R33/3806

    摘要： An RF transmission/reception antenna for an open MR system, wherein the bottom and top poles of the basic field magnet are connected to one another by two columns, is composed of an electrically conductive connecting loop that surrounds the patient space and is formed by the basic field magnetic system with the connecting columns, with a shortening capacitor inserted in the loop.

    摘要翻译： 一种用于开放MR系统的射频发射/接收天线，其中基本场磁体的底极和顶极通过两列彼此连接，由围绕病人空间的导电连接环组成，并由 具有连接柱的基本磁场系统，在循环中插入缩短电容器。

    Magnetic resonance system with suppression of capacitive coupling between an RF source and the subject
    19.
    发明授权
    Magnetic resonance system with suppression of capacitive coupling between an RF source and the subject 有权
    磁共振系统，抑制RF源与被摄体之间的电容耦合

    公开(公告)号：US07235974B2

    公开(公告)日：2007-06-26

    申请号：US11389476

    申请日：2006-03-24

    申请人： Jürgen Nistler ,  Markus Vester

    发明人： Jürgen Nistler ,  Markus Vester

    IPC分类号： G01V3/00

    CPC分类号： G01R33/422 ,  G01R33/34007 ,  G01R33/34046 ,  G01R33/3657 ,  G01R33/385

    摘要： An examination subject arranged in an examination volume of a magnetic resonance system can be excited to magnetic resonance by an RF transmission antenna. The RF transmission antenna is fashioned as a resonant structure that surrounds a central axis of the magnetic resonance system running within the examination volume. The resonance structure has inner edges proceeding around the central axis on its inner side facing the central axis, which inner edges form a capacitively-bridged annular gap extending parallel to the central axis. The RF transmission antenna is embedded into the gradient coil, such that the gradient coil at least radially outwardly and axially surrounds the RF transmission antenna), and the inner edges of the RF transmission antenna are connected in an electrically-conductive manner with inner sides of the gradient coil to the central axis. They are arranged radially inwardly (viewed from the annular gap) and axially completely cover the annular gap as well as axially at least partially cover the inner sides of the gradient coil.

    摘要翻译： 配置在磁共振系统的检查体积中的检查对象可以被RF发送天线激励到磁共振。 RF发射天线被形成为围绕在检查体积内运行的磁共振系统的中心轴线的谐振结构。 谐振结构具有内边缘围绕中心轴线在其面向中心轴线的内侧上延伸，该内边缘形成平行于中心轴线延伸的电容桥接环形间隙。 射频发射天线被嵌入到梯度线圈中，使得梯度线圈至少径向向外并且轴向地围绕RF发射天线），并且RF发射天线的内边缘以导电方式与 梯度线圈到中心轴线。 它们径向向内（从环形间隙看）并且轴向地完全覆盖环形间隙，并且轴向地至少部分地覆盖梯度线圈的内侧。

    Generator of time-variable magnetic fields of a magnetic resonance device and magnetic resonance device
    20.
    发明授权
    Generator of time-variable magnetic fields of a magnetic resonance device and magnetic resonance device 有权
    磁共振装置和磁共振装置的时变磁场发生器

    公开(公告)号：US07109715B2

    公开(公告)日：2006-09-19

    申请号：US10984636

    申请日：2004-11-09

    申请人： Oliver Heid ,  Jürgen Nistler ,  Markus Vester

    发明人： Oliver Heid ,  Jürgen Nistler ,  Markus Vester

    IPC分类号： G01V3/00

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

    摘要： A generator of time-variable magnetic fields of a magnetic resonance device having an examination space for registering at least one area to be examined of an item being examined has the following features: the conductors of a gradient coil arrangement of the generator define an area at least partially surrounding the examination space, said area contains at least a partial area which is free from conductors of the gradient coil arrangement and which contains conductors of a radio frequency antenna of the generator, and a field flowback space, inter alia for fields of the radio frequency antenna, extends proceeding from the partial area away from the examination space and is delimited beyond said partial area by a radio frequency shield.

    摘要翻译： 具有检查空间的磁共振装置的时变磁场发生器具有以下特征：发电机的梯度线圈装置的导体限定了被检查物品的至少一个区域的面积 至少部分地围绕检查空间，所述区域包含至少部分区域，其不含梯度线圈装置的导体并且包含发生器的射频天线的导体，以及场回流空间，尤其用于 无线电频率天线从部分区域延伸出远离检查空间，并通过射频屏蔽限定在所述部分区域之外。