公开(公告)号：US20120146644A1

公开(公告)日：2012-06-14

申请号：US13160317

申请日：2011-06-14

申请人： Peter Dietz ,  Johann Schuster ,  Stefan Stocker ,  Axel Vom Endt

发明人： Peter Dietz ,  Johann Schuster ,  Stefan Stocker ,  Axel Vom Endt

IPC分类号： G01R33/44

CPC分类号： G01R33/3802 ,  G01R33/34007 ,  G01R33/3804 ,  G01R33/3815 ,  G01R33/3858 ,  G01R33/421 ,  G01R33/422

摘要： The present embodiments relate to a magnetic resonance tomography system having a basic-field field generation device for generating a basic magnetic field. The magnetic resonance tomography system also includes a gradient-field field generation device for generating a gradient field, where the basic-field field generation device and the gradient-field field generation device are arranged in an evacuatable low-pressure housing.

摘要翻译： 本实施例涉及具有用于产生基本磁场的基本场场产生装置的磁共振断层摄影系统。 磁共振断层摄影系统还包括用于产生梯度场的梯度场场产生装置，其中基本场场产生装置和梯度场场产生装置布置在可抽空的低压壳体中。

公开(公告)号：US20090146657A1

公开(公告)日：2009-06-11

申请号：US11989243

申请日：2006-07-13

申请人： Franz Hebrank ,  Thorsten Speckner ,  Axel vom Endt

发明人： Franz Hebrank ,  Thorsten Speckner ,  Axel vom Endt

IPC分类号： G01R33/565 ,  G06K9/40

CPC分类号： G01R33/56518

摘要： In one embodiment of the present invention, a method for processing a 2D or 3D reconstruction image is disclosed which is recorded by a magnetic resonance device, including a gradient coil that generates a gradient field, and is distortion—corrected with regard to a given non-linearity—leading to an image distortion—of the gradient field using an algorithm that processes the measurement signals at different measurement points lying in the imaging volume, which algorithm, with respect to each signal processed by it, processes the first input value describing the real gradient field given at the real measurement point of the signal, in which method, for inverse transformation of the distortion-corrected reconstruction image into a distortion-uncorrected reconstruction image, use is made of the first algorithm or a second algorithm corresponding to the first algorithm, which, with respect to each signal processed by it, is given as second input value such a value which describes a fictitious gradient field at the respective distorted measurement point at which the processed signal appears, which is increased or decreased by the non-linear field component of the real gradient field compared with the linear ideal gradient field.

摘要翻译： 在本发明的一个实施例中，公开了一种用于处理2D或3D重建图像的方法，其由磁共振装置记录，所述磁共振装置包括产生梯度场的梯度线圈，并且对于给定非对称 - 使用处理在成像体积中的不同测量点处的测量信号的算法，导致梯度场的图像失真，该算法相对于由其处理的每个信号处理描述第一输入值的第一输入值 在该信号的实际测量点处给出的实际梯度场，其中用于将失真校正的重建图像逆变换为失真未校正的重建图像，使用第一算法或对应于第一算法的第二算法 算法，其对于由其处理的每个信号，被给予为第二输入值，例如描述虚构的值 在经过处理的信号出现的相应变形的测量点处，与线性理想梯度场相比，实际梯度场的非线性场分量增加或减小。

公开(公告)号：US07538551B2

公开(公告)日：2009-05-26

申请号：US11522228

申请日：2006-09-15

申请人： Ralph Kimmlingen ,  Andreas Krug ,  Johann Schuster ,  Axel Vom Endt

发明人： Ralph Kimmlingen ,  Andreas Krug ,  Johann Schuster ,  Axel Vom Endt

IPC分类号： G01V3/00

CPC分类号： G01R33/3856 ,  F28D15/00 ,  Y10T436/24

摘要： In a gradient coil device having at least one conductor structure for use in a magnetic resonance apparatus, the conductor structure is a conductive liquid, contained in a tube system, that flows through the tube system in order to carry off heat lost during the operation of the gradient coil device.

摘要翻译： 在具有用于磁共振装置中的至少一个导体结构的梯度线圈装置中，导体结构是包含在管系中的导电液体，其流过管系，以便在操作期间散失热量 梯度线圈装置。

公开(公告)号：US08131340B2

公开(公告)日：2012-03-06

申请号：US12441974

申请日：2007-09-19

申请人： Eva Eberlein ,  Ludwig Eberler ,  Andreas Krug ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Axel vom Endt

发明人： Eva Eberlein ,  Ludwig Eberler ,  Andreas Krug ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Axel vom Endt

IPC分类号： A61B5/05

CPC分类号： G01R33/34046 ,  G01R33/28 ,  G01R33/34076 ,  G01R33/422 ,  G01R33/481

摘要： A detector unit for arrangement in a field generating unit of a magnetic resonance device has an RF transmission/reception system for transmitting RF pulses into, or receiving magnetic resonance signals from, an examination volume of the field generation unit. The RF transmission/reception system surrounds a patient tunnel at a radial distance from a tunnel axis thereof, and is divided into two sub-systems located at a distance from each other along the direction of the tunnel axis, so as to form a substantially annular cavity or interstice therebetween.

摘要翻译： 用于布置在磁共振装置的场产生单元中的检测器单元具有RF发射/接收系统，用于将RF脉冲发送到场发生单元的检查体中或从其接收磁共振信号。 RF发送/接收系统围绕患者隧道在距离其隧道轴线的径向距离处，并且被分成沿着隧道轴线的方向彼此间隔一定距离的两个子系统，以便形成大致环形 空腔或间隙。

公开(公告)号：US20140035585A1

公开(公告)日：2014-02-06

申请号：US13957394

申请日：2013-08-01

申请人： Johann Schuster ,  Lothar Schön ,  Stefan Stocker ,  Axel vom Endt

发明人： Johann Schuster ,  Lothar Schön ,  Stefan Stocker ,  Axel vom Endt

IPC分类号： G01R33/381 ,  G01R33/38

CPC分类号： G01R33/381 ,  G01R33/3802 ,  G01R33/3875 ,  Y10T29/4913

摘要： A shim coil arrangement for a magnetic resonance tomography system includes one or more spacers.

摘要翻译： 用于磁共振断层摄影系统的垫片线圈装置包括一个或多个间隔件。

公开(公告)号：US08054079B2

公开(公告)日：2011-11-08

申请号：US12801801

申请日：2010-06-25

申请人： Franz Hebrank ,  Thorsten Speckner ,  Axel vom Endt

发明人： Franz Hebrank ,  Thorsten Speckner ,  Axel vom Endt

IPC分类号： G01V3/00

CPC分类号： G01R33/56518

摘要： In one embodiment a method for processing a reconstruction image is disclosed. The method includes recording the reconstruction image by a magnetic resonance device having a gradient coil to generate a gradient field. The method further includes distortion-correcting the reconstruction image. The method further includes back-transforming the distortion-corrected reconstruction image, by an image processing device, into a distortion-uncorrected reconstruction image, the back-transforming uses an algorithm having a first input value describing a real gradient field given at a real measuring point of the signal.

摘要翻译： 在一个实施例中，公开了一种用于处理重建图像的方法。 该方法包括通过具有梯度线圈的磁共振装置记录重建图像以产生梯度场。 该方法还包括对重建图像进行失真校正。 该方法还包括通过图像处理装置将失真校正的重构图像逆变换为失真未校正的重建图像，反向变换使用具有描述实际测量中给出的实际梯度场的第一输入值的算法 点的信号。

公开(公告)号：US08008916B2

公开(公告)日：2011-08-30

申请号：US11995953

申请日：2006-07-14

申请人： Jörg Riegler ,  Axel vom Endt

发明人： Jörg Riegler ,  Axel vom Endt

IPC分类号： G01V3/00 ,  A61B5/05

CPC分类号： G01R33/385 ,  G01R33/3875

摘要： A magnetic resonance apparatus has a cylindrical gradient coil with an x-gradient coil and a y-gradient coil that are asymmetrical relative to the z-direction of a coordinate system, the z-direction extending along a longitudinal direction of a patient receptacle. Shim coils are provided that generate magnetic fields to homogenize the basic magnetic field, produced by a cylindrical basic field magnet, in an examination volume in the patient receptacle. At least some of the shim coils are asymmetrical relative to the z-direction to minimize coupling induction between the asymmetrical x-gradient coil and y-gradient coil and the asymmetrical shim coils.

摘要翻译： 磁共振装置具有圆柱形梯度线圈，其具有相对于坐标系的z方向不对称的x梯度线圈和y梯度线圈，z方向沿病人容器的纵向方向延伸。 提供垫圈线圈，其产生磁场以使由圆柱形基本场磁体产生的基本磁场在患者容器中的检查体积中均匀化。 衬垫线圈中的至少一些相对于z方向是不对称的，以最小化不对称x梯度线圈和y-梯度线圈与非对称垫片线圈之间的耦合感应。

公开(公告)号：US20100117648A1

公开(公告)日：2010-05-13

申请号：US11995953

申请日：2006-07-14

申请人： Jörg Riegler ,  Axel vom Endt

发明人： Jörg Riegler ,  Axel vom Endt

IPC分类号： G01R33/44

CPC分类号： G01R33/385 ,  G01R33/3875

摘要： A magnetic resonance apparatus has a cylindrical gradient coil with an x-gradient coil and a y-gradient coil that are asymmetrical relative to the z-direction of a coordinate system, the z-direction extending along a longitudinal direction of a patient receptacle. Shim coils are provided that generate magnetic fields to homogenize the basic magnetic field, produced by a cylindrical basic field magnet, in an examination volume in the patient receptacle. At least some of the shim coils are asymmetrical relative to the z-direction to minimize coupling induction between the asymmetrical x-gradient coil and y-gradient coil and the asymmetrical shim coils.

摘要翻译： 磁共振装置具有圆柱形梯度线圈，其具有相对于坐标系的z方向不对称的x梯度线圈和y梯度线圈，z方向沿病人容器的纵向方向延伸。 提供垫圈线圈，其产生磁场以使由圆柱形基本场磁体产生的基本磁场在患者容器中的检查体积中均匀化。 衬垫线圈中的至少一些相对于z方向是不对称的，以最小化不对称x梯度线圈和y-梯度线圈与非对称垫片线圈之间的耦合感应。

公开(公告)号：US20100036237A1

公开(公告)日：2010-02-11

申请号：US12441974

申请日：2007-09-19

申请人： Eva Eberlein ,  Ludwig Eberler ,  Andreas Krug ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Axel Vom Endt

发明人： Eva Eberlein ,  Ludwig Eberler ,  Andreas Krug ,  Razvan Lazar ,  Jürgen Nistler ,  Wolfgang Renz ,  Axel Vom Endt

IPC分类号： A61B5/055

CPC分类号： G01R33/34046 ,  G01R33/28 ,  G01R33/34076 ,  G01R33/422 ,  G01R33/481

摘要： A detector unit for arrangement in a field generating unit of a magnetic resonance device has an RF transmission/reception system for transmitting RF pulses into, or receiving magnetic resonance signals from, an examination volume of the field generation unit. The RF transmission/reception system surrounds a patient tunnel at a radial distance from a tunnel axis thereof, and is divided into two sub-systems located at a distance from each other along the direction of the tunnel axis, so as to form a substantially annular cavity or interstice therebetween.

摘要翻译： 用于布置在磁共振装置的场产生单元中的检测器单元具有RF发射/接收系统，用于将RF脉冲发送到场发生单元的检查体中或从其接收磁共振信号。 RF发送/接收系统围绕患者隧道在距离其隧道轴线的径向距离处，并且被分成沿着隧道轴线的方向彼此间隔一定距离的两个子系统，以便形成大致环形 空腔或间隙。

公开(公告)号：US06844731B2

公开(公告)日：2005-01-18

申请号：US10274863

申请日：2002-10-21

申请人： Axel Vom Endt

发明人： Axel Vom Endt

IPC分类号： G01R33/385 ,  H01F27/08 ,  H01F27/18 ,  H01F27/22 ,  G01V3/00

CPC分类号： G01R33/3856 ,  H01F27/08 ,  H01F27/18 ,  H01F27/22

摘要： A gradient coil system for a magnetic resonance apparatus has at least one component of a cooling apparatus, and a latent heat storage apparatus which undergoes a phase transition during operation of the gradient coil system.

摘要翻译： 用于磁共振装置的梯度线圈系统具有冷却装置的至少一个部件和在梯度线圈系统的操作期间经历相变的潜热储存装置。