MRT and Method for Operating a Clinical pTX System
    2.
    发明申请
    MRT and Method for Operating a Clinical pTX System 审中-公开
    MRT和操作临床pTX系统的方法

    公开(公告)号:US20160041250A1

    公开(公告)日:2016-02-11

    申请号:US14819418

    申请日:2015-08-05

    IPC分类号: G01R33/58 G01R33/28

    摘要: A method and a magnetic resonance tomography (MRT) system are provided. The MRT system includes a controller configured to store a transmit vector that is established on a local-coil-specific basis. The transmit vector, for a specific local coil, indicates with which amplitudes and phases, transmit elements of the local coil may be controlled by a transmit device. The controller is configured to initiate a patient-specific calibration measurement on a patient to generate patient-specific calibration data representing a field distribution. The controller is also configured to determine deviations in the patient-specific calibration data from the stored transmit vector established on a local-coil-specific basis. The patient-specific calibration data is generated in the patient-specific calibration measurement on the patient and represents a field distribution. An imaging MRT measurement is not allowed if deviations exceed a threshold value, but is otherwise performed and is monitored by a monitoring device.

    摘要翻译: 提供了一种方法和磁共振断层摄影(MRT)系统。 MRT系统包括被配置为存储在局部线圈特定基础上建立的发射矢量的控制器。 用于特定局部线圈的发射矢量指示可以由发射装置控制本地线圈的发射元件的哪些振幅和相位。 控制器被配置为启动对患者的患者特异性校准测量,以生成表示场分布的患者特异性校准数据。 控制器还被配置为根据在局部线圈特定基础上建立的存储的传输矢量来确定患者特定校准数据中的偏差。 患者特异性校准数据是在患者特定的患者的校准测量中生成的,并且表示场分布。 如果偏差超过阈值,否则进行成像MRT测量,否则执行并由监控设备监控。

    MRT and method for operating a clinical pTX system

    公开(公告)号:US10830857B2

    公开(公告)日:2020-11-10

    申请号:US14819418

    申请日:2015-08-05

    摘要: A method and a magnetic resonance tomography (MRT) system are provided. The MRT system includes a controller configured to store a transmit vector that is established on a local-coil-specific basis. The transmit vector, for a specific local coil, indicates with which amplitudes and phases, transmit elements of the local coil may be controlled by a transmit device. The controller is configured to initiate a patient-specific calibration measurement on a patient to generate patient-specific calibration data representing a field distribution. The controller is also configured to determine deviations in the patient-specific calibration data from the stored transmit vector established on a local-coil-specific basis. The patient-specific calibration data is generated in the patient-specific calibration measurement on the patient and represents a field distribution. An imaging MRT measurement is not allowed if deviations exceed a threshold value, but is otherwise performed and is monitored by a monitoring device.

    Magnetic Resonance System with Whole-Body Transmitting Array
    7.
    发明申请
    Magnetic Resonance System with Whole-Body Transmitting Array 审中-公开
    具有全身传输阵列的磁共振系统

    公开(公告)号:US20140347054A1

    公开(公告)日:2014-11-27

    申请号:US14283764

    申请日:2014-05-21

    IPC分类号: G01R33/38

    摘要: A magnetic resonance system includes a basic magnet that surrounds a cylindrical examination volume of the magnetic resonance system, the cylindrical examination volume defining a longitudinal axis, and a send structure configured to generate a high frequency excitation field (B1) in the examination volume. The high frequency excitation field is configured to excite an object to be examined in the examination volume, such that the object emits magnetic resonance signals. The basic magnet is configured to generate a basic magnetic field (B0) in the examination volume that is constant over time and at least substantially homogeneous spatially. The send structure includes at least first transmitting antennae and second transmitting antennae that are configured to load the examination volume with the high frequency excitation field (B1).

    摘要翻译: 磁共振系统包括围绕磁共振系统的圆柱形检查体积的基本磁体,限定纵向轴线的圆柱形检查体积和被配置为在检查体积中产生高频激励场(B1)的发送结构。 高频激励场被配置为在检查体积中激发要检查的物体,使得物体发射磁共振信号。 基本磁体被配置为在检查体积中产生基本磁场(B0),该基本磁场在时间上是恒定的并且在空间上至少基本上均匀。 发送结构至少包括第一发射天线和第二发射天线,其被配置为用高频激励场(B1)加载检查音量。

    Cylindrical Gradient Coil Arrangement for a Magnetic Resonance Device
    8.
    发明申请
    Cylindrical Gradient Coil Arrangement for a Magnetic Resonance Device 有权
    用于磁共振器件的圆柱梯度线圈布置

    公开(公告)号:US20130229183A1

    公开(公告)日:2013-09-05

    申请号:US13783293

    申请日:2013-03-02

    IPC分类号: G01R33/34

    CPC分类号: G01R33/3403 G01R33/3856

    摘要: A cylindrical gradient coil arrangement is provided for a magnetic resonance device. The arrangement includes at least one conductive structure that forms at least one gradient coil and a cooling device that uses a cooling fluid to cool the at least one conductive structure. The arrangement includes an outer carrier structure and an inner carrier structure. The outer carrier structure includes two tubular, coaxial outer sections with different diameters. The inner, tubular carrier structure is arranged between and coaxially with the outer sections. The conductive structure is placed on the inner carrier structure. The inner carrier structure is spaced from the outer sections by a clearance. The clearance forms a cooling channel through which the cooling fluid of the cooling device may flow. The inner carrier structure is fastened to the outer carrier structure at least in a point-by-point manner.

    摘要翻译: 提供了一种用于磁共振装置的圆柱形梯度线圈装置。 该装置包括形成至少一个梯度线圈的至少一个导电结构和使用冷却流体来冷却至少一个导电结构的冷却装置。 该装置包括外部载体结构和内部载体结构。 外部载体结构包括具有不同直径的两个管状同轴外部部分。 内部管状载体结构布置在外部部分之间并且与外部部分同轴。 导电结构放置在内部载体结构上。 内部载体结构与外部部分间隔开间隙。 间隙形成冷却装置的冷却流体可流过的冷却通道。 内部载体结构至少以逐点方式固定到外部载体结构。

    Gradient coil and method to manufacture a gradient coil
    9.
    发明授权
    Gradient coil and method to manufacture a gradient coil 有权
    梯度线圈和制造梯度线圈的方法

    公开(公告)号:US07888938B2

    公开(公告)日:2011-02-15

    申请号:US12354299

    申请日:2009-01-15

    IPC分类号: G01V3/00

    CPC分类号: G01R33/3858 Y10T29/49071

    摘要: In a gradient coil and a method to manufacture a gradient coil for a magnetic resonance apparatus, the gradient coil has at least one saddle coil, the saddle coil having a spatially shaped, electrically conductive plate with a line-shaped recess penetrating the plate. Conductor structures that create a gradient magnetic field in an examination region when a current signal flows therethrough are formed by the recess and by the shaping of the plate. The recess is filled with an electrically insulating material before implementation of the spatial shaping.

    摘要翻译: 在梯度线圈和制造磁共振装置的梯度线圈的方法中,梯度线圈具有至少一个鞍形线圈,鞍形线圈具有空间形状的导电板,其具有贯穿该板的线状凹部。 通过凹部和板的成形,形成当电流信号流过时在检查区域产生梯度磁场的导体结构。 在实施空间成形之前,凹部填充有电绝缘材料。

    Assembly for generating magnetic fields in a magnetic resonance tomography apparatus that allows use of a superconducting gradient field device
    10.
    发明授权
    Assembly for generating magnetic fields in a magnetic resonance tomography apparatus that allows use of a superconducting gradient field device 有权
    用于在允许使用超导梯度场设备的磁共振断层摄影装置中产生磁场的装置

    公开(公告)号:US07403003B2

    公开(公告)日:2008-07-22

    申请号:US11523427

    申请日:2006-09-19

    IPC分类号: G01V3/00

    摘要: An assembly for magnetic field generation in a magnetic resonance tomography apparatus has a device for generation of a basic magnetic field, a vacuum vessel surrounding the basic field device and a device for generation of at least one gradient magnetic field. The assembly has a volume with a reduced magnetic field strength in a region between windings of at least one superconducting coil of the basic field device and a non-conductive wall of the vacuum vessel. The gradient field device is fashioned as a superconductor and is at least partially accommodated in this volume.

    摘要翻译: 在磁共振断层摄影装置中用于产生磁场的组件具有用于产生基本磁场的装置,围绕基本现场装置的真空容器和用于产生至少一个梯度磁场的装置。 组件具有在基本现场设备的至少一个超导线圈的绕组与真空容器的非导电壁之间的区域中具有降低的磁场强度的体积。 梯度场设备被形成为超导体并且至少部分地容纳在该体积中。