Method for obtaining amplitude and phase dependencies of RF pulses for spatially selective excitation
    3.
    发明申请
    Method for obtaining amplitude and phase dependencies of RF pulses for spatially selective excitation 有权
    用于获得用于空间选择性激发的RF脉冲的幅度和相位依赖性的方法

    公开(公告)号:US20100253336A1

    公开(公告)日:2010-10-07

    申请号:US12659926

    申请日:2010-03-25

    IPC分类号: G01R33/44

    摘要: A method for obtaining amplitude and phase dependencies of radio frequency pulses, which are irradiated within the scope of a main magnetic resonance experiment for generating a predetermined n-dimensional spatial distribution (n>=1) of transverse magnetization in an object by means of at least one radio frequency transmitting antenna of a magnetic resonance measuring system in combination with spatially and temporally varying additional magnetic fields which are superimposed on the static and homogeneous base field of the magnetic resonance measuring system and change the transverse magnetization phase in the object in dependence on location and time is characterized in that, prior to performance of the main experiment, a preparational measurement is performed in which the change with time of the transverse magnetization phase in the object under the action of the additional magnetic fields is measured in a position-resolved fashion and the amplitude and phase dependencies of the radio frequency pulses for the main experiment are calculated on the basis of this change with time of the transverse magnetization phase, which is measured in a position-resolved fashion. In this fashion, experimental imperfections in the form of unintentional additional magnetic fields can be measured, taken into consideration and compensated for.

    摘要翻译: 一种用于获得射频脉冲的幅度和相位依赖性的方法,其被辐射在主磁共振实验的范围内,用于通过在线对象中产生物体中横向磁化的预定的n维空间分布(n> = 1) 磁共振测量系统的至少一个射频发射天线与空间和时间上变化的附加磁场相结合,该附加磁场叠加在磁共振测量系统的静态和均匀基极上,并且依赖于 位置和时间的特征在于,在主实验执行之前,进行准备测量,其中在附加磁场的作用下物体中的横向磁化相位随时间的变化在位置分辨 时尚和辐射的幅度和相位依赖性 基于这种以横向磁化相的时间的变化计算主实验的频率脉冲,其以位置分辨的方式测量。 以这种方式,可以测量和补偿无意的附加磁场形式的实验缺陷。

    Method for determining the spatial distribution of magnetic resonance signals in subvolumes of an object under examination
    4.
    发明申请
    Method for determining the spatial distribution of magnetic resonance signals in subvolumes of an object under examination 有权
    用于确定检查对象的子体积中的磁共振信号的空间分布的方法

    公开(公告)号:US20150084627A1

    公开(公告)日:2015-03-26

    申请号:US14009116

    申请日:2012-04-18

    摘要: A method for determining the spatial distribution of magnetic resonance signals from at least one of N subvolumes predefines a reception encoding scheme and determines unique spatial encoding for at least one of the subvolumes but not for the entire volume under examination (UV). A transmission encoding scheme is also defined, wherein encoding is effected via the amplitude and/or phase of the transverse magnetization. The temporal amplitude and phase profile of the RF pulses is then calculated and each reception encoding step is carried out I times with variations according to the I transmission encoding steps in the transmission encoding scheme. The method makes it possible to largely restrict the spatially resolving MR signal encoding and image reconstruction to subvolumes of the object under examination without the achievable image quality sensitively depending on imperfections in the MR apparatus.

    摘要翻译: 用于确定来自N个子卷中的至少一个的磁共振信号的空间分布的方法预先定义接收编码方案,并且确定至少一个子卷的唯一的空间编码,而不是对于检查中的整个体积(UV)。 还定义了传输编码方案,其中通过横向磁化的幅度和/或相位实现编码。 然后计算RF脉冲的时间幅度和相位曲线,并且根据传输编码方案中的I传输编码步骤,根据变化执行每个接收编码步骤I次。 该方法使得可以根据MR设备中的缺陷,将空间分辨的MR信号编码和图像重建大大地限制在被检查物体的子体积上,而不会使可实现的图像质量敏感。

    Method for obtaining amplitude and phase dependencies of RF pulses for spatially selective excitation
    5.
    发明授权
    Method for obtaining amplitude and phase dependencies of RF pulses for spatially selective excitation 有权
    用于获得用于空间选择性激发的RF脉冲的幅度和相位依赖性的方法

    公开(公告)号:US08508224B2

    公开(公告)日:2013-08-13

    申请号:US12659926

    申请日:2010-03-25

    IPC分类号: G01V3/00

    摘要: A method for obtaining amplitude and phase dependencies of radio frequency pulses, which are irradiated within the scope of a main magnetic resonance experiment for generating a predetermined n-dimensional spatial distribution (n>=1) of transverse magnetization in an object by means of at least one radio frequency transmitting antenna of a magnetic resonance measuring system in combination with spatially and temporally varying additional magnetic fields which are superimposed on the static and homogeneous base field of the magnetic resonance measuring system and change the transverse magnetization phase in the object in dependence on location and time is characterized in that, prior to performance of the main experiment, a preparational measurement is performed in which the change with time of the transverse magnetization phase in the object under the action of the additional magnetic fields is measured in a position-resolved fashion and the amplitude and phase dependencies of the radio frequency pulses for the main experiment are calculated on the basis of this change with time of the transverse magnetization phase, which is measured in a position-resolved fashion. In this fashion, experimental imperfections in the form of unintentional additional magnetic fields can be measured, taken into consideration and compensated for.

    摘要翻译: 一种用于获得射频脉冲的幅度和相位依赖性的方法,其被辐射在主磁共振实验的范围内,用于通过在线对象中产生物体中横向磁化的预定的n维空间分布(n> = 1) 磁共振测量系统的至少一个射频发射天线与空间和时间上变化的附加磁场相结合,该附加磁场叠加在磁共振测量系统的静态和均匀基极上,并且依赖于 位置和时间的特征在于,在主实验执行之前,进行准备测量,其中在附加磁场的作用下物体中的横向磁化相位随时间的变化在位置分辨 时尚和辐射的幅度和相位依赖性 基于这种以横向磁化相的时间的变化计算主实验的频率脉冲,其以位置分辨的方式测量。 以这种方式,可以测量和补偿无意的附加磁场形式的实验缺陷。

    Modular system for assembling electromechanically adjustable supporting devices for upholstery of furniture for sitting or reclining
    6.
    发明申请
    Modular system for assembling electromechanically adjustable supporting devices for upholstery of furniture for sitting or reclining 审中-公开
    用于组装用于坐着或斜倚的家具装饰的机电可调支撑装置的模块化系统

    公开(公告)号:US20070067913A1

    公开(公告)日:2007-03-29

    申请号:US11529588

    申请日:2006-09-29

    IPC分类号: A47B7/02

    摘要: Modular system for assembling electromechanically adjustable supporting devices for upholstery of furniture for sitting or lying upon, particularly for bed mattresses. The supporting devices, when assembled, have at least two supporting parts, which can be displaced relative to one another and which serve to support the upholstery. Modular system includes first and second longitudinal member subassemblies joined together, forming a base body of supporting device. Modular system includes an electromechanical drive for displacing the supporting parts relative to one another, and a control device for controlling the electromechanical drive. First and second electromechanical drive units are assigned to respective first and second longitudinal member subassemblies, and the first and second electromechanical drive units are usable together and brought into active connection with the same supporting part of the supporting device for displacing it, and the control device synchronously controls the first and second electromechanical drive units.

    摘要翻译: 用于组装机电可调支撑装置的模块化系统,用于家具的装饰用于坐或躺在床上,特别是用于床垫。 支撑装置在组装时具有至少两个支撑部件,该支撑部件可以相对于彼此移位并且用于支撑装饰物。 模块化系统包括连接在一起的第一和第二纵向构件子组件,形成支撑装置的基体。 模块化系统包括用于相对于彼此移动支撑部件的机电驱动器,以及用于控制机电驱动的控制装置。 第一和第二机电驱动单元被分配到相应的第一和第二纵向构件子组件,并且第一和第二机电驱动单元可以一起使用并且与用于移动支撑装置的支撑装置的相同支撑部分主动连接,并且控制装置 同步地控制第一和第二机电驱动单元。

    Modular system for assembling a motorized adjustable support apparatus for the upholstery of furniture for sitting and/or lying
    8.
    发明申请
    Modular system for assembling a motorized adjustable support apparatus for the upholstery of furniture for sitting and/or lying 失效
    用于组装用于坐着和/或躺着的家具装饰的电动可调节支撑装置的模块化系统

    公开(公告)号:US20060130236A1

    公开(公告)日:2006-06-22

    申请号:US11293494

    申请日:2005-12-05

    IPC分类号: A61G7/015

    摘要: Modular system for assembling a motorized adjustable support apparatus for the upholstery of a piece of furniture for one of sitting and lying includes a first support element including a first longitudinal rail assembly, and a second support element including a second longitudinal rail assembly. The first and second longitudinal rail assemblies are detachably connected by a connecting element to form a base of the support apparatus, in use. The assembled adjustable support apparatus includes the two support elements adjustable relative to one another for supporting the upholstery. A connecting shaft is provided for transmitting the rotation of a first pivot shaft connected to the first rail assembly to a third pivot shaft connected to the second rail assembly. Ends of the connecting shaft are detachably insertable into recesses defined in the first and third pivot shafts, and are securable against rotation.

    摘要翻译: 用于组装用于坐着和躺着的一件家具的机动化可调节支撑装置的模块化系统包括包括第一纵向导轨组件的第一支撑元件和包括第二纵向导轨组件的第二支撑元件。 第一和第二纵向导轨组件通过连接元件可拆卸地连接,以在使用中形成支撑装置的底座。 组装的可调节支撑装置包括可相对于彼此调节的两个支撑元件,用于支撑内饰。 连接轴被设置用于将连接到第一轨道组件的第一枢转轴的旋转传递到连接到第二轨道组件的第三枢轴。 连接轴的端部可拆卸地插入到限定在第一和第三枢转轴中的凹部中,并且可防止旋转。