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    • 2. 发明授权
    • Varying blipped trajectory in MRI
    • 磁共振成像中不稳定的轨迹
    • US09069050B2
    • 2015-06-30
    • US13444887
    • 2012-04-12
    • Jeffrey DuerkMark GriswoldDaniel NeumannCharlie Yi Wang
    • Jeffrey DuerkMark GriswoldDaniel NeumannCharlie Yi Wang
    • G01R33/561G01R33/48
    • G01R33/4824G01R33/561
    • Apparatus, methods, and other embodiments associated with magnetic resonance imaging (MRI) blipped trajectories having varying blip amplitudes are described. One example method includes controlling an MRI apparatus to produce a set of blipped trajectories including a first blipped trajectory having a first blip amplitude and a second, different blipped trajectory having a second, different blip amplitude. The blip amplitudes may be based on a relationship between a trajectory and a reference. The relationship may be, for example, a rotation angle. The rotation angle may be a proxy for information including a gradient trajectory speed associated with a blipped trajectory or an amount of unused gradient energy available while producing the blipped trajectory. The blip amplitudes may be selected to produce incoherent sampling during an MRI acquisition that uses the blipped trajectories. In one example, readout directions may be altered between trajectories to reduce regularity in k-space.
    • 描述了与磁共振成像(MRI)相关联的装置,方法和其它实施例,其具有变化的幅度幅度的闪烁的轨迹。 一个示例性方法包括控制MRI设备以产生一组闪烁的轨迹,包括具有第一个blip幅度的第一个闪烁的轨迹和具有第二个不同的blip幅度的第二个不同的blipped轨迹。 眨眼幅度可以基于轨迹和参考之间的关系。 该关系可以是例如旋转角度。 旋转角度可以是用于包括与闪烁的轨迹相关联的梯度轨迹速度或可用的未使用的梯度能量的信息的代理,同时产生闪烁的轨迹。 可以选择blip振幅,以在使用抖动轨迹的MRI采集期间产生非相干采样。 在一个示例中,可以在轨迹之间改变读出方向以减小k空间的规律性。
    • 3. 发明申请
    • Varying Blipped Trajectory
    • 变化的弹跳轨迹
    • US20130271131A1
    • 2013-10-17
    • US13444887
    • 2012-04-12
    • Jeffrey DUERKMark GriswoldDaniel NeumannCharlie Yi Wang
    • Jeffrey DUERKMark GriswoldDaniel NeumannCharlie Yi Wang
    • G01R33/48
    • G01R33/4824G01R33/561
    • Apparatus, methods, and other embodiments associated with magnetic resonance imaging (MRI) blipped trajectories having varying blip amplitudes are described. One example method includes controlling an MRI apparatus to produce a set of blipped trajectories including a first blipped trajectory having a first blip amplitude and a second, different blipped trajectory having a second, different blip amplitude. The blip amplitudes may be based on a relationship between a trajectory and a reference. The relationship may be, for example, a rotation angle. The rotation angle may be a proxy for information including a gradient trajectory speed associated with a blipped trajectory or an amount of unused gradient energy available while producing the blipped trajectory. The blip amplitudes may be selected to produce incoherent sampling during an MRI acquisition that uses the blipped trajectories. In one example, readout directions may be altered between trajectories to reduce regularity in k-space.
    • 描述了与磁共振成像(MRI)相关联的装置,方法和其它实施例,其具有变化的幅度幅度的闪烁的轨迹。 一个示例性方法包括控制MRI设备以产生一组闪烁的轨迹,其包括具有第一个blip幅度的第一个闪烁的轨迹和具有第二个不同的blip幅度的第二个不同的blipped轨迹。 眨眼幅度可以基于轨迹和参考之间的关系。 该关系可以是例如旋转角度。 旋转角度可以是用于包括与闪烁的轨迹相关联的梯度轨迹速度或可用的未使用的梯度能量的信息的代理,同时产生闪烁的轨迹。 可以选择blip振幅,以在使用抖动轨迹的MRI采集期间产生非相干采样。 在一个示例中,可以在轨迹之间改变读出方向以减小k空间的规律性。
    • 5. 发明申请
    • Hand held cleaning utensil
    • 手持清洁用具
    • US20060070197A1
    • 2006-04-06
    • US10535594
    • 2003-09-19
    • Andy MayDaniel Neumann
    • Andy MayDaniel Neumann
    • A46B5/00A47L13/42B25G1/00
    • B25G1/04
    • The present invention provides a hand held cleaning utensil having an extendable elongate handle with a working head at one end of the handle, the handle being assembled of at least a first length to which the working head is mounted and a second length that is coupled to the end of the first length remote from the working head, and which is adapted to be moved from a first position, in which the second length is stowed alongside or substantially coaxial with the first length but not obstructing the working head so that the utensil may be used, to a second position, in which the second length is substantially aligned with the first length to provide an extended overall handle length.
    • 本发明提供了一种手持式清洁用具,其具有可延伸的细长手柄,在手柄的一端具有工作头,手柄至少安装有工作头的第一长度,第二长度被耦合到 所述第一长度的端部远离所述工作头部,并且其适于从第一位置移动,其中所述第二长度与所述第一长度旁边或基本上同轴地存放,但不妨碍所述工作头,使得所述器具可以 被使用到第二位置,其中第二长度基本上与第一长度对齐以提供延长的整体手柄长度。