X-RAY FILTRATION
    4.
    发明申请
    X-RAY FILTRATION 审中-公开
    X射线过滤

    公开(公告)号:US20170011815A1

    公开(公告)日:2017-01-12

    申请号:US14793432

    申请日:2015-07-07

    CPC classification number: G01N23/046 G01N2223/313 G01N2223/419 G21K1/025

    Abstract: An X-ray filter assembly is disclosed having a stack of X-ray attenuating sheets that are angled so as to have a focus point. When implemented in an imaging system, the focus point of the filter assembly is spatially offset (e.g., behind) the X-ray emission location. The filter assembly may be used (e.g., translated, rotated, and so forth) to adjust the intensity profile of the X-rays seen in an imaging volume.

    Abstract translation: 公开了一种X射线滤光器组件,其具有倾斜以便具有焦点的X射线衰减片的堆叠。 当在成像系统中实现时,过滤器组件的焦点在X射线发射位置处被空间偏移(例如在后面)。 可以使用(例如,平移,旋转等等)的过滤器组件来调节在成像体积中看到的X射线的强度分布。

    METHOD FOR TOMOGRAPHIC RECONSTRUCTION
    5.
    发明申请
    METHOD FOR TOMOGRAPHIC RECONSTRUCTION 有权
    方法重建

    公开(公告)号:US20160210762A1

    公开(公告)日:2016-07-21

    申请号:US14597896

    申请日:2015-01-15

    CPC classification number: G06T11/006 G06T2211/421 G06T2211/424 G06T2211/432

    Abstract: The present approaches relate to frequency-split iterative reconstruction approaches. In some embodiment, such approaches provide for the combination of the low frequency components of an analytical reconstruction (e.g., a filtered back projection) and the high frequency components of an iterative reconstruction. In certain embodiments, frequency-split iterative reconstruction is used for generating region of interest images.

    Abstract translation: 目前的方法涉及频率分割迭代重建方法。 在一些实施例中,这种方法提供了分析重构(例如,滤波反投影)的低频分量与迭代重建的高频分量的组合。 在某些实施例中,使用频率分割迭代重构来产生感兴趣区域图像。

    SYSTEMS AND METHODS FOR ADJUSTABLE VIEW FREQUENCY COMPUTED TOMOGRAPHY IMAGING
    6.
    发明申请
    SYSTEMS AND METHODS FOR ADJUSTABLE VIEW FREQUENCY COMPUTED TOMOGRAPHY IMAGING 有权
    用于可调节视频频率计算机图像成像的系统和方法

    公开(公告)号:US20160038113A1

    公开(公告)日:2016-02-11

    申请号:US14451616

    申请日:2014-08-05

    CPC classification number: A61B6/032 A61B6/037 A61B6/488 A61B6/542

    Abstract: An imaging system includes a computed tomography (CT) acquisition unit and a processing unit. The CT acquisition unit includes an X-ray source and a CT detector configured to collect CT imaging data of an object to be imaged. The X-ray source and CT detector are configured to be rotated about the object to be imaged and to collect a series of views of the object as the X-ray source and CT detector rotate about the object to be imaged. The processing unit is operably coupled to the CT acquisition unit and configured to control the CT acquisition unit to vary a view duration for the views of the series. The view duration for a particular view defines an imaging information acquisition period for the particular view, wherein the series of views includes a first group of views having a first view duration and a second group of views having a second view duration that is different than the first view duration.

    Abstract translation: 成像系统包括计算机断层摄影(CT)获取单元和处理单元。 CT采集单元包括:X射线源和CT检测器,被配置为收集待成像对象的CT成像数据。 X射线源和CT检测器被配置为围绕待成像对象旋转,并且当X射线源和CT检测器围绕待成像对象旋转时,收集对象的一系列视图。 处理单元可操作地耦合到CT采集单元并且被配置为控制CT采集单元以改变该系列视图的视图持续时间。 特定视图的视图持续时间定义了特定视图的成像信息获取周期,其中,所述一系列视图包括具有第一视图持续时间的第一组视图和具有不同于第二视图持续时间的第二视图持续时间 第一次观看时间。

    DATA-BASED SCAN GATING
    7.
    发明申请

    公开(公告)号:US20200163639A1

    公开(公告)日:2020-05-28

    申请号:US16200175

    申请日:2018-11-26

    Abstract: In accordance with the present disclosure, the present technique finds a diagnostic scan timing for a non-static object (e.g., a heart or other dynamic object undergoing motion) from raw scan data, as opposed to reconstructed image data. To find the scan timing, a monitoring scan of a patient's heart is performed. In the monitoring scan, the patient dose may be limited or minimized. As the projection data is acquired during such a monitoring scan, the projection data may be subjected to sinogram analysis in a concurrent or real-time manner to determine when to start (or trigger) the diagnostic scan.

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