System and Method for Automatic Detection of End of Diastole and End of Systole Image Frames in X-Ray Ventricular Angiography
    1.
    发明申请
    System and Method for Automatic Detection of End of Diastole and End of Systole Image Frames in X-Ray Ventricular Angiography 有权
    X射线心室造影术自动检测收缩末端和收缩期图像框架的系统和方法

    公开(公告)号:US20090028412A1

    公开(公告)日:2009-01-29

    申请号:US12026145

    申请日:2008-02-05

    IPC分类号: G06K9/46

    摘要: End-diastolic and end-systolic image frames are automatically selected on a real-time basis from a sequence of X-ray ventricular angiogram images by modeling the angiogram images by a dynamic graphical model and estimating a posterior probability density of the ventricular area in each angiogram image frame using Bayesian probability density propagation and adaptive background modeling. Then, a variation curve plot of expectation values of the posterior probability density of the ventricular area of each angiogram image frame is generated in which peaks and valleys in the variation curve correspond to end-diastolic and end-systolic angiogram image frames, respectively.

    摘要翻译: 通过动态图形模型对血管造影图像进行建模,并通过动态图形模型对每个心室区域的后验概率密度进行估计,从X射线心室血管造影图像序列中实时自动选择舒张末期和收缩末期图像帧 使用贝叶斯概率密度传播和自适应背景建模的血管造影图像帧。 然后,生成每个血管造影图像帧的心室面积的后验概率密度的期望值的变化曲线图,其中变化曲线中的峰和谷分别对应于舒张末期和收缩末期血管造影图像帧。

    System and method for automatic detection of end of diastole and end of systole image frames in X-ray ventricular angiography
    2.
    发明授权
    System and method for automatic detection of end of diastole and end of systole image frames in X-ray ventricular angiography 有权
    用于X线心室血管造影术自动检测舒张末期和收缩期图像帧结束的系统和方法

    公开(公告)号:US08077953B2

    公开(公告)日:2011-12-13

    申请号:US12026145

    申请日:2008-02-05

    IPC分类号: G06K9/00

    摘要: End-diastolic and end-systolic image frames are automatically selected on a real-time basis from a sequence of X-ray ventricular angiogram images by modeling the angiogram images by a dynamic graphical model and estimating a posterior probability density of the ventricular area in each angiogram image frame using Bayesian probability density propagation and adaptive background modeling. Then, a variation curve plot of expectation values of the posterior probability density of the ventricular area of each angiogram image frame is generated in which peaks and valleys in the variation curve correspond to end-diastolic and end-systolic angiogram image frames, respectively.

    摘要翻译: 通过动态图形模型对血管造影图像进行建模,并通过动态图形模型对每个心室区域的后验概率密度进行估计,从X射线心室血管造影图像序列中实时自动选择舒张末期和收缩末期图像帧 使用贝叶斯概率密度传播和自适应背景建模的血管造影图像帧。 然后,生成每个血管造影图像帧的心室面积的后验概率密度的期望值的变化曲线图,其中变化曲线中的峰和谷分别对应于舒张末期和收缩末期血管造影图像帧。

    MODULAR SYSTEM FOR A BACK REAMER AND METHOD
    3.
    发明申请
    MODULAR SYSTEM FOR A BACK REAMER AND METHOD 有权
    用于后备箱的模块化系统和方法

    公开(公告)号:US20100252326A1

    公开(公告)日:2010-10-07

    申请号:US12489324

    申请日:2009-06-22

    IPC分类号: E21B7/28 E21B10/26

    CPC分类号: E21B7/28 E21B10/28 Y10T408/86

    摘要: A modular back reamer to be used in subterranean drilling includes a drive stem connected to a drill string and configured to support a reamer body, the reamer body providing a plurality of receptacles, wherein the receptacles are configured to retain a cutting leg assembly at varying heights within a predetermined range, and a plurality of shims engaged within the receptacles to secure the cutting leg assemblies at a specified height within the predetermined range, wherein the cutting leg assembly is secured to the reamer body with at least one mechanical fastener.

    摘要翻译: 用于地下钻孔的模块化后铰刀包括连接到钻柱并被配置为支撑铰刀主体的驱动杆,所述铰刀主体提供多个插座,其中所述插座构造成将切割腿组件保持在不同的高度 在预定范围内的多个垫片和接合在容器内的多个垫片,以将切割腿组件固定在预定范围内的指定高度,其中切割腿组件通过至少一个机械紧固件固定到扩孔器主体。

    Modular system for a back reamer and method
    4.
    发明授权
    Modular system for a back reamer and method 有权
    用于后铰刀和方法的模块化系统

    公开(公告)号:US08177000B2

    公开(公告)日:2012-05-15

    申请号:US12489324

    申请日:2009-06-22

    IPC分类号: E21B10/633 E21B10/28

    CPC分类号: E21B7/28 E21B10/28 Y10T408/86

    摘要: A modular back reamer to be used in subterranean drilling includes a drive stem connected to a drill string and configured to support a reamer body, the reamer body providing a plurality of receptacles, wherein the receptacles are configured to retain a cutting leg assembly at varying heights within a predetermined range, and a plurality of shims engaged within the receptacles to secure the cutting leg assemblies at a specified height within the predetermined range, wherein the cutting leg assembly is secured to the reamer body with at least one mechanical fastener.

    摘要翻译: 用于地下钻孔的模块化后铰刀包括连接到钻柱并被配置为支撑铰刀主体的驱动杆,所述铰刀主体提供多个插座,其中所述插座构造成将切割腿组件保持在不同的高度 在预定范围内的多个垫片和接合在容器内的多个垫片,以将切割腿组件固定在预定范围内的指定高度,其中切割腿组件通过至少一个机械紧固件固定到扩孔器主体。

    System for Determining Patient Heart related Parameters for use in Heart Imaging
    5.
    发明申请
    System for Determining Patient Heart related Parameters for use in Heart Imaging 审中-公开
    用于确定用于心脏成像的患者心脏相关参数的系统

    公开(公告)号:US20110105931A1

    公开(公告)日:2011-05-05

    申请号:US12247630

    申请日:2008-10-08

    IPC分类号: A61B5/029 A61B5/02

    摘要: A system uses integrated spatio-temporal analysis in X-ray angiography, for example, by using spatial information within each image frame and temporal information between image frames to provide robust and accurate estimation of stroke area and volume, two and three dimensional ejection fraction and to accommodate patient heart variation. A system determines patient heart related parameters for use in patient heart imaging examination. An image data processor processes data representing multiple cardiac images of a patient over multiple heart beat cycles of the patient to derive data representing a distribution curve of a heart section area over multiple heart beat cycle times and indicating heart section area change over a heart beat cycle. An area processor determines a heart section area in response to user command. Also a computation processor determines a heart function parameter in response to the determined heart section area and the indicated heart section area change.

    摘要翻译: 系统在X射线血管造影中使用综合的时空分析,例如通过使用每个图像帧内的空间信息和图像帧之间的时间信息来提供对中风面积和体积的鲁棒和准确的估计,二维和三维射血分数,以及 以适应患者的心脏变异。 系统确定患者心脏相关参数用于患者心脏图像检查。 图像数据处理器处理表示患者的多个心跳周期的患者的多个心脏图像的数据,以导出表示多个心跳周期时间的心脏区域区域的分布曲线的数据,并且指示心脏节段周期上的心脏区域面积变化 。 区域处理器响应于用户命令确定心脏区域区域。 此外,计算处理器响应于确定的心脏区域区域和所指示的心脏区域区域变化来确定心脏功能参数。