Automatic object tracking in a region of interest
    1.
    发明申请
    Automatic object tracking in a region of interest 审中-公开
    在感兴趣的区域中自动对象跟踪

    公开(公告)号:US20080125649A1

    公开(公告)日:2008-05-29

    申请号:US11522594

    申请日:2006-09-18

    IPC分类号: H05G1/02

    摘要: A medical treatment system is described having an imaging device and a patient examination table. At least one of the imaging device or the patient table has a motorized or hydraulic mechanism for moving the imaging device and the patient examination table relative to each other. A processor tracks the position of a catheter or a bolus of contrast enhancing material so that the catheter or bolus is maintained within the field of view of the imaging system, or within the displayed image where the images have been previously obtained. The position of the catheter may be determined by image analysis or magnetic or acoustic means, and the position of the bolus may be obtained by image analysis.

    摘要翻译: 描述了具有成像装置和患者检查台的医疗系统。 成像装置或患者台中的至少一个具有用于相对于彼此移动成像装置和患者检查台的电动或液压机构。 处理器跟踪导管或大量对比度增强材料的位置,使得导管或推注维持在成像系统的视野内,或者在预先获得图像的显示图像内。 导管的位置可以通过图像分析或磁性或声学手段来确定,并且可以通过图像分析获得推注的位置。

    X-ray diagnostics installation
    4.
    发明授权
    X-ray diagnostics installation 失效
    X光诊断安装

    公开(公告)号:US5559850A

    公开(公告)日:1996-09-24

    申请号:US541118

    申请日:1995-10-11

    IPC分类号: H04N5/32 H05G1/60 H05G1/64

    CPC分类号: H04N5/32 H05G1/60

    摘要: An x-ray diagnostics installation has an x-ray generator, an x-ray tube and an x-ray image intensifier to which a video camera with a CCD image sensor is coupled. The video camera includes a control generator that is connected to a control output of the x-ray generator and to the CCD image sensor, and controls the latter such that the read-out clock is interrupted synchronously with the video clock on the basis of a signal supplied by the x-ray generator.

    摘要翻译: x射线诊断装置具有x射线发生器,x射线管和x射线图像增强器,与CCD图像传感器相连的摄像机被耦合到该X射线管。 视频摄像机包括控制发生器,其连接到X射线发生器和CCD图像传感器的控制输出,并且控制发光器,使得读出时钟基于视频时钟与视频时钟同步地中断 由x射线发生器提供的信号。

    Method, x-ray tube and imaging system for adjusting the position of the x-ray tube focus
    6.
    发明授权
    Method, x-ray tube and imaging system for adjusting the position of the x-ray tube focus 有权
    方法,x射线管和成像系统,用于调整x射线管焦点的位置

    公开(公告)号:US07599472B2

    公开(公告)日:2009-10-06

    申请号:US11863518

    申请日:2007-09-28

    IPC分类号: H01J35/30

    摘要: In order to reduce the influence of magnetic interference fields on the position of an x-ray focus of an x-ray tube, the deviation of a current focus position from a target focus position or of a measurement value proportional to the deviation is determined, the focus position by reducing the deviation of the current focus position from the target focus position, or the measurement value proportional to the deviation, on the basis of the determined deviation or the determined measurement value proportional to the deviation. The deviation of the current focus position from the target focus position or the measurement value proportional to the deviation is regulated to a value of essentially zero via repeated determination and correction.

    摘要翻译: 为了减小磁干扰场对X射线管的X射线焦点的位置的影响,确定当前聚焦位置与目标对焦位置的偏差或与偏差成比例的测量值, 基于所确定的偏差或与偏差成比例的确定的测量值,减小当前焦点位置与目标对焦位置的偏差或与偏差成比例的测量值的聚焦位置。 通过重复确定和校正,将当前焦点位置与目标对焦位置或与偏差成比例的测量值的偏差调节为基本为零的值。

    METHOD, X-RAY TUBE AND IMAGING SYSTEM FOR ADJUSTING THE POSITION OF THE X-RAY TUBE FOCUS
    7.
    发明申请
    METHOD, X-RAY TUBE AND IMAGING SYSTEM FOR ADJUSTING THE POSITION OF THE X-RAY TUBE FOCUS 有权
    方法,用于调整X射线管聚焦位置的X射线管和成像系统

    公开(公告)号:US20080080664A1

    公开(公告)日:2008-04-03

    申请号:US11863518

    申请日:2007-09-28

    IPC分类号: H01J35/14 G21K1/08

    摘要: In order to reduce the influence of magnetic interference fields on the position of an x-ray focus of an x-ray tube, the deviation of a current focus position from a target focus position or of a measurement value proportional to the deviation is determined, the focus position by reducing the deviation of the current focus position from the target focus position, or the measurement value proportional to the deviation, on the basis of the determined deviation or the determined measurement value proportional to the deviation. The deviation of the current focus position from the target focus position or the measurement value proportional to the deviation is regulated to a value of essentially zero via repeated determination and correction.

    摘要翻译: 为了减小磁干扰场对X射线管的X射线焦点的位置的影响,确定当前聚焦位置与目标对焦位置的偏差或与偏差成比例的测量值, 基于所确定的偏差或与偏差成比例的确定的测量值,减小当前焦点位置与目标对焦位置的偏差或与偏差成比例的测量值的聚焦位置。 通过重复确定和校正,将当前焦点位置与目标对焦位置或与偏差成比例的测量值的偏差调节为基本为零的值。

    Registration for Tracked Medical Tools and X-Ray Systems
    10.
    发明申请
    Registration for Tracked Medical Tools and X-Ray Systems 有权
    跟踪医疗工具和X射线系统的注册

    公开(公告)号:US20140228678A1

    公开(公告)日:2014-08-14

    申请号:US14181600

    申请日:2014-02-14

    摘要: In order to increase the accuracy of registration between a world coordinate system and an image coordinate system such that a tracked medical tool may be moved forward in the body of a patient without any additional or with limited live imaging, a method for registration of the tracked medical tool with an X-ray system is provided. The method includes receiving image data from the X-ray system at a plurality of time points, receiving tracking data from a tracking device of the tracked medical tool at the plurality of time points, and registering the world coordinate system and the image coordinate system based on the received image data and the received tracking data at the plurality of time points.

    摘要翻译: 为了增加世界坐标系和图像坐标系之间的配准精度,使得跟踪的医疗工具可以在患者体内向前移动而不需要任何额外的或有限的实况成像,一种用于登记被跟踪的医疗工具的方法 提供具有X射线系统的医疗工具。 该方法包括在多个时间点从X射线系统接收图像数据,在多个时间点从跟踪医疗工具的跟踪装置接收跟踪数据,并以世界坐标系和图像坐标系为基础 对所接收的图像数据和在多个时间点的接收到的跟踪数据。