Methods and apparatus for adjusting emission imaging system detector
attitude
    9.
    发明授权
    Methods and apparatus for adjusting emission imaging system detector attitude 失效
    用于调整发射成像系统检测器姿态的方法和装置

    公开(公告)号:US6097030A

    公开(公告)日:2000-08-01

    申请号:US937391

    申请日:1997-09-25

    IPC分类号: G01T1/166

    摘要: An emission tomographic system which includes a gantry and a detector is described. The system automatically adjusts the detector attitude to maintain the detector at a desired orientation with respect to a patient during a scan. The system includes a tilt drive and processor coupled to the gantry and the detector. The processor receives signals indicative of changes in the gantry pitch angle, and uses such signals to determine appropriate changes in detector tilt. For each change in gantry pitch angle, the processor executes an algorithm relating gantry pitch angle to detector tilt angle, and determines an appropriate responsive change in detector tilt angle. The tilt drive then tilts the detector in accordance with the appropriate responsive change.

    摘要翻译: 描述了包括台架和检测器的发射断层摄影系统。 系统自动调整检测器的姿态,以便在扫描期间将检测器保持在相对于患者的期望取向。 该系统包括与台架和检测器相连的倾斜驱动器和处理器。 处理器接收指示龙门俯仰角变化的信号,并使用这些信号来确定检测器倾斜的适当变化。 对于龙门架俯仰角的每个变化,处理器执行与门架俯仰角相关的探测器倾斜角度的算法,并确定检测器倾斜角度的适当响应变化。 然后倾斜驱动器根据适当的响应变化使检测器倾斜。