PROMPT GAMMA CORRECTION FOR NON-STANDARD ISOTOPES IN A PET SCANNER
    1.
    发明申请
    PROMPT GAMMA CORRECTION FOR NON-STANDARD ISOTOPES IN A PET SCANNER 有权
    PET扫描仪中非标准同位素的准确伽马校正

    公开(公告)号:US20080283758A1

    公开(公告)日:2008-11-20

    申请号:US12110474

    申请日:2008-04-28

    IPC分类号: G01T1/15

    CPC分类号: G01T1/2985 A61B6/037

    摘要: A method for correcting PET emission data for prompt gamma emission background components present in non-pure positron-emitting isotopes uses a two component fit of modeled scatter and modeled prompt gamma emission in the area of scatter tails in a normalized emission sinogram. The method allows a PET scan using non-standard PET isotopes to be quantitative and thus more clinically useful.

    摘要翻译: 用于校正存在于非纯正电子发射同位素中的迅速γ发射背景分量的PET发射数据的方法使用归一化发射正弦图中散射尾部区域中的建模散射和建模的提示γ发射的双分量拟合。 该方法允许使用非标准PET同位素的PET扫描是定量的,因此在临床上更有用。

    Systems and Methods for Calibrating Time Alignment For A Positron Emission Tomography (PET) System
    2.
    发明申请
    Systems and Methods for Calibrating Time Alignment For A Positron Emission Tomography (PET) System 有权
    用于校正正电子发射断层扫描(PET)系统的时间对准的系统和方法

    公开(公告)号:US20110127413A1

    公开(公告)日:2011-06-02

    申请号:US12628259

    申请日:2009-12-01

    IPC分类号: G12B13/00

    CPC分类号: G12B13/00 G01T1/2985

    摘要: A representative positron emission tomography (PET) calibration system includes a PET scanner having a ring detector, a phantom that is placed at approximately the center of the ring detector, and a time alignment calibration manager that is coupled to the PET scanner. The time alignment calibration manager detects coincidence events from the phantom, calculates position of time of flight events from the ring detector based on the detected coincidence events, and calculates time offsets for the ring detector using a mean value calculation based on the calculated position of the time of flight events.

    摘要翻译: 代表性的正电子发射断层摄影(PET)校准系统包括具有环检测器的PET扫描器,放置在环检测器的大约中心处的体模,以及耦合到PET扫描器的时间对准校准管理器。 时间校准管理器检测来自幻影的重合事件,基于检测到的重合事件来计算来自环形探测器的飞行时间的位置,并使用基于计算出的位置的计算的平均值计算环形探测器的时间偏移量 飞行时间事件