GAMMA CAMERA, SPECT DEVICE, PET DEVICE, AND METHOD FOR GENERATING MEASURED GAMMA-RAY IMAGES
    2.
    发明申请
    GAMMA CAMERA, SPECT DEVICE, PET DEVICE, AND METHOD FOR GENERATING MEASURED GAMMA-RAY IMAGES 有权
    伽马相机,SPECT装置,PET装置和用于产生测量的伽玛射线图像的方法

    公开(公告)号:US20150379699A1

    公开(公告)日:2015-12-31

    申请号:US14767037

    申请日:2014-02-13

    Applicant: HITACHI, LTD.

    Abstract: A unit (33) for generating count images for separate energy windows generates main measured count images and auxiliary measured count images on the basis of gamma ray (6) count information measured by a detector head (10). A main measurement window direct ray count rate estimation unit (42) estimates a count rate for direct gamma rays in a main measurement energy window, doing so by subtracting a scattered gamma ray count rate for an auxiliary measurement energy window, which has been estimated from an auxiliary measured count image and detector response data by an auxiliary measurement window scattered ray count rate estimation unit (41), from the main measured count image.

    Abstract translation: 用于生成用于分开的能量窗口的计数图像的单元(33)基于由检测器头(10)测量的伽马射线(6)计数信息产生主测量计数图像和辅助测量计数图像。 主测量窗口直接光线计数率估计单元(42)估计主测量能量窗口中的直接伽马射线的计数率,通过从辅助测量能量窗口中减去散射的伽马射线计数率,从而 辅助测量计数图像和检测器响应数据由辅助测量窗口散射光线计数率估计单元(41),从主测量计数图像。

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