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    • 4. 发明授权
    • X-ray CT apparatus
    • X射线CT装置
    • US07113569B2
    • 2006-09-26
    • US10724074
    • 2003-12-01
    • Miwa OkumuraYuusuke TokiTakamasa Ota
    • Miwa OkumuraYuusuke TokiTakamasa Ota
    • G21K1/04
    • A61B6/032A61B6/027A61B6/06A61B6/4085A61B6/466A61B6/488A61B6/503
    • An X-ray CT apparatus, as one example, includes at least one X-ray irradiation source configured to irradiate an X-ray to a volume of interest, at least one X-ray detector including a plurality of detection element segments configured to detect the X-ray penetrated through the volume of interest, at least one collimator configured to create an opening that is movable in at least one of a slice direction and a channel direction, at least one image processing part configured to extract a portion of the volume data, a controller configured to set the opening of the at least one collimator to a second opening size according to a cylinder-like second scanning range that is set to limit the volume of interest and configured to perform a second scan, and at least one reconstruction part configured to reconstruct image data based on data collected by the second scan.
    • 作为一个示例的X射线CT装置包括至少一个被配置为将X射线照射到感兴趣体积的X射线照射源,至少一个X射线检测器,其包括被配置为检测的多个检测元件段 所述X射线穿过所述感兴趣的体积,至少一个准直器被配置为产生可在切片方向和通道方向中的至少一个中移动的开口;至少一个图像处理部件,被配置为提取所述体积的一部分 数据,被配置为根据被设置为限制感兴趣的体积并被配置为执行第二次扫描的圆柱状的第二扫描范围将所述至少一个准直仪的打开度设定为第二开口尺寸的控制器,以及至少一个 重建部件,被配置为基于由第二扫描收集的数据来重建图像数据。