Dynamic computed tomography imaging
    1.
    发明授权
    Dynamic computed tomography imaging 有权
    动态计算机断层扫描成像

    公开(公告)号:US08279997B2

    公开(公告)日:2012-10-02

    申请号:US12302108

    申请日:2007-05-09

    IPC分类号: A61B6/00 G06K9/00

    摘要: Projection data (302) acquired during a tomographic examination of a periodically moving object is used to reconstruct a plurality of image layers (308). The image layers (308) are combined to generate image data at a desired phase of motion. To generate a weighting function used to combine the image layers, a reference weighting function (512) is generated at the desired phase. The image layers (308) are weighted to approximate the first weighting function (312). The number of image layers and the size of a sub-region of interest are advantageously selected so that the various image layers can be stored in a relatively high speed memory portion of a computer.

    摘要翻译: 在周期性移动物体的断层摄影检查期间获取的投影数据(302)用于重构多个图像层(308)。 图像层(308)被组合以在期望的运动阶段产生图像数据。 为了产生用于组合图像层的加权函数,在期望的阶段产生参考加权函数(512)。 图像层(308)被加权以近似第一加权函数(312)。 有利地选择图像层的数量和感兴趣的子区域的大小,使得各种图像层可以存储在计算机的相对高速的存储器部分中。

    DYNAMIC COMPUTED TOMOGRAPHY IMAGING
    2.
    发明申请
    DYNAMIC COMPUTED TOMOGRAPHY IMAGING 有权
    动态计算机图像成像

    公开(公告)号:US20090290774A1

    公开(公告)日:2009-11-26

    申请号:US12302108

    申请日:2007-05-09

    IPC分类号: G06K9/00

    摘要: Projection data (302) acquired during a tomographic examination of a periodically moving object is used to reconstruct a plurality of image layers (308). The image layers (308) are combined to generate image data at a desired phase of motion. To generate a weighting function used to combine the image layers, a reference weighting function (512) is generated at the desired phase. The image layers (308) are weighted to approximate the first weighting function (312). The number of image layers and the size of a sub-region of interest are advantageously selected so that the various image layers can be stored in a relatively high speed memory portion of a computer.

    摘要翻译: 在周期性移动物体的断层摄影检查期间获取的投影数据(302)用于重构多个图像层(308)。 图像层(308)被组合以在期望的运动阶段产生图像数据。 为了产生用于组合图像层的加权函数,在期望的阶段产生参考加权函数(512)。 图像层(308)被加权以近似第一加权函数(312)。 有利地选择图像层的数量和感兴趣的子区域的大小,使得各种图像层可以存储在计算机的相对高速的存储器部分中。