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    Tomosynthesis imaging system and method
    21.
    发明授权
    Tomosynthesis imaging system and method 有权
    系统合成成像系统及方法

    公开(公告)号：US07356113B2

    公开(公告)日：2008-04-08

    申请号：US10776690

    申请日：2004-02-11

    申请人： Tao Wu ,  Alex Stewart ,  Martin Stanton ,  Walter Phillips ,  Daniel B. Kopans ,  Richard Moore

    发明人： Tao Wu ,  Alex Stewart ,  Martin Stanton ,  Walter Phillips ,  Daniel B. Kopans ,  Richard Moore

    IPC分类号： A61B6/02

    CPC分类号： G06T11/006 ,  A61B6/025 ,  A61B6/502 ,  A61B6/583 ,  G01N23/04 ,  G06T2211/424 ,  G06T2211/436

    摘要： A system for three-dimensional tomosynthesis imaging of a target element includes an image acquisition element and a processor. The image acquisition element obtains a plurality of images of the target element from a plurality of angles and includes a radiation source that is positionable at a plurality of angles with respect to the target element and a radiation detector. The radiation detector is positioned so as to detect radiation emitted by the radiation source passing through the target element and determine a plurality of attenuation values for radiation passing through the target element to establish a radiation absorbance projection image of the target element for a particular radiation source angle. The processor is configured to apply an iterative reconstruction algorithm to the radiation absorbance projection images of the target element obtained from a plurality of radiation source angles to generate a three-dimensional reconstruction of the target element.

    摘要翻译： 用于目标元件的三维断层合成成像的系统包括图像采集元件和处理器。 图像采集元件从多个角度获得目标元件的多个图像，并且包括可相对于目标元件以多个角度定位的辐射源和放射线检测器。 放射线检测器被定位成检测通过目标元件的辐射源发射的辐射，并确定用于通过目标元件的辐射的多个衰减值，以建立用于特定辐射源的目标元件的辐射吸收投影图像 角度。 处理器被配置为对从多个辐射源角度获得的目标元件的辐射吸收投影图像应用迭代重建算法，以产生目标元素的三维重建。

    TOMOSYNTHESIS IMAGING SYSTEM AND METHOD
    22.
    发明申请
    TOMOSYNTHESIS IMAGING SYSTEM AND METHOD 审中-公开
    TOMOSYNTHESIS成像系统和方法

    公开(公告)号：US20080232545A1

    公开(公告)日：2008-09-25

    申请号：US12099416

    申请日：2008-04-08

    申请人： Tao Wu ,  Alex Stewart ,  Martin Stanton ,  Walter Phillips ,  Daniel B. Kopans ,  Richard Moore

    发明人： Tao Wu ,  Alex Stewart ,  Martin Stanton ,  Walter Phillips ,  Daniel B. Kopans ,  Richard Moore

    IPC分类号： A61B6/00

    CPC分类号： G06T11/006 ,  A61B6/025 ,  A61B6/502 ,  A61B6/583 ,  G01N23/04 ,  G06T2211/424 ,  G06T2211/436

    摘要： A system for three-dimensional tomosynthesis imaging of a target element is provided having an image acquisition element and a processor. The image acquisition element obtains a plurality of images of the target element from a plurality of angles and includes a radiation source that is positionable at a plurality of angles with respect to the target element and a radiation detector. The radiation detector is positioned so as to detect radiation emitted by the radiation source passing through the target element and determine a plurality of attenuation values for radiation passing through the target element to establish a radiation absorbance projection image of the target element for a particular radiation source angle. The processor is configured to apply an iterative reconstruction algorithm to the radiation absorbance projection images of the target element obtained from a plurality of radiation source angles to generate a three-dimensional reconstruction of the target element. The system can gain further accuracy where the iterative reconstruction algorithm is applied using cone-beam forward projection and back projection.

    摘要翻译： 提供了具有图像采集元件和处理器的目标元件的三维断层合成成像系统。 图像采集元件从多个角度获得目标元件的多个图像，并且包括可相对于目标元件以多个角度定位的辐射源和放射线检测器。 放射线检测器被定位成检测通过目标元件的辐射源发射的辐射，并确定通过目标元件的辐射的多个衰减值，以建立用于特定辐射源的目标元件的辐射吸收投影图像 角度。 处理器被配置为对从多个辐射源角度获得的目标元件的辐射吸收投影图像应用迭代重建算法，以产生目标元素的三维重建。 在使用锥束前向投影和反投影应用迭代重建算法的情况下，系统可以获得进一步的准确性。