Enhanced X-ray imaging system and method
    1.
    发明申请
    Enhanced X-ray imaging system and method 有权
    增强X射线成像系统及方法

    公开(公告)号:US20050226375A1

    公开(公告)日:2005-10-13

    申请号:US10813759

    申请日:2004-03-31

    IPC分类号: A61B5/05 A61B6/00 G01N23/04

    摘要: Techniques are provided for generating three-dimensional images, such as may be used in mammography. In accordance with these techniques, projection images of an object of interest are acquired from different locations, such as by moving an X-ray source along an arbitrary imaging trajectory between emissions or by individually activating different X-ray sources located at different locations relative to the object of interest. The projection images may be reconstructed to generate a three-dimensional dataset representative of the object from which one or more volumes may be selected for visualization and display. Additional processing steps may occur throughout the image chain, such as for pre-processing the projection images or post-processing the three-dimensional dataset.

    摘要翻译: 提供了用于产生三维图像的技术,例如可用于乳房X线照相术。 根据这些技术,例如通过沿着发射之间的任意成像轨迹移动X射线源或通过单独激活位于相对于不同位置的不同位置处的不同X射线源,从不同位置获取感兴趣对象的投影图像 感兴趣的对象。 可以重建投影图像以生成代表对象的三维数据集,从该对象可以选择一个或多个卷来进行可视化和显示。 在整个图像链中可能发生附加处理步骤,例如用于预处理投影图像或对3D维数据集进行后处理。

    Method and system for viewing a rendered volume
    2.
    发明申请
    Method and system for viewing a rendered volume 有权
    查看渲染卷的方法和系统

    公开(公告)号:US20050135557A1

    公开(公告)日:2005-06-23

    申请号:US10744030

    申请日:2003-12-23

    摘要: A technique is provided for viewing a series of volumes that may be rendered using visualization techniques incorporating one or more weighting functions, such as depth-dependent weighting functions. In one aspect, the viewing technique may utilize such weighting functions to vary the volume of interest in a series of volume renderings. In addition, the viewing technique may provide for varying the viewing angle to minimize the effect of orientation specific artifacts in the displayed images.

    摘要翻译: 提供了一种用于观看可以使用结合一个或多个加权函数(例如深度相关加权函数)的可视化技术呈现的一系列体积的技术。 在一个方面,观看技术可以利用这样的加权函数来改变一系列体积渲染中的感兴趣体积。 此外,观看技术可以提供改变视角以最小化所显示的图像中的取向特定伪像的影响。

    System and method for scanning an object in tomosynthesis applications
    3.
    发明授权
    System and method for scanning an object in tomosynthesis applications 有权
    用于在层析合成应用程序中扫描对象的系统和方法

    公开(公告)号:US06901132B2

    公开(公告)日:2005-05-31

    申请号:US10607317

    申请日:2003-06-26

    摘要: A tomosynthesis system for scanning a region in an object comprises a radiation source configured to traverse in a plurality of positions yielding a plurality of scanning directions. Each of the plurality of positions corresponds to a respective scanning direction. Further, the plurality of scanning directions comprise at least a scanning direction along a first axis and a direction along a second axis, the second axis being transverse to the first axis.

    摘要翻译: 用于扫描物体中的区域的断层合成系统包括被配置为在产生多个扫描方向的多个位置中横越的辐射源。 多个位置中的每一个对应于相应的扫描方向。 此外,多个扫描方向至少包括沿着第一轴线的扫描方向和沿第二轴线的方向,第二轴线横向于第一轴线。

    Imaging chain for digital tomosynthesis on a flat panel detector
    6.
    发明申请
    Imaging chain for digital tomosynthesis on a flat panel detector 有权
    用于平板检测器上数字断层合成的成像链

    公开(公告)号:US20050002550A1

    公开(公告)日:2005-01-06

    申请号:US10613591

    申请日:2003-07-03

    IPC分类号: G06K9/00 G06T5/00 G06T11/00

    摘要: A method of creating and displaying images resulting from digital tomosynthesis performed on a subject using a flat panel detector is disclosed. The method includes the step of acquiring a series of x-ray images of the subject, where each x-ray image is acquired at different angles relative to the subject. The method also includes the steps of applying a first set of corrective measures to the series of images, reconstructing the series of images into a series of slices through the subject, and applying a second set of corrective measures to the slices. The method further includes the step of displaying the images or slices according to at least one of a plurality of display options.

    摘要翻译: 公开了一种创建和显示使用平板检测器对受试者进行数字断层合成所产生和显示的图像的方法。 该方法包括获取被摄物体的一系列X射线图像的步骤,其中以相对于被摄体的不同角度获取每个X射线图像。 该方法还包括以下步骤:将第一组校正措施应用于一系列图像,将该系列图像重建成通过对象的一系列切片,以及将第二组校正措施应用于切片。 该方法还包括根据多个显示选项中的至少一个显示图像或切片的步骤。

    Method and system for multi-energy tomosynthesis
    7.
    发明申请
    Method and system for multi-energy tomosynthesis 有权
    多能断层合成的方法与系统

    公开(公告)号:US20060067473A1

    公开(公告)日:2006-03-30

    申请号:US10955269

    申请日:2004-09-30

    IPC分类号: H05G1/64

    摘要: Briefly in accordance with one embodiment, the present technique provides a multi-energy tomosynthesis imaging system. The system includes an X-ray source configured to emit X-rays from multiple locations within a limited angular range relative to an imaging volume. The imaging system also includes a digital detector with an array of detector elements to generate images in response to the emitted X-rays. The imaging system further includes a detector acquisition circuitry to acquire the images from the digital detector. The imaging system may also include a processing circuitry configured to decompose plurality of images based on energy characteristics and to reconstruct the plurality of images to generate a three-dimensional multi-energy tomosynthesis image.

    摘要翻译: 简而言之,根据一个实施例,本技术提供了一种多能量断层合成成像系统。 该系统包括被配置为相对于成像体积在有限的角度范围内从多个位置发射X射线的X射线源。 成像系统还包括具有检测器元件阵列的数字检测器,以响应于发射的X射线产生图像。 成像系统还包括用于从数字检测器获取图像的检测器采集电路。 成像系统还可以包括处理电路,其被配置为基于能量特性分解多个图像,并且重建多个图像以生成三维多能量断层合成图像。

    Method and apparatus for direct reconstuction in tomosynthesis imaging
    8.
    发明申请
    Method and apparatus for direct reconstuction in tomosynthesis imaging 有权
    断层成像成像直接重建的方法和装置

    公开(公告)号:US20060002509A1

    公开(公告)日:2006-01-05

    申请号:US10881649

    申请日:2004-06-30

    IPC分类号: A61B6/00

    摘要: A technique for directly reconstructing three-dimensional images acquired in tomosynthesis imaging is provided. The method allows for pre-processing a set of projection images based upon the acquisition geometry prior to direct reconstruction of the projection images. Furthermore, the technique allows for post-processing the reconstructed image data as desired to improve image quality. If desired the direct reconstruction process may be iterated a set number of times or until a desired threshold criteria is met, such as regarding image quality.

    摘要翻译: 提供了一种用于直接重建在层析合成成像中获取的三维图像的技术。 该方法允许在直接重建投影图像之前基于采集几何来预处理一组投影图像。 此外,该技术允许根据需要对重建的图像数据进行后处理以提高图像质量。 如果需要,直接重建过程可以迭代一定次数,或者直到满足期望的阈值标准,例如关于图像质量。