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公开(公告)号：US20050135557A1
公开(公告)日：2005-06-23
申请号：US10744030
申请日：2003-12-23
CPC分类号： A61B6/00 , G01N23/04 , Y10S378/901
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。
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公开(公告)号：US20060067473A1
公开(公告)日：2006-03-30
申请号：US10955269
申请日：2004-09-30
申请人： Jeffrey Eberhard , John Kaufhold , Bernhard Hermann Claus , Kadri Jabri , Gopal Avinash , John Sabol
发明人： Jeffrey Eberhard , John Kaufhold , Bernhard Hermann Claus , Kadri Jabri , Gopal Avinash , John Sabol
IPC分类号： H05G1/64
CPC分类号： A61B6/025 , A61B6/4035 , A61B6/4241 , A61B6/4291 , A61B6/482 , A61B6/5288 , A61B6/541
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。
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公开(公告)号：US20050226375A1
公开(公告)日：2005-10-13
申请号：US10813759
申请日：2004-03-31
CPC分类号： A61B6/502 , A61B6/027 , A61B6/4007 , A61B6/4035 , A61B6/482 , A61B6/584 , G06F19/00 , Y10S378/901
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。
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4.发明授权公开(公告)号：US06901132B2
公开(公告)日：2005-05-31
申请号：US10607317
申请日：2003-06-26
CPC分类号： A61B6/025 , A61B6/027 , G01N23/044 , G01N2223/419 , G01N2223/612
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。
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5.发明申请公开(公告)号：US20070003117A1
公开(公告)日：2007-01-04
申请号：US11172655
申请日：2005-06-30
申请人： Frederick Wheeler , Bernhard Herman Claus , John Kaufhold , Jeffrey Eberhard , Mark Grabb , Cynthia Landberg
发明人： Frederick Wheeler , Bernhard Herman Claus , John Kaufhold , Jeffrey Eberhard , Mark Grabb , Cynthia Landberg
CPC分类号： G06T7/0012 , G06T7/001 , G06T7/38 , G06T2207/30004
摘要： A technique is provided for comparative image analysis and/or change detection using computer assisted detection and/or diagnosis (CAD) algorithms. The technique includes registering two or more images, comparing the images with one another to generate a change map, and detecting anomalies in the images based on the change map.
摘要翻译： 提供了一种用于使用计算机辅助检测和/或诊断（CAD）算法的比较图像分析和/或变化检测的技术。 该技术包括登记两个或多个图像，将图像彼此进行比较以生成改变图，并且基于变化图检测图像中的异常。
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6.发明申请Method and system for imaging a volume using a three-dimensional spiral scan trajectory 有权使用三维螺旋扫描轨迹对体积成像的方法和系统公开(公告)号：US20050226370A1
公开(公告)日：2005-10-13
申请号：US10813100
申请日：2004-03-30
CPC分类号： A61B6/4429 , A61B6/025 , A61B6/027 , A61B6/4021 , A61B6/4233 , A61B6/466 , Y10S378/901
摘要： A technique is provided for improving the depth resolution of tomosynthesis images. The technique provides for the use of spiral scan trajectories. The X-ray source may moved along the spiral scan trajectory, acquiring projection data at various locations on the trajectory which are offset in the z-direction, i.e., in a direction perpendicular to the detector. Projection data acquired at different positions in the z-direction may be used to generate three-dimensional, tomosynthesis images having improved depth resolution.
摘要翻译： 提供了一种提高断层图像深度分辨率的技术。 该技术提供了螺旋扫描轨迹的使用。 X射线源可以沿着螺旋扫描轨迹移动，在轨迹上的各个位置获取在z方向偏移的方向即垂直于检测器的方向上的投影数据。 在z方向的不同位置处获取的投影数据可用于产生具有改善的深度分辨率的三维，断层合成图像。
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公开(公告)号：US20050002550A1
公开(公告)日：2005-01-06
申请号：US10613591
申请日：2003-07-03
申请人： Kadri Jabri , Gopal Avinash , Stephen Metz , John Sabol , Jeffrey Eberhard , Bernard Claus , John Kaufhold
发明人： Kadri Jabri , Gopal Avinash , Stephen Metz , John Sabol , Jeffrey Eberhard , Bernard Claus , John Kaufhold
CPC分类号： G06T11/008 , G06T5/00 , G06T11/005 , G06T2207/10112 , G06T2207/30004 , G06T2211/436
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。
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公开(公告)号：US20060002509A1
公开(公告)日：2006-01-05
申请号：US10881649
申请日：2004-06-30
申请人： Bernhard Claus , Jeffrey Eberhard
发明人： Bernhard Claus , Jeffrey Eberhard
IPC分类号： A61B6/00
CPC分类号： G06T11/008 , G06T11/005 , G06T2211/424 , G06T2211/436
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。
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公开(公告)号：US20050133706A1
公开(公告)日：2005-06-23
申请号：US10739541
申请日：2003-12-18
申请人： Jeffrey Eberhard , Bernhard Claus , Abdulrahman Al-Khalidy , Abdalmajeid Alyassin , John Kaufhold , Gulnar Siddiqi
发明人： Jeffrey Eberhard , Bernhard Claus , Abdulrahman Al-Khalidy , Abdalmajeid Alyassin , John Kaufhold , Gulnar Siddiqi
CPC分类号： A61B6/4441 , A61B6/025 , A61B6/027
摘要： An imaging system for scanning a volume of interest in an object, the system includes a radiation source configured to traverse in a plurality of focal spot positions yielding a plurality of focal spot trajectories. Each focal spot trajectory defines a two dimensional focal spot projection in an image acquisition plane. Each of the focal spot positions comprise at least two positions at unequal distances from the image acquisition plane.
摘要翻译： 一种用于扫描物体中的感兴趣体积的成像系统，所述系统包括被配置为在产生多个焦点轨迹的多个焦斑位置中移动的辐射源。 每个焦点轨迹在图像采集平面中定义二维焦点投影。 每个焦点位置包括与图像采集平面不等距离的至少两个位置。
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公开(公告)号：US20060291711A1
公开(公告)日：2006-12-28
申请号：US11511656
申请日：2006-08-29
申请人： Kadri Jabri , Gopal Avinash , Stephen Metz , John Sabol , Jeffrey Eberhard , Bernhard Claus , John Kaufhold
发明人： Kadri Jabri , Gopal Avinash , Stephen Metz , John Sabol , Jeffrey Eberhard , Bernhard Claus , John Kaufhold
IPC分类号： G06K9/00
CPC分类号： G06T11/008 , G06T5/00 , G06T11/005 , G06T2207/10112 , G06T2207/30004 , G06T2211/436
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。
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