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公开(公告)号：US08126240B2
公开(公告)日：2012-02-28
申请号：US11884166
申请日：2006-02-16
IPC分类号： A61B19/00
CPC分类号： G06T7/0012 , A61B6/505 , G06T2207/30008
摘要： A method of deriving an estimate of the extent of fracture in a vertebra shown in an image of part of A spine is provided. The images of at least two vertebrae are segmented to obtain data representative of the shape and size of each of the vertebrae. An approximation of the shape of a first of the vertebrae is reconstructed by comparing the data obtained for a second of the two vertebrae with a mathematical model of at least the same two vertebrae of an unfractured spine. The unfractured shape of the first vertebra is predicted to enable a comparison of the shape and size of the first vertebra as imaged with the predicted unfractured shape and size. The difference between the respective images is subsequently computed to obtain a result representative of the extent of fracture in the first vertebra.
摘要翻译： 提供了一种导出A脊部的图像中所示的椎骨断裂程度的估计的方法。 将至少两个椎骨的图像分割以获得表示每个椎骨的形状和尺寸的数据。 通过将获得的两个椎骨中的第二个椎骨的数据与未经断裂的脊柱的至少相同的两个椎骨的数学模型进行比较，来重建第一椎骨的形状的近似。 第一椎骨的未破裂形状被预测为能够将第一椎骨的形状和尺寸与所预测的未破裂形状和尺寸成像进行比较。 随后计算各个图像之间的差异以获得代表第一椎骨的骨折程度的结果。
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12.发明申请公开(公告)号：US20080025466A1
公开(公告)日：2008-01-31
申请号：US11492437
申请日：2006-07-25
申请人： Charles G. Peterfy , David L. White , Manish Kothari , Gabriele von Ingersleben , Martine M. Sieffert , Julie Camille DiCarlo
发明人： Charles G. Peterfy , David L. White , Manish Kothari , Gabriele von Ingersleben , Martine M. Sieffert , Julie Camille DiCarlo
IPC分类号： H05G1/28
摘要： A frame for determining the position and orientation of an x-ray source relative to an x-ray cassette during x-radiography. In one embodiment the frame includes an x-ray transparent or translucent plate having a first surface and a second surface; and a partially radio-opaque protrusion positioned on the first surface of the plate. In another embodiment, a method for determining the position and orientation of an x-ray source relative to an x-ray cassette is disclosed. The method includes the steps of providing a frame, including an x-ray transparent plate having a first surface and a second surface; and a protrusion having a radio-opaque portion positioned on the first surface of the plate, and placing the plate on the x-ray cassette such that the second surface is in contact with the x-ray cassette. The method further includes placing the appendage on the plate in close juxtaposition to the protrusion, exposing the appendage and plate to an x-ray beam, and examining the image formed.
摘要翻译： 用于在X射线照相术期间确定x射线源相对于x射线盒的位置和取向的框架。 在一个实施例中，框架包括具有第一表面和第二表面的x射线透明或半透明板; 以及位于所述板的第一表面上的部分不透射线的突起。 在另一个实施例中，公开了一种用于确定x射线源相对于x射线盒的位置和取向的方法。 该方法包括提供包括具有第一表面和第二表面的x射线透明板的框架的步骤; 以及具有位于所述板的第一表面上的不透射线部分的突起，并且将所述板放置在所述X射线盒上，使得所述第二表面与所述x射线盒接触。 该方法还包括将附件放置在板上，与突起并排放置，将附属物和板暴露于X射线束，并检查形成的图像。
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公开(公告)号：US20130204115A1
公开(公告)日：2013-08-08
申请号：US13701102
申请日：2011-05-25
申请人： Erik B. Dam , Rabia L. Granlund , Martin Lillholm
发明人： Erik B. Dam , Rabia L. Granlund , Martin Lillholm
CPC分类号： A61B5/4509 , A61B5/055 , A61B5/4514 , A61B5/4528 , A61B5/7225 , A61B5/7275 , A61B5/7282 , G06T7/0012 , G06T7/44 , G06T2207/10088 , G06T2207/20081 , G06T2207/20104 , G06T2207/30008
摘要： A method for computer based analysis of a low field MR image including a trabecular region of bone for extracting from said image diagnostic information by applying a trained statistical classifier which has been trained on similar labelled according to the severity of a trabecular bone altering disease suffered at the time or later. For each image in the training set a region of interest (ROI) is defined, textural information relating to the intensities of voxels within the ROI is obtained, and combinations of features of said textural information are found which suitably classify the images according to said labelling. An image under study is treated similarly and features of said textural information for the voxels within the ROI of the image are combined as learnt in the training of the classifier to estimate a level of said trabecular bone altering disease or propensity to develop said bone altering disease or a level thereof associated with said image.
摘要翻译： 一种用于基于计算机的分析包括骨小梁区域的低磁场MR图像的方法，用于通过应用训练有素的统计分类器从所述图像诊断信息提取，所述训练统计分类器已经根据所遭受的小梁骨变性疾病的严重性在类似的标记 时间或者以后。 对于训练集中的每个图像，定义感兴趣区域（ROI），获得与ROI内的体素的强度相关的纹理信息，并且找到所述纹理信息的特征的组合，其根据所述标签适当地分类图像 。 类似地对待研究的图像进行处理，并且在分类器的训练中学习的方式组合图像ROI内的体素的所述纹理信息的特征，以估计所述小梁骨改变疾病的水平或发展所述骨变性疾病的倾向 或其与所述图像相关联的级别。
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公开(公告)号：US20120249551A1
公开(公告)日：2012-10-04
申请号：US13377313
申请日：2010-06-03
IPC分类号： G06T17/00
CPC分类号： G06T7/35
摘要： A method of manipulation of a representation of a 2-D shape for improving a General Procrustes Alignment process, comprising taking a starting 2-D shape defined by a set of landmarks derived from data representing a 2-D projection image of a body part such as a vertebra, in a suitably programmed computing device deriving for each landmark of the 2-D shape a probable relative depth by the application thereto of a statistical model based on a multiplicity of 3-D shapes defined by landmarks derived from 3-D images of similar said body parts, said landmarks having one depth and two spatial coordinates, said model relating the probable relative depth of each landmark in a 3-D-shape of a said body part to the spatial coordinates of the set of landmarks constituting a said shape, and based on the inferred relative depth of the landmarks of the starting 2-D shape deforming the starting 2-D shape to correct for apparent distortion caused by rotation about an axis parallel to the projection plane of the imaged body part, so producing a corrected 2-D shape.
摘要翻译： 一种操纵二维形状表示的方法，用于改进一般概括对准过程，包括从由表示身体部位的二维投影图像的数据导出的一组地标定义的起始2-D形状，例如 作为椎骨，在适当编程的计算设备中，基于由3D图像导出的地标定义的多个3-D形状，通过应用于其中的2D形状的每个地标获得可能的相对深度 所述地标具有一个深度和两个空间坐标，所述模型将所述身体部位的3-D形状中的每个标记的可能相对深度与构成所述身体部分的一组地标的空间坐标相关联 形状，并且基于起始2-D形状的地标的推定的相对深度使起始2D形状变形，以校正由平行于投影计划的轴线旋转引起的明显变形 e，从而产生校正的2-D形状。
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公开(公告)号：US08218850B2
公开(公告)日：2012-07-10
申请号：US12317530
申请日：2008-12-23
申请人： Jakob Raundahl , Marco Loog , Mads Nielsen
发明人： Jakob Raundahl , Marco Loog , Mads Nielsen
IPC分类号： G06T7/00
CPC分类号： G06K9/527 , G06K9/6223
摘要： A method of processing a mammogram image to derive a value for a parameter useful in detecting differences in breast tissue in subsequent images of the same breast or relative to a control group of such images, said derived parameter being an aggregate probability score reflecting the probability of the image being a member of a predefined class of mammogram images, comprises computing for each of a multitude of pixels within a large region of interest within the image a pixel probability score assigned by a trained statistical classifier according to the probability of said pixel belonging to an image belonging to said class, said pixel probability being calculated on the basis of a selected plurality of features of said pixels, and computing said parameter by aggregating the pixel probability scores over said region of interest. Said features may include the 3-jet of said pixels.
摘要翻译： 一种处理乳房X线照片图像以导出用于检测同一乳房的后续图像或相对于这样的图像的对照组的乳房组织中的差异的参数的值的方法，所述导出参数是反映概率的概率 所述图像是预定类别的乳房X线照片图像的成员，包括根据所述像素的概率属于所述图像的概率来计算针对所述图像内的感兴趣的大区域内的多个像素中的每个像素，所述像素由训练的统计分类器分配的像素概率得分 属于所述类的图像，所述像素概率是基于所选像素的所选择的多个特征被计算的，并且通过聚集所述感兴趣区域上的像素概率分数来计算所述参数。 所述特征可以包括所述像素的3射流。
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16.发明申请公开(公告)号：US20080037711A1
公开(公告)日：2008-02-14
申请号：US11492627
申请日：2006-07-25
申请人： Charles G. Peterfy , David L. White , Manish Kothari , Gabriele von Ingersleben , Martine M. Sieffert , Julie Camille DiCarlo
发明人： Charles G. Peterfy , David L. White , Manish Kothari , Gabriele von Ingersleben , Martine M. Sieffert , Julie Camille DiCarlo
CPC分类号： A61B6/04 , A61B6/0492
摘要： A frame for positioning and labeling an appendage relative to an x-ray cassette during x-radiography. In one embodiment, the frame includes an x-ray transparent plate having a first surface and a second surface; and a protrusion positioned on the first surface. The protrusion aids in the positioning of the appendage and preventing the first surface of the plate from being in contact with the x-ray cassette. In still yet another embodiment, the plate includes indicia for positioning the appendage. Another aspect of the invention is a method for positioning an appendage on x-ray cassette including the steps of: providing a frame having an x-ray transparent plate having a first surface and a second surface; and a protrusion positioned on the first surface; placing the plate on the x-ray cassette such that the second surface is in contact with the x-ray cassette; and placing the appendage on the plate.
摘要翻译： 用于在x射线照相下定位和标记相对于X射线盒的附件的框架。 在一个实施例中，框架包括具有第一表面和第二表面的x射线透明板; 以及位于所述第一表面上的突起。 突出部有助于附属物的定位并防止板的第一表面与X射线盒接触。 在又一个实施例中，板包括用于定位附件的标记。 本发明的另一方面是一种用于将附属物定位在X射线盒上的方法，包括以下步骤：提供具有X射线透明板的框架，该X射线透明板具有第一表面和第二表面; 和位于所述第一表面上的突起; 将所述板放置在所述x射线盒上，使得所述第二表面与所述x射线盒接触; 并将附件放在盘子上。
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17.发明授权Test object for calibration of imaging measurements of mammalian skeletal joints 失效用于校准哺乳动物骨骼关节成像测量的测试对象公开(公告)号：US07157696B2
公开(公告)日：2007-01-02
申请号：US10870686
申请日：2004-06-17
IPC分类号： G01D18/00
CPC分类号： A61B6/583 , A61B5/055 , A61B5/4514 , A61B5/4528 , A61B6/037 , A61B6/4258 , A61B8/587
摘要： The invention provides a test device or “phantom” for use in conjunction with medical imaging modalities. In one embodiment, the phantom replicates the attenuation and absorption properties of joint articular cartilage. The phantom is useful for quality assurance of images of joints obtained using an array of medical imaging modalities.
摘要翻译： 本发明提供了与医学成像模式结合使用的测试装置或“幻影”。 在一个实施例中，幻影复制关节关节软骨的衰减和吸收性质。 幻影可用于使用一系列医学成像模式获得的关节的图像的质量保证。
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18.发明申请Test object for calibration of imaging measurements of mammalian skeletal joints 失效用于校准哺乳动物骨骼关节成像测量的测试对象公开(公告)号：US20050139758A1
公开(公告)日：2005-06-30
申请号：US10870686
申请日：2004-06-17
申请人： David White , Manish Kothari , Richard Carano
发明人： David White , Manish Kothari , Richard Carano
CPC分类号： A61B6/583 , A61B5/055 , A61B5/4514 , A61B5/4528 , A61B6/037 , A61B6/4258 , A61B8/587
摘要： The invention provides a test device or “phantom” for use in conjunction with medical imaging modalities. In one embodiment, the phantom replicates the attenuation and absorption properties of joint articular cartilage. The phantom is useful for quality assurance of images of joints obtained using an array of medical imaging modalities.
摘要翻译： 本发明提供了与医学成像模式结合使用的测试装置或“幻影”。 在一个实施例中，幻影复制关节关节软骨的衰减和吸收性质。 幻影可用于使用一系列医学成像模式获得的关节的图像的质量保证。
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