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    POINT SUBSELECTION FOR FAST DEFORMABLE POINT-BASED IMAGING
    1.
    发明申请
    POINT SUBSELECTION FOR FAST DEFORMABLE POINT-BASED IMAGING 有权
    基于快速基于点的成像的点选择

    公开(公告)号：US20090279739A1

    公开(公告)日：2009-11-12

    申请号：US11915752

    申请日：2006-05-31

    申请人： Michael Kaus ,  Todd McNutt ,  Vladimir Pekar

    发明人： Michael Kaus ,  Todd McNutt ,  Vladimir Pekar

    IPC分类号： G06T7/60

    CPC分类号： G06T7/30

    摘要： A method for selecting vertices for performing deformable registration of imaged objects is provided. The selected vertices form corresponding pairs, each pair including a vertex from a first imaged object and a vertex from a second imaged object. The corresponding vertex pairs are sorted in order of distance between the vertices making up the corresponding vertex pair. The corresponding vertex pair with the greatest distance is given top priority. Corresponding vertex pairs that lie within a selected distance from the selected corresponding vertex pair are discarded. In this manner, the number of vertex pairs used for deformable registration of the imaged objects is reduced and therefore allows for processing times that are clinically acceptable.

    摘要翻译： 提供了一种用于选择用于执行成像对象的变形登记的顶点的方法。 所选择的顶点形成对应的对，每对包括来自第一成像对象的顶点和来自第二成像对象的顶点。 对应的顶点对按照构成相应顶点对的顶点之间的距离的顺序进行排序。 具有最大距离的相应顶点对被赋予最高优先级。 位于距所选择的对应顶点对的选定距离内的相应顶点对被丢弃。 以这种方式，用于成像对象的可变形登记的顶点对的数量减少，因此允许临床可接受的处理时间。

    Manual tools for model based image segmentation
    3.
    发明申请
    Manual tools for model based image segmentation 有权
    用于基于模型的图像分割的手动工具

    公开(公告)号：US20070133848A1

    公开(公告)日：2007-06-14

    申请号：US10595357

    申请日：2004-10-06

    申请人： Todd McNutt ,  Michael Kaus ,  Vladimir Pekar

    发明人： Todd McNutt ,  Michael Kaus ,  Vladimir Pekar

    IPC分类号： G06K9/00

    CPC分类号： G06T19/00 ,  G06K9/209 ,  G06K9/34 ,  G06K2009/366 ,  G06K2209/05 ,  G06T7/11 ,  G06T7/12 ,  G06T7/149 ,  G06T2200/24 ,  G06T2207/10081 ,  G06T2207/30004 ,  G06T2219/2021

    摘要： A scanner (18) acquires images of a subject. A 3D model (52) of an organ is selected from an organ model database (50) and dropped over an image of an actual organ. A best fitting means (62) globally scales, translates and/or rotates the model (52) to best fit the actual organ represented by the image. A user uses a mouse (38) to use a set of manual tools (68) to segment and manipulate the model (52)1:o match the image data. The set of tools (68) includes: a Gaussian tool (72) for deforming a surface portion of the model along a Gaussian curve, a spherical push tool (80) for deforming the surface portion along a spherical surface segment, and a pencil tool (90) for manually drawing a line to which the surface portion is redefined.

    摘要翻译： 扫描器（18）获取被摄体的图像。 从器官模型数据库（50）中选择器官的3D模型（52）并且落在实际器官的图像上。 最佳拟合装置（62）在全局范围内缩放，平移和/或旋转模型（52）以最佳地适合由图像表示的实际器官。 用户使用鼠标（38）使用一组手动工具（68）来分割和操纵模型（52）1：o匹配图像数据。 所述工具集（68）包括：用于使模型的表面部分沿着高斯曲线变形的高斯工具（72），用于使表面部分沿着球形表面段变形的球形推动工具（80）和铅笔工具 （90），用于手动绘制重新定义表面部分的线。

    Object-specific segmentation
    4.
    发明申请
    Object-specific segmentation 审中-公开
    对象特定的分割

    公开(公告)号：US20060210158A1

    公开(公告)日：2006-09-21

    申请号：US10564657

    申请日：2004-07-13

    申请人： Vladimir Pekar ,  Michael Kaus ,  Todd McNutt

    发明人： Vladimir Pekar ,  Michael Kaus ,  Todd McNutt

    IPC分类号： G06K9/34 ,  G06K9/00

    CPC分类号： G06T7/0012 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/10072 ,  G06T2207/20104 ,  G06T2207/30004

    摘要： The invention relates to the field of efficient segmentation of collections of anatomical structures in medical imaging. For example, in radiotherapy planning, the segmentation of a collection of several anatomical structures, which represent the target volume in risk organs is required. When using model based segmentation, organ models represented by flexible surfaces are adapted to the boundaries of the object of interest. According to an aspect of the present invention, object-specific a priori information is incorporated in the segmentation process, which allows to provide for an improved segmentation. Furthermore, the segmentation process according to the present invention, may have an improved robustness, also the time required for the segmentation maybe reduced.

    摘要翻译： 本发明涉及医学成像中解剖结构集合的有效分割领域。 例如，在放射治疗计划中，需要分割几个解剖结构的集合，其代表风险器官中的目标体积。 当使用基于模型的分割时，由柔性表面表示的器官模型适应于感兴趣对象的边界。 根据本发明的一个方面，将特定于对象的先验信息并入分割过程中，这允许提供改进的分割。 此外，根据本发明的分割处理可以具有改进的鲁棒性，也可以减少分割所需的时间。

    Point subselection for fast deformable point-based imaging
    6.
    发明授权
    Point subselection for fast deformable point-based imaging 有权
    点选择快速可变形点基成像

    公开(公告)号：US08094895B2

    公开(公告)日：2012-01-10

    申请号：US11915752

    申请日：2006-05-31

    申请人： Michael Kaus ,  Todd McNutt ,  Vladimir Pekar

    发明人： Michael Kaus ,  Todd McNutt ,  Vladimir Pekar

    IPC分类号： G06K9/00 ,  G06K9/62 ,  G06K9/32

    CPC分类号： G06T7/30

    摘要： A method for selecting vertices for performing deformable registration of imaged objects is provided. The selected vertices form corresponding pairs, each pair including a vertex from a first imaged object and a vertex from a second imaged object. The corresponding vertex pairs are sorted in order of distance between the vertices making up the corresponding vertex pair. The corresponding vertex pair with the greatest distance is given top priority. Corresponding vertex pairs that lie within a selected distance from the selected corresponding vertex pair are discarded. In this manner, the number of vertex pairs used for deformable registration of the imaged objects is reduced and therefore allows for processing times that are clinically acceptable.

    摘要翻译： 提供了一种用于选择用于执行成像对象的变形登记的顶点的方法。 所选择的顶点形成对应的对，每对包括来自第一成像对象的顶点和来自第二成像对象的顶点。 对应的顶点对按照构成相应顶点对的顶点之间的距离的顺序进行排序。 具有最大距离的相应顶点对被赋予最高优先级。 位于距所选择的对应顶点对的选定距离内的相应顶点对被丢弃。 以这种方式，用于成像对象的可变形登记的顶点对的数量减少，因此允许临床可接受的处理时间。

    3D image segmentation
    8.
    发明授权
    3D image segmentation 失效
    3D图像分割

    公开(公告)号：US07536041B2

    公开(公告)日：2009-05-19

    申请号：US10560185

    申请日：2004-06-09

    申请人： Vladimir Pekar ,  Michael Reinhold Kaus ,  Todd McNutt

    发明人： Vladimir Pekar ,  Michael Reinhold Kaus ,  Todd McNutt

    IPC分类号： G06K9/00 ,  G06K9/34

    CPC分类号： G06T17/20 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/10081 ,  G06T2207/20092 ,  G06T2207/30004

    摘要： A delineation of a structure of interest can be performed by fitting 3D deformable models, for example, represented by polygonal measures, to the boundaries of the structure of interest. The deformable model fitting process is guided by minimization of the sum of an external energy, based on image feature information, which attracts the mesh to the organ boundaries and an internal energy, which preserves the consistent shape of the mesh. A frequent problem is that the images do not contain sufficient reliable image feature information, such as image gradients, to attract the mesh. According to the present invention, manually drawn attractors in the form of complete or partial contours corresponding to boundaries of the structure of interest are placed into the images which do not contain sufficient feature information. These attractors may easily be discriminated by a subsequent segmentation process. Due to this, advantageously, a 3D deformable model can be fitted to structures of interest in images with poor contrast, noise or image artifacts.

    摘要翻译： 可以通过将例如由多边形度量表示的3D可变形模型拟合到感兴趣的结构的边界来执行感兴趣的结构的描绘。 可变形模型拟合过程是基于图像特征信息的最小化引导的，该图像特征信息将网格吸引到器官边界和内部能量，这保留了网格的一致形状。 一个常见的问题是，图像不包含足够可靠的图像特征信息，如图像梯度，以吸引网格。 根据本发明，将对应于感兴趣结构的边界的完整或部分轮廓形式的手动吸引器放置在不包含足够的特征信息的图像中。 这些吸引子可以容易地被随后的分割过程区分开。 因此，有利地，可以将3D可变形模型拟合到具有差的对比度，噪声或图像伪像的图像中的感兴趣的结构。

    Radiotherapeutic Treatment Plan Adaptation
    9.
    发明申请
    Radiotherapeutic Treatment Plan Adaptation 有权
    放射治疗计划适应

    公开(公告)号：US20110103551A1

    公开(公告)日：2011-05-05

    申请号：US11573564

    申请日：2005-07-28

    申请人： Matthieu Bal ,  Lothar Spies ,  Todd McNutt

    发明人： Matthieu Bal ,  Lothar Spies ,  Todd McNutt

    IPC分类号： A61N5/10

    CPC分类号： A61N5/103 ,  A61N5/1031 ,  A61N2005/1061 ,  G06F19/00 ,  G06F19/3481

    摘要： In a radiation therapy method, one or more planning images are acquired (102) of a subject. Features of at least malignant tissue are contoured in the one or more planning images to produce one or more initial feature contours. One or more treatment images of the subject are acquired (114). The one or more initial feature contours are updated (122) based on the one or more treatment images. Radiation treatment parameters are optimized (126) based upon the updated one or more feature contours. Radiation treatment of the subject is performed (130) using the optimized parameters.

    摘要翻译： 在放射治疗方法中，获取对象的一个​​或多个规划图像（102）。 至少恶性组织的特征在一个或多个规划图像中具有轮廓，以产生一个或多个初始特征轮廓。 获取对象的一个​​或多个处理图像（114）。 一个或多个初始特征轮廓基于一个或多个治疗图像被更新（122）。 基于更新的一个或多个特征轮廓对辐射处理参数进行优化（126）。 使用优化的参数进行受试者的放射治疗（130）。

    BENCH-TOP IMAGE-GUIDED CONFORMAL IRRADIATION SYSTEM FOR LABORATORY ANIMALS
    10.
    发明申请
    BENCH-TOP IMAGE-GUIDED CONFORMAL IRRADIATION SYSTEM FOR LABORATORY ANIMALS 审中-公开
    用于实验动物的BENCH-TOP图像导向一致辐射系统

    公开(公告)号：US20090046831A1

    公开(公告)日：2009-02-19

    申请号：US12281944

    申请日：2007-03-12

    申请人： John Wai-chiu Wong ,  Todd McNutt ,  Elwood P. Armour ,  Eric Cassel Ford

    发明人： John Wai-chiu Wong ,  Todd McNutt ,  Elwood P. Armour ,  Eric Cassel Ford

    IPC分类号： A61B6/00

    CPC分类号： G01T1/2985 ,  A61B6/035 ,  A61B6/04 ,  A61B6/0457 ,  A61B6/4233 ,  A61B6/4441 ,  A61B6/4476 ,  A61B6/508 ,  A61B2503/40 ,  A61N5/1049 ,  A61N2005/1061 ,  A61N2005/1091

    摘要： An image-guided irradiation system has a support stage, a stage-positioning assembly connected to the support stage, an x-ray source attached to a support arm in which the support arm is movable relative to the support stage, a flat-panel x-ray detector disposed proximate the support stage, and at least one of a collimator or an x-ray lens selectively disposable between the x-ray source and the support stage. The x-ray source is suitable to provide an imaging beam of X-rays at a first photon energy and is suitable to provide an irradiation beam of X-rays at a second photon energy. The collimator or x-ray lens is structured and arranged to define at least a width of the irradiation beam when it is disposed between the x-ray source and the support stage while the x-ray source is in operation.

    摘要翻译： 图像引导照射系统具有支撑台，连接到支撑台的平台定位组件，附接到支撑臂的X射线源，支撑臂可相对于支撑台移动到支撑台中，平板x 设置在支撑台附近的射线检测器以及可选地一次性地在x射线源和支撑台之间的准直器或x射线透镜中的至少一个。 x射线源适合于以第一光子能量提供X射线的成像束，并且适于在第二光子能量处提供X射线的照射束。 准直器或X射线透镜被构造和布置成当X射线源在操作中时被放置在x射线源和支撑台之间时限定照射束的至少一个宽度。