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公开(公告)号:US20120035463A1
公开(公告)日:2012-02-09
申请号:US13260735
申请日:2010-03-02
申请人: Vladimir Pekar , Daniel Bystrov
发明人: Vladimir Pekar , Daniel Bystrov
CPC分类号: A61N5/103 , G06F19/3481 , G16H20/40 , G16H30/20
摘要: When delineating anatomical structures in a medical image of a patient for radiotherapy planning, a processor (18) detects landmarks (24) in a low-resolution image (e.g., MRI or low-dose CT) and maps the detected landmarks to reference landmarks (28) in a reference contour of the anatomical structure. The mapped landmarks facilitate adjusting the reference contour to fit the anatomical structure. The adjusted reference contour data is transformed and applied to a second image using a thin-plate spline, and the adjusted high-resolution image is used for radiotherapy planning.
摘要翻译: 当描绘用于放射治疗规划的患者的医学图像中的解剖结构时,处理器(18)以低分辨率图像(例如,MRI或低剂量CT)检测地标(24),并将检测到的地标映射到参考地标( 28)在解剖结构的参考轮廓中。 映射的标记有助于调整参考轮廓以适应解剖结构。 使用薄板样条将调整后的参考轮廓数据变换并应用于第二图像,并且将调整后的高分辨率图像用于放射治疗计划。
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公开(公告)号:US08000508B2
公开(公告)日:2011-08-16
申请号:US11814406
申请日:2006-01-05
申请人: Daniel Bystrov , Vladimir Pekar , Kirsten Meetz , Thomas Netsch , Stewart Young
发明人: Daniel Bystrov , Vladimir Pekar , Kirsten Meetz , Thomas Netsch , Stewart Young
IPC分类号: G06K9/00
CPC分类号: G06T13/20 , G06T7/246 , G06T2207/10076 , G06T2207/10088 , G06T2207/30048
摘要: In a diagnostic imaging system (10), a user interface (82) facilitates viewing of 4D kinematic data sets. A set of reference points is selected in a first 3D image to designate an anatomical component. An algorithm (104) calculates a propagation of the selected reference points from the first 3D image into other 3D images. Transforms which describe the propagation of the reference points between 3D images are defined. An aligning algorithm (112) applies inverse of the transforms to the 3D images to define a series of frames for the video processor (120) to display, in which frames the designated anatomical component defined by the reference points in each of the 3D images remains fixed while the other portions of the anatomical region of interest move relative to the fixed designated anatomical component.
摘要翻译: 在诊断成像系统(10)中,用户界面(82)便于观看4D运动数据集。 在第一3D图像中选择一组参考点以指定解剖组件。 算法(104)计算所选择的参考点从第一3D图像到其他3D图像的传播。 定义描述3D图像之间参考点传播的变换。 对准算法(112)将变换的逆向应用于3D图像以定义用于视频处理器(120)显示的一系列帧,其中由每个3D图像中的参考点定义的指定解剖组件保留 固定,而感兴趣的解剖区域的其他部分相对于固定的指定解剖部件移动。
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公开(公告)号:US08781254B2
公开(公告)日:2014-07-15
申请号:US12516357
申请日:2007-11-26
申请人: Stewart Young , Daniel Bystrov , Thomas Netsch , Michael Kaus , Vladimir Pekar
发明人: Stewart Young , Daniel Bystrov , Thomas Netsch , Michael Kaus , Vladimir Pekar
IPC分类号: G06K9/36
CPC分类号: G06T7/149 , G06T7/12 , G06T7/70 , G06T2207/30016
摘要: A method of data processing is provided for estimating a position of an object in an image from a position of a reference object in a reference image. The method includes learning the position of the reference object in the reference image and its relation to a set of reference landmarks in the reference image, accessing the image, accessing the relation between the position of the reference object and the set of the reference landmarks, identifying a set of landmarks in the image corresponding to the set of the reference landmarks, and applying the relation to the set of landmarks in the image for estimating the position of the object in the image.
摘要翻译: 提供一种数据处理方法,用于从参考图像中的参考对象的位置估计图像中的对象的位置。 该方法包括:在参考图像中学习参考对象的位置及其与参考图像中的一组参考地标的关系,访问图像,访问参考对象的位置与参考地标集合之间的关系, 识别对应于所述参考地标集合的图像中的一组地标,以及将所述关系应用于所述图像中的所述地标集合,以估计所述图像中的对象的位置。
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公开(公告)号:US20100295848A1
公开(公告)日:2010-11-25
申请号:US12863462
申请日:2009-01-07
申请人: Ruediger Grewer , Sebastian Dries , Daniel Bystrov , Vladimir Pekar , Torbjoern Vik , Heinrich Schulz , Michael Kaus
发明人: Ruediger Grewer , Sebastian Dries , Daniel Bystrov , Vladimir Pekar , Torbjoern Vik , Heinrich Schulz , Michael Kaus
CPC分类号: G06T7/11 , G06T2207/20101 , G06T2207/20128 , G06T2207/30004
摘要: When adapting models of anatomical structures in a patient for diagnosis or therapeutic planning, an atlas (26) of predesigned anatomical structure models or image volumes can be accessed, and a segmentation of one or more such structures can be selected and overlaid on an a 3D image of corresponding structure(s) in a clinical image (52) of a patient. A user can click on an initially unapproved segmentation 5 landmark (72) on the patient image (52), reposition the unapproved landmark, and approve the repositioned landmark. Remaining unapproved landmarks (72) are then repositioned as a function of the position of the approved landmark (92) using one or more interpolation techniques to adapt the model to the patient image on the fly.
摘要翻译: 当适应用于诊断或治疗计划的患者中的解剖结构的模型时,可以访问预先设计的解剖结构模型或图像体积的图集(26),并且可以选择并覆盖在3D上的一个或多个这样的结构的分割 在患者的临床图像(52)中的相应结构的图像。 用户可以点击患者图像(52)上的最初未被批准的细分5地标(72),重新定位未经批准的地标,并批准重新定位的地标。 然后通过使用一种或多种内插技术将剩余的未经批准的地标(72)重新定位为批准的地标(92)的位置的函数,以便将模型随时适应患者图像。
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公开(公告)号:US20090116765A1
公开(公告)日:2009-05-07
申请号:US12066512
申请日:2006-09-14
申请人: Daniel Bystrov , Vladimir Pekar
发明人: Daniel Bystrov , Vladimir Pekar
IPC分类号: G06K9/32
摘要: The invention relates to a registration method (100) of registering a second image dataset with a first image dataset on the basis of a set of landmarks, said registration method (100) comprising a weight-assigning step (125) for assigning a weight to each coordinate of each landmark from the set of landmarks and a registering step (145) for registering the second image dataset with the first image dataset on the basis of the weight assigned to the each coordinate. Choosing an appropriate set of landmarks and assigning an appropriate weight to each coordinate of each landmark from the set of landmarks can be used for optimizing selected displacements of a designated anatomical structure comprising elastic bodies and/or a plurality of independent rigid bodies in a sequence of image datasets. This enables rendering a sequence of views wherein the designated anatomical structure is not displaced off a viewing plane and/or a selected part of the designated anatomical structure is not displaced in a viewing plane.
摘要翻译: 本发明涉及一种基于一组地标登记第一图像数据集的第二图像数据集的登记方法(100),所述登记方法(100)包括权重分配步骤(125),用于将权重分配给 基于所述一组地标的每个地标的每个坐标和用于根据分配给每个坐标的权重将第二图像数据集与第一图像数据集进行登记的登记步骤(145)。 可以使用合适的地标集合并从该地标集合为每个地标的每个坐标分配适当的权重,以优化包括弹性体和/或多个独立刚体的指定解剖结构的选定位移 图像数据集。 这使得能够呈现一系列视图,其中指定的解剖结构不会离开观察平面,和/或指定的解剖结构的选定部分不会在观察平面中移位。
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公开(公告)号:US08698795B2
公开(公告)日:2014-04-15
申请号:US12863462
申请日:2009-01-07
申请人: Ruediger Grewer , Sebastian Dries , Daniel Bystrov , Vladimir Pekar , Torbjoern Vik , Heinrich Schulz , Michael Kaus
发明人: Ruediger Grewer , Sebastian Dries , Daniel Bystrov , Vladimir Pekar , Torbjoern Vik , Heinrich Schulz , Michael Kaus
CPC分类号: G06T7/11 , G06T2207/20101 , G06T2207/20128 , G06T2207/30004
摘要: When adapting models of anatomical structures in a patient for diagnosis or therapeutic planning, an atlas (26) of predesigned anatomical structure models or image volumes can be accessed, and a segmentation of one or more such structures can be selected and overlaid on an a 3D image of corresponding structure(s) in a clinical image (52) of a patient. A user can click on an initially unapproved segmentation 5 landmark (72) on the patient image (52), reposition the unapproved landmark, and approve the repositioned landmark. Remaining unapproved landmarks (72) are then repositioned as a function of the position of the approved landmark (92) using one or more interpolation techniques to adapt the model to the patient image on the fly.
摘要翻译: 当适应用于诊断或治疗计划的患者中的解剖结构的模型时,可以访问预先设计的解剖结构模型或图像体积的图集(26),并且可以选择并覆盖在3D上的一个或多个这样的结构的分割 在患者的临床图像(52)中的相应结构的图像。 用户可以点击患者图像(52)上的最初未被批准的分割5地标(72),重新定位未经批准的地标,并批准重新定位的地标。 然后,使用一种或多种内插技术将剩余的未经批准的地标(72)重新定位为批准的地标(92)的位置的函数,以使模型在飞行中适应患者图像。
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公开(公告)号:US20120027277A1
公开(公告)日:2012-02-02
申请号:US13262708
申请日:2010-03-02
申请人: Torbjoern Vik , Daniel Bystrov , Roland Opfer , Vladimir Pekar
发明人: Torbjoern Vik , Daniel Bystrov , Roland Opfer , Vladimir Pekar
IPC分类号: G06K9/00
CPC分类号: G06T7/149 , G06T7/12 , G06T2207/10072 , G06T2207/20101 , G06T2207/20116 , G06T2207/30004
摘要: A system and method for segmenting an image of an organ. The system and method including selecting a surface model of the organ, selecting a plurality of points on a surface of an image of the organ and transforming the surface model to the plurality of points on the image.
摘要翻译: 用于分割器官的图像的系统和方法。 所述系统和方法包括选择器官的表面模型,在器官的图像的表面上选择多个点,并将表面模型转换成图像上的多个点。
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公开(公告)号:US09724538B2
公开(公告)日:2017-08-08
申请号:US13260735
申请日:2010-03-02
申请人: Vladimir Pekar , Daniel Bystrov
发明人: Vladimir Pekar , Daniel Bystrov
CPC分类号: A61N5/103 , G06F19/3481 , G16H20/40 , G16H30/20
摘要: When delineating anatomical structures in a medical image of a patient for radiotherapy planning, a processor (18) detects landmarks (24) in a low-resolution image (e.g., MRI or low-dose CT) and maps the detected landmarks to reference landmarks (28) in a reference contour of the anatomical structure. The mapped landmarks facilitate adjusting the reference contour to fit the anatomical structure. The adjusted reference contour data is transformed and applied to a second image using a thin-plate spline, and the adjusted high-resolution image is used for radiotherapy planning.
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公开(公告)号:US20100272330A1
公开(公告)日:2010-10-28
申请号:US12671519
申请日:2008-07-29
申请人: Vladimir Pekar , Daniel Bystrov
发明人: Vladimir Pekar , Daniel Bystrov
IPC分类号: G06K9/62
CPC分类号: G06K9/3216 , A61B6/503 , A61B6/504 , G06K2209/05 , G06T7/32 , G06T7/33 , G06T7/337 , G06T2207/10072 , G06T2207/20128 , G06T2207/30012
摘要: The invention relates to a system (100) for registering an atlas image from an atlas of multidimensional images with an objective image, the system comprising a generation unit (105) for generating a candidate transformation for transforming a first region of the atlas image, a transformation unit (110) for transforming the first region of the atlas image using the candidate transformation, a similarity unit (120) for computing a measure of similarity of the transformed first region of the atlas image and a corresponding first region of the objective image, an evaluation unit (130) for evaluating the candidate transformation using a criterion based on the computed measure of similarity and determining an optimal transformation based on the evaluation of the candidate transformation, an extension unit (140) for extending the optimal transformation of the first region of the atlas image to a second region of the atlas image, wherein the second region comprises the first region, thereby creating a registration transformation and a registration unit (150) for transforming the second region using the registration transformation, thereby registering the atlas image with the objective image. Advantageously, the system (100) does not require setting landmark positions in the objective image. A further advantage of the system (100) is that since the similarity measure is computed locally, i.e., based on the first region of the atlas image, the registration is fast and thus attractive for clinical use.
摘要翻译: 本发明涉及一种用于从具有客观图像的多维图像的图集登记图集图像的系统(100),该系统包括用于生成用于变换图集的第一区域的候选变换的生成单元(105), 变换单元(110),用于使用所述候选变换来变换所述图集的第一区域;相似度单元(120),用于计算所述图集的变换的第一区域与所述客观图像的对应的第一区域的相似度的度量, 评估单元(130),用于使用基于所计算的相似度的测量的标准来评估候选变换,并且基于候选变换的评估来确定最佳变换;扩展单元(140),用于扩展第一区域的最优变换 的图谱图像到图集图像的第二区域,其中第二区域包括第一区域,由此c 重新配准注册变换和注册单元(150),用于使用注册变换来变换第二区域,由此登记具有客观图像的图集图像。 有利地,系统(100)不需要在目标图像中设置界标位置。 系统(100)的另一个优点在于,由于本地计算相似性度量,即基于图集图像的第一区域,因此登记是快速的,因此对于临床使用是有吸引力的。
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公开(公告)号:US20080279428A1
公开(公告)日:2008-11-13
申请号:US10596133
申请日:2004-12-08
IPC分类号: G06T7/00
CPC分类号: G06T7/32 , G06T2207/10081 , G06T2207/30004
摘要: The present invention aims at improving the point-based elastic registration paradigm. According to the present invention, a force field, for example, with Gaussian-shaped forces, is applied at several points to the image to be deformed. In this case, no landmark correspondences are required and the optimal positions of the force application point are found automatically, which minimizes the difference between the source and target image. Advantageously, this may allow to control a local influence of individual control points.
摘要翻译: 本发明旨在改进基于点的弹性登记范例。 根据本发明,例如用高斯形力作用的力场在几个点处施加到要变形的图像上。 在这种情况下,不需要地标对应,并且自动找到力施加点的最佳位置,这最小化了源图像和目标图像之间的差异。 有利地,这可以允许控制各个控制点的局部影响。
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