Progressive model-based adaptation
    61.
    发明授权
    Progressive model-based adaptation 有权
    基于逐步模型的适应

    公开(公告)号:US09129387B2

    公开(公告)日:2015-09-08

    申请号:US11917937

    申请日:2006-06-20

    IPC分类号: G06F17/50 G06T7/00

    摘要: The invention relates to an adaptation system for adapting a deformable model comprising a plurality of model elements to an object of interest in an image data set, the adaptation system comprising a selector for selecting at least one image- driven model element from the plurality of model elements and an adapter for adapting the deformable model on the basis of optimizing a model energy of the deformable model, the model energy comprising an internal energy of the plurality of model elements and an external energy of the at least one image-driven model element, thereby adapting the deformable model. By enabling the adaptation system to selectively choose the image- driven model elements, the adaptation system of the current invention allows excluding a poorly adaptable model element from interacting with the image data set and thus from being pulled and/or pushed by the image data set into a wrong location.

    摘要翻译: 本发明涉及一种用于将包括多个模型元素的可变形模型适配成图像数据集中的感兴趣对象的自适应系统,所述自适应系统包括用于从多个模型中选择至少一个图像驱动模型元素的选择器 元件和用于在优化可变形模型的模型能量的基础上适配可变形模型的适配器,模型能量包括多个模型元素的内部能量和至少一个图像驱动模型元素的外部能量, 从而适应可变形模型。 通过使自适应系统能够选择性地选择图像驱动的模型元素,本发明的自适应系统允许排除不良适应性模型元素与图像数据集的交互,从而被图像数据集拉拽和/或推动 进入错误的位置。

    Model-based coronary centerline localization
    64.
    发明授权
    Model-based coronary centerline localization 有权
    基于模型的冠状动脉中心线定位

    公开(公告)号:US08160332B2

    公开(公告)日:2012-04-17

    申请号:US12443490

    申请日:2007-09-28

    IPC分类号: G06K9/00

    摘要: The invention relates to a system (100) for registering a vessel model with an image data set based on a joined model comprising a reference object model and the vessel model, the system comprising: a placement unit (110) for placing the joined model in a space of the image data set, thereby creating a placed joined model comprising a placed reference object model and a placed vessel model; a computation unit (120) for computing a deformation field based on a landmark displacement field comprising displacements of landmarks of the placed reference object model relative to corresponding landmarks in the image data set; a transformation unit (130) for transforming the placed joined model using the deformation field, thereby creating a transformed joined model comprising a transformed reference object model and a transformed vessel model; and a registration unit (140) for registering the transformed vessel model with the image data set based on modifying the transformed vessel model and optimizing an objective function of the modified transformed vessel model, wherein the objective function comprises a location-prior term based on a localization of the modified transformed vessel model relative to the transformed joined model. Hence, the system is arranged to model a vessel taking into account the localization of a vessel model relative to a reference anatomical structure described by a reference model.

    摘要翻译: 本发明涉及一种用于根据包括参考对象模型和血管模型的联合模型将具有图像数据集的血管模型登记的系统(100),所述系统包括:放置单元(110),用于将所连接的模型放置在 图像数据集合的空间,从而创建包括放置的参考对象模型和放置的容器模型的放置的连接模型; 计算单元(120),用于基于地标位移场计算变形场,所述地标位移场包括相对于所述图像数据组中的对应地标放置的所述参考对象模型的界标的位移; 变换单元(130),用于使用变形场来变换放置的接合模型,从而创建包括变换的参考对象模型和变换的容器模型的变换的连接模型; 以及注册单元(140),用于基于修改所述经变换的血管模型并优化所述经修改的转化的血管模型的目标函数,将经变换的血管模型与所述图像数据集进行登记,其中所述目标函数包括基于 修改的转化血管模型相对于转化的连接模型的定位。 因此,该系统被设置成考虑到血管模型相对于由参考模型描述的参考解剖结构的定位来建模血管。

    Apparatus and method for determining an injection point for targeted drug
    65.
    发明授权
    Apparatus and method for determining an injection point for targeted drug 有权
    用于确定靶向药物注射点的装置和方法

    公开(公告)号:US08150490B2

    公开(公告)日:2012-04-03

    申请号:US11815878

    申请日:2006-02-13

    IPC分类号: A61B6/00

    摘要: An apparatus determines an injection point for targeted drug delivery into a patient's body by injection of the drug into a vessel feeding a target area including a target. To provide the interventionalist with an objective and quantitative assessment of potential drug injection points instead of letting him rely on his subjective impression from the visual inspection of DSA sequences, a processor (4) includes an identification routine (41) for identification of a vessel tree topology of vessels feeding the target area, a flow determination routine (42) for determining the percentage of drug material delivered to said target after injection into different potential injection points in the vessel tree, a selection routine (43) for selecting as optimal injection point the potential injection point resulting in the highest percentage of drug delivery to the target.

    摘要翻译: 装置通过将药物注射到进食包括靶的靶区域的血管中来确定靶向药物向患者体内输送的注射点。 为了向介入者提供对潜在药物注射点的客观和定量评估,而不是让他依赖于他对DSA序列的视觉检查的主观印象,处理器(4)包括用于识别血管树的识别程序(41) 供给目标区域的血管的拓扑结构,用于确定在注射到血管树中的不同潜在注射点之后输送到所述靶的药物材料的百分比的流量确定程序(42),用于选择最佳注射点的选择程序 潜在的注射点导致药物递送至目标的最高百分比。

    Method for facilitating post-processing of images using deformable meshes
    66.
    发明授权
    Method for facilitating post-processing of images using deformable meshes 有权
    使用可变形网格促进图像后处理的方法

    公开(公告)号:US08144950B2

    公开(公告)日:2012-03-27

    申请号:US12097855

    申请日:2006-12-14

    IPC分类号: G06K9/00

    摘要: Method and system for facilitating post-processing of images using deformable meshes in which a deformable mesh model of an object such as an organ is extended by attaching information thereon in order to simplify and/or facilitate a desired post-processing task so that the post-processing task effected when the mesh is applied to the same object in an additional image can expeditiously use this information. The information may be attached to the mesh after its creation, for example, upon segmentation of the same object in some training image. The post-processing task can therefore be performed automatically without user interaction upon segmentation of the object in the additional image. Information is encoded on the mesh by enumerating a list of triangles or vertices of the mesh which have to be considered in the subsequent, post-processing task and by optionally providing additional parameters defining the precise post-processing algorithm(s) to be used.

    摘要翻译: 使用可变形网格促进图像后处理的方法和系统,其中通过在其上附加信息来扩展诸如器官的对象的可变形网格模型,以简化和/或促进期望的后处理任务,使得该帖子 当将网格应用于附加图像中的同一对象时,处理任务即可快速使用此信息。 信息可以在其创建之后附加到网格上,例如,在一些训练图像中对相同对象进行分割时。 因此,在附加图像中的对象的分割之后,可以自动执行后处理任务,而无需用户交互。 通过枚举在后续的后处理任务中必须考虑的网格的三角形或顶点列表以及可选地提供定义要使用的精确后处理算法的附加参数,将信息编码在网格上。

    METHOD FOR ANALYZING A TUBE SYSTEM
    68.
    发明申请
    METHOD FOR ANALYZING A TUBE SYSTEM 审中-公开
    分析管系统的方法

    公开(公告)号:US20110002517A1

    公开(公告)日:2011-01-06

    申请号:US12920330

    申请日:2009-03-02

    IPC分类号: G06T7/00

    CPC分类号: G06T17/00 G16H50/50

    摘要: A method of analyzing a tube system in particular by image processing of images of the tube system is provided by the present invention. In order to achieve a simulation of a medium flow through a calculated tube model, the present invention gathers a tube model from a specific tube data set. By defining the necessary parameters of a virtual injection of the medium by the user, the medium flows through the model. Using this displayed simulation for generating at least two images leads to an artificial image sequence that might support a person, which wants to examine a real structure, that corresponds to the calculated model. This might be seen in.

    摘要翻译: 通过本发明提供了一种分析管系统的方法,特别是通过管系统的图像的图像处理来分析管系统。 为了通过计算的管模型实现介质流的模拟,本发明从特定的管数据集中收集管模型。 通过定义用户对介质的虚拟注入的必要参数,介质流经模型。 使用该显示的模拟来生成至少两个图像,导致可能支持想要检查与计算出的模型相对应的真实结构的人的人造图像序列。 这可能在。

    MODEL-BASED CORONARY CENTERLINE LOCALIZATION
    69.
    发明申请
    MODEL-BASED CORONARY CENTERLINE LOCALIZATION 有权
    基于模型的冠状动脉中心定位

    公开(公告)号:US20100046815A1

    公开(公告)日:2010-02-25

    申请号:US12443490

    申请日:2007-09-28

    IPC分类号: G06K9/00

    摘要: The invention relates to a system (100) for registering a vessel model with an image data set based on a joined model comprising a reference object model and the vessel model, the system comprising: a placement unit (110) for placing the joined model in a space of the image data set, thereby creating a placed joined model comprising a placed reference object model and a placed vessel model; a computation unit (120) for computing a deformation field based on a landmark displacement field comprising displacements of landmarks of the placed reference object model relative to corresponding landmarks in the image data set; a transformation unit (130) for transforming the placed joined model using the deformation field, thereby creating a transformed joined model comprising a transformed reference object model and a transformed vessel model; and a registration unit (140) for registering the transformed vessel model with the image data set based on modifying the transformed vessel model and optimizing an objective function of the modified transformed vessel model, wherein the objective function comprises a location-prior term based on a localization of the modified transformed vessel model relative to the transformed joined model. Hence, the system is arranged to model a vessel taking into account the localization of a vessel model relative to a reference anatomical structure described by a reference model.

    摘要翻译: 本发明涉及一种用于根据包括参考对象模型和血管模型的联合模型将具有图像数据集的血管模型登记的系统(100),该系统包括:一个放置单元(110),用于将连接的模型放置在 图像数据集合的空间,从而创建包括放置的参考对象模型和放置的容器模型的放置的连接模型; 计算单元(120),用于基于地标位移场计算变形场,所述地标位移场包括相对于所述图像数据组中的对应地标放置的所述参考对象模型的界标的位移; 变换单元(130),用于使用变形场来变换放置的接合模型,从而创建包括变换的参考对象模型和变换的容器模型的变换的连接模型; 以及注册单元(140),用于基于修改所述经变换的血管模型并优化所述经修改的转化的血管模型的目标函数,将经变换的血管模型与所述图像数据集进行登记,其中所述目标函数包括基于 修改的转化血管模型相对于转化的连接模型的定位。 因此,该系统被设置成考虑到血管模型相对于由参考模型描述的参考解剖结构的定位来建模血管。