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    A METHOD AND X-RAY SYSTEM FOR COMPUTER AIDED DETECTION OF STRUCTURES IN X-RAY IMAGES
    6.
    发明公开
    A METHOD AND X-RAY SYSTEM FOR COMPUTER AIDED DETECTION OF STRUCTURES IN X-RAY IMAGES 有权
    RERNTGENBILDERN VERFAHREN UNDRÖNTGENSYSTEMZURCOMPUTERGESTÜTZTENERKENNUNG VON STRUKTUREN

    公开(公告)号：EP2976746A2

    公开(公告)日：2016-01-27

    申请号：EP14710390.7

    申请日：2014-02-20

    申请人： Koninklijke Philips N.V. ,  Philips GmbH

    发明人： FREDENBERG, Jon Erik ,  LUNDQVIST, Mats Vilhelm ,  ROESSL, Ewald ,  ERHARD, Klaus ,  KOEHLER, Thomas ,  CEDERSTRÖM, Björn ,  MAACK, Hanns-Ingo

    IPC分类号： G06T5/50 ,  A61B6/00

    CPC分类号： G06K9/4671 ,  A61B6/482 ,  A61B6/502 ,  G06K9/52 ,  G06K9/6201 ,  G06T5/50 ,  G06T7/0012 ,  G06T7/60 ,  G06T2207/10116 ,  G06T2207/30068 ,  G06T2207/30242

    摘要： The present invention relates to X-ray imaging technology as well as image post-processing. Particularly, the present invention relates to a method for computer aided detection of structures in X-ray images as well as an X-ray system. A computer aided detection algorithm visibly determines tissue structures in X-ray image information and subsequently matches the shape of a determined tissue structure with a library of known tissue structures for characterizing the type of determined tissue structure. The determination of a tissue structure and thus the characterization of the type of the tissue structure may be enhanced when employing also spectral information, in particular energy information of the acquired X-ray image. Accordingly, a method (70,80,90) for computer aided detection of structures and X-ray images is provided, comprising the steps of obtaining (72) spectral X-ray image information of an object, wherein the spectral X-ray image information constitutes at least one X-ray image, detecting (74) a tissue structure of interest in the X-ray image by employing a computer aided detection algorithm, wherein detecting a tissue structure of interest in the X-ray image comprises the computer aided detection algorithm being adapted to evaluate the X-ray image for tissue structure shape and compare the tissue structure shape with a plurality of pre-determined tissue structure shapes and wherein the computer aided detection algorithm is adapted to evaluate spectral information of the X-ray image for detecting the tissue structure of interest.

    摘要翻译： 本发明涉及X射线成像技术以及图像后处理。 特别地，本发明涉及一种用于计算机辅助检测X射线图像中的结构的方法以及X射线系统。 计算机辅助检测算法​​可视地确定X射线图像信息中的组织结构，然后将确定的组织结构的形状与已知组织结构的文库相匹配，以表征所确定的组织结构的类型。 当采用光谱信息，特别是所获得的X射线图像的能量信息时，可以增强组织结构的确定以及因此组织结构类型的表征。 因此，提供了一种用于结构和X射线图像的计算机辅助检测的方法（70,80,90），包括以下步骤：获得（72）对象的光谱X射线图像信息，其中所述光谱X射线图像 信息构成至少一个X射线图像，通过采用计算机辅助检测算法​​来检测（74）X射线图像中感兴趣的组织结构，其中检测X射线图像中感兴趣的组织结构包括计算机辅助 检测算法适于评估组织结构形状的X射线图像，并将组织结构形状与多个预定组织结构形状进行比较，其中计算机辅助检测算法​​适于评估X射线图像的光谱信息 用于检测感兴趣的组织结构。

    APPARATUS FOR CHARACTERIZATION OF A FEATURE OF A BODY PART
    9.
    发明公开
    APPARATUS FOR CHARACTERIZATION OF A FEATURE OF A BODY PART 审中-公开

    公开(公告)号：EP3359044A1

    公开(公告)日：2018-08-15

    申请号：EP16778272.1

    申请日：2016-09-28

    申请人： Koninklijke Philips N.V.

    发明人： FREDENBERG, Jon Erik ,  ERHARD, Klaus

    IPC分类号： A61B6/02 ,  A61B6/00

    CPC分类号： A61B6/025 ,  A61B6/4241 ,  A61B6/469 ,  A61B6/482 ,  A61B6/502

    摘要： The present invention relates to an apparatus for characterization of a feature in a body part. It is describe to provide (210) tomosynthesis medical data comprising a plurality of images of the body part, wherein the plurality of images comprise image data associated with a plurality of rays of radiation that have passed through the body part, wherein the image data comprises spectral data associated with at least two photon energy levels of the plurality of rays of radiation, wherein the medical data comprises data of the feature. A delineated boundary of the feature is determined (220). At least one material composition of the body part inside the delineated boundary is determined (240) comprising a function of the spectral data inside the delineated boundary. The feature is characterised (250) as a function of the at least one material composition inside the delineated boundary of the feature. Data representative of the feature is output (260).

    X-RAY PRE-EXPOSURE CONTROL DEVICE
    10.
    发明公开
    X-RAY PRE-EXPOSURE CONTROL DEVICE 审中-公开
    X射线预曝光控制装置

    公开(公告)号：EP3220825A1

    公开(公告)日：2017-09-27

    申请号：EP15797950.1

    申请日：2015-11-16

    申请人： Koninklijke Philips N.V.

    发明人： ERHARD, Klaus

    IPC分类号： A61B6/00

    CPC分类号： G03B42/026 ,  A61B6/04 ,  A61B6/462 ,  A61B6/466 ,  A61B6/467 ,  A61B6/488 ,  A61B6/5211 ,  G06T7/136

    摘要： The invention relates to an X-ray pre-exposure control device (10), an X-ray imaging system (1), an X-ray imaging method, and a computer program element for controlling such device and a computer readable medium having stored such computer program element. The X-ray pre-exposure control device (10) comprises a subject detection unit (11), a subject model unit (12), an interface unit (13), a processing unit (14), and a display unit (15). The subject detection unit (11) is configured to detect subject data of the subject (111) to be exposed. The subject model unit (12) is configured to provide a subject model and to refine the subject model based on the subject data into a refined subject model. The interface unit (13) is configured to provide setting data of an X-ray unit (131) to be used for exposing the subject. The processing unit (14) is configured to calculate a virtual X-ray projection (151) based on the refined subject model and the provided setting data. The display unit (15) is configured to display the virtual X-ray projection (151).

    摘要翻译： 本发明涉及一种X射线预曝光控制装置（10），X射线成像系统（1），X射线成像方法和用于控制这种装置的计算机程序单元， 这种计算机程序元件。 该X射线预曝光控制装置（10）包括被摄体检测单元（11），被摄体模型单元（12），接口单元（13），处理单元（14）和显示单元（15） 。 被摄体检测单元（11）被配置为检测要被曝光的被摄体（111）的被摄体数据。 主体模型单元（12）被配置为提供主题模型并且基于主题数据将主题模型细化为精炼的主题模型。 接口单元（13）被配置为提供用于曝光对象的X射线单元（131）的设置数据。 处理单元（14）被配置为基于精炼对象模型和提供的设置数据来计算虚拟X射线投影（151）。 显示单元（15）被配置为显示虚拟X射线投影（151）。