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    METHOD OF COMPUTED TOMOGRAPHY IMAGING
    4.
    发明申请
    METHOD OF COMPUTED TOMOGRAPHY IMAGING 审中-公开
    计算机断层摄影成像方法

    公开(公告)号：WO2017080866A1

    公开(公告)日：2017-05-18

    申请号：PCT/EP2016/076280

    申请日：2016-11-01

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： PROKSA, Roland ,  DAERR, Heiner ,  MUENZEL, Daniela ,  NOEL, Peter

    IPC: A61B6/03 ,  A61B6/00

    CPC classification number: A61B6/032 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  A61B6/486 ,  A61B6/50 ,  A61B6/507

    Abstract: The invention relates to a method of Computed Tomography imaging comprising: a. Performing a single acquisition of image data from at least two contrast agents into a blood vessel network, a first contrast agent among said at least two contrast agents having been in said blood vessel network for a longer time than a second contrast agent among said at least two contrast agents, b. Processing said image data using K-Edge detection and/or iodine delineation to separate data associated with each contrast agents in order to obtain a concentration map of each contrast agent, c. Determining from said image data a first part of the blood vessel network comprising both the first contrast agent and the second contrast agent, and a second part of the blood vessel network comprising only the first contrast agent, d. Calculating a partial blood volume map of the first part of the blood vessel network based on the total amount of second contrast agent and on the concentration map of the second contrast agent, e. Calculating a partial blood volume map of the second part of the blood vessel network based on the total amount of first contrast agent, on the concentration map of the first contrast agent and on the partial blood volume map of the first part of the blood vessel network.

    Abstract translation: 本发明涉及一种计算机断层摄影成像方法，包括：a。 执行从至少两种造影剂到血管网络中的图像数据的单次采集，所述至少两种造影剂中的第一造影剂已经在所述血管网络中比在所述至少两种造影剂中的第二造影剂更长时间 两种造影剂，b。 使用K-Edge检测和/或碘描绘处理所述图像数据以分离与每个造影剂相关联的数据以获得每个造影剂的浓度图，c。 从所述图像数据确定包括第一造影剂和第二造影剂两者的血管网络的第一部分，以及仅包括第一造影剂的血管网络的第二部分d。 基于第二造影剂的总量和第二造影剂的浓度图计算血管网络的第一部分的局部血容量图，e。 基于第一造影剂的总量，在第一造影剂的浓度图上以及血管网络的第一部分的部分血量图上计算血管网络的第二部分的局部血容量图

    ROBUST RECONSTRUCTION FOR DARK-FIELD AND PHASE CONTRAST CT
    5.
    发明申请
    ROBUST RECONSTRUCTION FOR DARK-FIELD AND PHASE CONTRAST CT 审中-公开
    用于暗场和相位对比CT的稳健重建

    公开(公告)号：WO2016207423A1

    公开(公告)日：2016-12-29

    申请号：PCT/EP2016/064799

    申请日：2016-06-27

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： KOEHLER, Thomas ,  BRENDEL, Bernhard Johannes ,  NOEL, Peter ,  PFEIFFER, Franz ,  VON TEUFFENBACH, Maximilian

    IPC: G06T11/00

    CPC classification number: G06T11/006 ,  A61B6/4208 ,  A61B6/5205 ,  G06T2211/424

    Abstract: A system and related method for signal processing. Interferometric projection data reconstructed into one or more images for a spatial distribution of a physical property of an imaged object. The interferometric projection data is derived from signals acquired by an X-ray detector (D), said signals caused by X-ray radiation after interaction of said X-ray radiation with an interferometer and with the object (OB) to be imaged, said interferometer (IF) having a reference phase. A reconstructor (RECON) reconstructs for the image(s) by fitting said data to a signal model by adapting fitting variables, said fitting variables including i) one or more imaging variables for the one or more images and ii), in addition to said one or more imaging variables, a dedicated phase variable for a fluctuation of said reference phase.

    Abstract translation: 一种用于信号处理的系统及相关方法。 干涉测量投影数据被重建成一个或多个图像，用于成像对象的物理属性的空间分布。 所述干涉投影数据是从由X射线检测器（D）获取的信号导出的，所述信号由所述X射线辐射与所述X射线辐射与干涉仪相互作用并与要成像的物体（OB）之间的X射线辐射引起，所述 干涉仪（IF）具有参考相位。 重建器（RECON）通过将所述数据拟合到信号模型中来重构图像，所述拟合变量包括i）一个或多个图像的一个或多个成像变量，以及ii）除了所述 一个或多个成像变量，用于所述参考相位的波动的专用相位变量。

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