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    APPARATUS FOR PHASE-CONTRAST IMAGING COMPRISING A DISPLACEABLE X-RAY DETECTOR ELEMENT AND METHOD
    2.
    发明公开
    APPARATUS FOR PHASE-CONTRAST IMAGING COMPRISING A DISPLACEABLE X-RAY DETECTOR ELEMENT AND METHOD 有权
    设备技术采用了侧滑射线探测器元件和方法相衬成像

    公开(公告)号：EP2509503A1

    公开(公告)日：2012-10-17

    申请号：EP10807374.3

    申请日：2010-12-03

    申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： ROESSL, Ewald ,  ENGEL, Klaus J. ,  VOGTMEIER, Gereon ,  GELLER, Dieter ,  MARTENS, Gerhard ,  KOEHLER, Thomas ,  SCHUSSER, Sebastian, Siegmund

    IPC分类号： A61B6/00 ,  G01N23/04

    CPC分类号： A61B6/00 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/4092 ,  A61B6/4291 ,  A61B6/484

    摘要： The present invention relates to X-ray image acquisition technology in general. Employing phase-contrast imaging for X-ray image acquisition may significantly enhance the quality and information content of images acquired. However, phase- contrast information may only be obtainable in a small detector region, possibly being too small for a sufficient field of view for specialized X-ray imaging applications. Accordingly, an apparatus for phase-contrast imaging is provided that may allow the acquisition of an enlarged field of view. According to the present invention an apparatus (1) for phase-contrast imaging is provided, comprising an X-ray source (2), an X-ray detector (12) element having a detector size, a beam splitter grating (8) and an analyzer grating (10). An object (6) is arrangeable between the X-ray source (2) and the X-ray detector (12). The beam splitter grating (8) and the analyzer grating (10) are arrangeable between the X-ray source (2) and the X-ray detector (12). X-ray source (2), the beam splitter grating (8), the analyzer grating (10) and the X-ray detector (12) are operatively coupled such that a phase-contrast image of the object (6) is obtainable. The apparatus (1) is adapted for acquiring a phase-contrast image having a field of view larger than the detector size. The X-ray detector element (12) is displaceable and by the displacement of the X-ray detector (12) a phase-contrast image of the field of view is obtainable.

    摘要翻译： 一种X射线图像采集装置用人相衬成像的视场放大包括X射线源到具有检测器尺寸，分束器光栅和上分析器光栅的X射线检测器元件。 一个目的是在X射线源和检测器之间可布置。 分束器光栅和分析器光栅是在X射线源和检测器之间可布置。 的X射线源，所述射束分裂器光栅，所述分析器光栅和X射线检测器可操作地耦合检查没有所述对象的相位对比图像可获得A. 该装置是配置为获取具有的视野比检测器尺寸大的一个领域，相位对比图像。 X射线检测器元件是可移动的，其中，由X射线检测器的位移，所述视场放大的相位对比图像可获得A.

    METHOD AND DEVICE FOR ANALYSING A REGION OF INTEREST IN AN OBJECT USING X-RAYS
    3.
    发明公开
    METHOD AND DEVICE FOR ANALYSING A REGION OF INTEREST IN AN OBJECT USING X-RAYS 有权
    方法和装置相关区域中的对象分析利用X射线

    公开(公告)号：EP2652487A1

    公开(公告)日：2013-10-23

    申请号：EP11805207.5

    申请日：2011-12-05

    申请人： Koninklijke Philips N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： CARLSEN, Ingwer-Curt ,  KOEHLER, Thomas ,  MARTENS, Gerhard ,  RÖSSL, Ewald ,  WIEMKER, Rafael

    IPC分类号： G01N23/04 ,  G01N23/20

    CPC分类号： G06T7/0012 ,  G01N23/046 ,  G01N2223/419

    摘要： A method and a device for analyzing a region of interest in an object is proposed. The method comprises: (a) providing measurement data by a differential phase contrast X-ray imaging system, and (b) analyzing characteristics of the object in the region of interest. Therein, the measurement data comprise a 2-dimensional or 3-dimensional set of pixels wherein for each pixel the measurement data comprises three types of image data spatially aligned with each other, including (i) absorption representing image data A, (ii) differential phase contrast representing image data D, and (iii) coherence representing image data C. The analyzing step is based, for each pixel, on a combination of at least two of information comprised in the absorption representing image data A and information comprised in the differential phase contrast representing image data D and information comprised in the coherence representing image data C.

    摘要翻译： 的方法和用于分析的对象中感兴趣区域的装置被提议。 该方法包括：（A）由微分相位对比X射线成像系统中提供的测量数据，以及（b）分析在所述感兴趣区域中的对象的特性。 在其中，所述测量数据包括二维或三维集合worin为所述测量数据包括三种类型的海誓山盟空间对齐的图像数据的每个像素的像素的，包括：（i）吸收表示图像数据A，（ⅱ）差动 相位对比表示图像数据D，和（iii）相干性表示图像数据C的分析步骤是基于针对每个像素，对至少两个在吸收由信息的组合表示图像数据A和信息的鉴别包括 相位对比表示代表图像数据C.在相干包括图像数据D和信息

    DETECTION VALUES PROCESSING APPARATUS
    4.
    发明公开
    DETECTION VALUES PROCESSING APPARATUS 审中-公开
    设备用于处理检测值

    公开(公告)号：EP2671069A1

    公开(公告)日：2013-12-11

    申请号：EP12703349.6

    申请日：2012-01-25

    申请人： Koninklijke Philips N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： PROKSA, Roland ,  MARTENS, Gerhard

    IPC分类号： G01N23/04 ,  G01N23/087 ,  A61B6/03

    摘要： The invention relates to a detection values processing apparatus. Energy-dependent detection values are provided, which are indicative of polychromatic radiation (4) after having traversed an examination zone (5). The radiation is filtered by a filter (15) which comprises K-edge filter material. A component decomposition technique is applied to the detection values for determining K-edge attenuation values being first component attenuation values, which are indicative of an attenuation caused by the K-edge filter material, and additional component attenuation values, which are indicative of an attenuation caused by additional components of the examination zone, wherein an image of the examination zone is reconstructed from the additional component attenuation values. An image can therefore be reconstructed, which is not adversely affected by the filter, because the K-edge attenuation values are not used for reconstructing the image. This can improve the quality of the reconstructed image.

    METHOD AND DEVICE FOR ANALYSING A REGION OF INTEREST IN AN OBJECT USING X-RAYS
    5.
    发明授权
    METHOD AND DEVICE FOR ANALYSING A REGION OF INTEREST IN AN OBJECT USING X-RAYS 有权
    利用X射线分析对象中的感兴趣区域的方法和装置

    公开(公告)号：EP2652487B1

    公开(公告)日：2018-02-21

    申请号：EP11805207.5

    申请日：2011-12-05

    申请人： Koninklijke Philips N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： CARLSEN, Ingwer-Curt ,  KOEHLER, Thomas ,  MARTENS, Gerhard ,  RÖSSL, Ewald ,  WIEMKER, Rafael

    IPC分类号： G01N23/04 ,  G01N23/20

    CPC分类号： G06T7/0012 ,  G01N23/046 ,  G01N2223/419

    摘要： A method and a device for analyzing a region of interest in an object is proposed. The method comprises: (a) providing measurement data by a differential phase contrast X-ray imaging system, and (b) analyzing characteristics of the object in the region of interest. Therein, the measurement data comprise a 2-dimensional or 3-dimensional set of pixels wherein for each pixel the measurement data comprises three types of image data spatially aligned with each other, including (i) absorption representing image data A, (ii) differential phase contrast representing image data D, and (iii) coherence representing image data C. The analyzing step is based, for each pixel, on a combination of at least two of information comprised in the absorption representing image data A and information comprised in the differential phase contrast representing image data D and information comprised in the coherence representing image data C.