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    APPARATUS FOR PHASE-CONTRAST IMAGING COMPRISING A DISPLACEABLE X-RAY DETECTOR ELEMENT AND METHOD
    1.
    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.