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    • 49. 发明公开
    • APPARATUS FOR PHASE-CONTRAST IMAGING COMPRISING A DISPLACEABLE X-RAY DETECTOR ELEMENT AND METHOD
    • 设备技术采用了侧滑射线探测器元件和方法相衬成像
    • EP2509503A1
    • 2012-10-17
    • EP10807374.3
    • 2010-12-03
    • Koninklijke Philips Electronics N.V.Philips Intellectual Property & Standards GmbH
    • ROESSL, EwaldENGEL, Klaus J.VOGTMEIER, GereonGELLER, DieterMARTENS, GerhardKOEHLER, ThomasSCHUSSER, Sebastian, Siegmund
    • A61B6/00G01N23/04
    • A61B6/00A61B6/032A61B6/4021A61B6/4092A61B6/4291A61B6/484
    • 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.
    • 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.