首页> 外国专利> The training system of X-ray images for the training images of differential phase contrast.Method of handling of misalignment in a training system of X-ray images for the training images of differential phase contrast.The element of the computer program to control an apparatus and medium readable by computer.

The training system of X-ray images for the training images of differential phase contrast.Method of handling of misalignment in a training system of X-ray images for the training images of differential phase contrast.The element of the computer program to control an apparatus and medium readable by computer.

机译：X射线图像训练系统，用于差分相位对比训练图像。X射线图像训练系统中的对准误差用于差分相位训练图像的处理方法。控制设备的计算机程序元素和计算机可读的介质。

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摘要

An X-ray imaging method includes acquiring a differential phase contrast imaging X-ray scan with an X-ray imaging system having an X-ray source, an X-ray detector, and a grating arrangement having a source grating, a phase grating and an analyzer grating. The source grating is misaligned in respect to an interferometer such that moiré fringes are detectable in the plane of the detector. A translation signal is computed for translating the source grating for achieving a predetermined moiré pattern. The positioning of the source grating is adjusted in an X-ray projection direction based on the translation signal such that at least 2 pi of phase changes are covered with the Moiré fringes over the width of the detector. And a further differential phase contrast imaging X-ray scan is acquired.

机译：X射线成像方法包括利用具有X射线源的X射线成像系统，X射线检测器以及具有源光栅，相位光栅和光栅的光栅装置来获取差分相衬成像X射线扫描。分析光栅。源光栅相对于干涉仪未对准，从而在检测器的平面中可检测到莫尔条纹。计算平移信号以平移源光栅以获得预定的莫尔图案。根据平移信号在X射线投影方向上调整源光栅的位置，以便在探测器的整个宽度上至少有2 pi的相位变化被莫尔条纹覆盖。并且获得了进一步的差分相衬成像X射线扫描。

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公开/公告号BR112015003425A2

专利类型
公开/公告日2017-07-04

原文格式PDF
申请/专利权人 KONINKLIJKE PHILIPS N.V.;
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申请/专利号BR20151103425
发明设计人 EWALD ROESSL;GERHARD MARTENS;HEINER DAERR;THOMAS DETLEF ISTEL;UDO VAN STEVENDAAL;
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申请日2013-08-20
分类号A61B6;G01N23/20;
国家 BR
入库时间 2022-08-21 13:40:17

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