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1. 发明授权

EP3326008B1 X-RAY DETECTOR FOR PHASE CONTRAST AND/OR DARK-FIELD IMAGING 失效
公开(公告)号：EP3326008B1
公开(公告)日：2018-11-28
申请号：EP16741021.6
申请日：2016-07-20
申请人： Koninklijke Philips N.V.
发明人： PROKSA, Roland
IPC分类号： G01T1/20 , A61B6/00
CPC分类号： G21K1/067 , A61B6/4225 , A61B6/4233 , A61B6/4291 , A61B6/484 , G01N23/041 , G01T1/2018 , G01T7/00 , G21K2207/005
摘要： The present invention relates to X-ray imaging. In order to reduce X-ray dose exposure during X-ray image acquisition, an X-ray detector is provided that is suitable for phase contrast and/or dark-field imaging. The X-ray detector comprises a scintillator layer (12) and a photodiode layer (14). The scintillator layer is configured to convert incident X- ray radiation (16) modulated by a phase grating structure (18) into light to be detected by the photodiode layer. The scintillator layer comprises an array of scintillator channels (20) periodically arranged with a pitch (22) forming an analyzer grating structure. The scintillator layer and the photodiode layer form a first detector layer (24) comprising a matrix of pixels (26). Each pixel comprises an array of photodiodes (28), each photodiode forming a sub-pixel (30). Adjacent sub-pixels during operation receive signals having mutually shifted phases. The sub-pixels that during operation receive signals having mutually identical phase form a phase group per pixel. The signals received by the sub-pixels within the same phase group per pixel during operation are combined to provide one phase group signal (32). The phase group signals of different phase groups during operation are obtained in one image acquisition. In an example, the pitch of the scintillator channels is detuned by applying a correcting factor c to a fringe period (Pfringe) of a periodic interference pattern (35) created by the phase grating structure, wherein 0

2. 发明公开

EP1870770A1 Remote triggered X-ray image capture device 有权
标题翻译：弗朗索尔森（RöntgenbilderfassungsvorrichtungmitFernauslösung）
公开(公告)号：EP1870770A1
公开(公告)日：2007-12-26
申请号：EP07011816.1
申请日：2007-06-15
申请人： Merlin Digital Technology LLC
发明人： Campbell, Wiiliam E.
IPC分类号： G03B42/02 , A61B6/00
CPC分类号： G03B42/02 , A61B6/4216 , A61B6/4225 , A61B6/508 , G01T1/2018 , H04N5/2254 , H04N5/2353 , H04N5/32
摘要： Systems and methods are presented herein for generating an X-ray image where the X-ray image generator has no electrical connection with an X-ray source which generates the X-rays. In an exemplary embodiment a photon sensor is positioned behind an x-ray permeable mirror. When the photon sensor senses photons, a camera, positioned outside of the X-ray path, captures a picture containing the X-ray data. A second mirror is positioned such that the path of the X-ray image is folded such that the camera can be positioned outside of the X-ray path, but that the X-ray image still strikes the camera lens. The X-ray data is then sent to a computer for processing. Parameterization is applied to the X-ray data based upon at least one of the species of the animal being taken, the body part depicted in the X-ray, the view depicted and the amount of energy used by an X-ray generator to take the X-ray.
摘要翻译：这里呈现了用于产生X射线图像的系统和方法，其中X射线图像发生器与产生X射线的X射线源没有电连接。在示例性实施例中，光子传感器位于x射线透过镜后面。当光子传感器感测光子时，定位在X射线路径外部的照相机捕获包含X射线数据的照片。第二镜被定位成使得X射线图像的路径被折叠，使得照相机可以位于X射线路径外部，但是X射线图像仍然撞击相机镜头。然后将X射线数据发送到计算机进行处理。基于被拍摄的动物的种类，X射线中描绘的身体部分，所示的视图和由X射线发生器采取的能量的量中的至少一个，对X射线数据进行参数化 X光片。

3. 发明授权

EP0857009B1 Röntgeneinrichtung mit einer Primärblendenanordnung 失效
标题翻译：具有伯光阑装置X射线装置
公开(公告)号：EP0857009B1
公开(公告)日：2006-11-08
申请号：EP98200132.3
申请日：1998-01-20
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： Brendler, Joachim, c/o Philips Patentverwaltung , Allmendinger, Horst, c/o Philips Patentverwaltung
IPC分类号： H05G1/36 , H05G1/44
CPC分类号： A61B6/4225 , A61B6/06 , A61B6/542 , H04N5/32 , H05G1/30

4. 发明公开

EP1646984A2 AN IMAGING SYSTEM, AN X-RAY IMAGING APPARATUS, A METHOD AND A COMPUTER PROGRAM ARRANGED FOR REDUCING AN ARTIFACT IN A THREE-DIMENSIONAL RECONSTRUCTED VOLUME 审中-公开
标题翻译：图象系统中的X射线图像装置，方法和计算机程序来降低神器重建的三维体积
公开(公告)号：EP1646984A2
公开(公告)日：2006-04-19
申请号：EP04744503.6
申请日：2004-07-06
申请人： Koninklijke Philips Electronics N.V.
发明人： VAN DE HAAR, Peter, G. , TIMMER, Jan
IPC分类号： G06T11/00
CPC分类号： A61B6/4225 , A61B6/583 , A61B6/585 , G06T5/009 , G06T5/50 , G06T2200/04 , G06T2207/10116
摘要： The invention relates to an imaging system (15) comprising artifact reduction means (20) arranged to correct for a ring-shaped artifact in the three-dimensional reconstructed volume. The artifact reduction means (20) comprises a first stage correction means (21) arranged to eliminate the structured noise of the output screen of the image intensifier of an X-ray imaging apparatus (10) using a first corrective image. Preferably, the first corrective image (21a) is pre-calculated and is stored in a suitable memory unit of a computer (not shown). A raw image of the patient is first processed with the first corrective image (21a). The thus obtained gain-corrected image is forwarded to an image deformation correction means (23), where a suitable unwarping function (23a) is being pre-stored. The resulting gain-corrected unwarped images are then made available to the second stage gain correction means (25), where a second corrective image (25a) is applied to the images resulting in a final set of images with a substantially reduced ring-shaped artifact. The final set of images is made available to the image reconstruction means (26) arranged for further processing of the final set of images, the result thereof being visualized on a computer monitor (30) for inspection purposes. The invention further relates to an X-ray imaging apparatus, a method for reducing an artifact in a three-dimensional reconstructed volume and a computer program.

5. 发明公开

EP1419484A2 X-RAY EXAMINATION APPARATUS FOR RECONSTRUCTING A THREE-DIMENSIONAL DATA SET FROM PROJECTION IMAGES 审中-公开
标题翻译： X射线检查装置为重建的投影图像A 3-D数据组的
公开(公告)号：EP1419484A2
公开(公告)日：2004-05-19
申请号：EP02751554.3
申请日：2002-07-25
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： OP DE BEEK, Johannes, C., A. , KOPPE, Reiner , KLOTZ, Erhard, P., A.
IPC分类号： G06T11/00
CPC分类号： A61B6/583 , A61B6/4225 , A61B6/466 , Y10S378/901
摘要： An X-ray examination apparatus includes an X-ray source and an X-ray detector and is arranged to provide a series of projection images at respective orientations of the X-ray source (1) and the X-ray detector (2) relative to a predetermined frame of reference. The orientations of the projection images are calibrated relative to this frame of reference. A basic three-dimensional data set (23) is reconstructed from the projection images. A number of directions of observations (121-123) are calibrated relative to the same frame of reference. One or more additional X-ray images (11-113) are formed for the calibrated directions of observation, that is, preferably at successive instants in time. A dynamic series of three-dimensional data sets is formed by updating the basic three-dimensional data set by means of the additional X-ray images.

6. 发明公开

EP1052937A1 RÖNTGENUNTERSUCHUNGSGERÄT UND VERFAHREN ZUR ERZEUGUNG VERZERRUNGSFREIER RÖNTGENBILDER 有权
标题翻译： X射线检查装置和一种用于生成无失真的X射线图像
公开(公告)号：EP1052937A1
公开(公告)日：2000-11-22
申请号：EP99963377.9
申请日：1999-12-03
申请人： Koninklijke Philips Electronics N.V. , Philips Corporate Intellectual Property GmbH
发明人： ZYLKA, Waldermar , SABCZYNSKI, Jörg , WEESE, Jürgen
IPC分类号： A61B6/00 , G06T5/00
CPC分类号： A61B6/583 , A61B6/4225 , A61B6/4441 , A61B6/547 , G01N23/04
摘要： The invention relates to an X-ray examination apparatus and a method for generating distortion-free X-ray images which make it possible to determine the imaging characteristics of the C curved X-ray device from the patient radiogram. To this end, a reference image (figure 4) is recorded in a reference orientation of the X-ray examination apparatus, and the reference imaging characteristics of the C curved X-ray device are determined using the positions of calibration bodies (7, 8) which are arranged and mapped on the image intensifier (2) and/or X-ray emitter (3), and using the known geometry and position in relation to the image intensifier (2) and/or X-ray emitter (3). In addition, the positions of the calibration bodies (7, 8) which are mapped in a patient radiogram (figure 5) are compared with the positions of the calibration bodies (7, 8) in the reference image (figure 4), and distortions appearing in the patient radiogram are corrected by using the discrepancies or differences between the mapped positions of the calibration bodies (7, 8) in the patient radiogram (figure 5) and in the reference image (figure 4).

7. 发明授权

EP0554800B1 X-ray radiographic apparatus 失效
标题翻译： X光机
公开(公告)号：EP0554800B1
公开(公告)日：1996-05-29
申请号：EP93101371.8
申请日：1993-01-29
申请人： SHIMADZU CORPORATION
发明人： Shimizu, Yasumitsu
IPC分类号： A61B6/02 , A61B6/00 , G03B42/02
CPC分类号： A61B6/4225 , G03B42/02 , H04N5/32

8. 发明公开

EP0554800A1 X-ray radiographic apparatus 失效
标题翻译： Röntgengerät。
公开(公告)号：EP0554800A1
公开(公告)日：1993-08-11
申请号：EP93101371.8
申请日：1993-01-29
申请人： SHIMADZU CORPORATION
发明人： Shimizu, Yasumitsu
IPC分类号： A61B6/02 , A61B6/00 , G03B42/02
CPC分类号： A61B6/4225 , G03B42/02 , H04N5/32
摘要： An X-ray radiographic apparatus has an electronic shutter circuit operable at a photographing time to vary time for storing electric charges in a CCD image pickup device. This avoids saturation of the CCD image pickup device due to an increased quantity of X-rays. Further, an image outputted from the CCD image pickup device is latched at the photographing time for improved durability and responsibility. A photographed image may be observed on a monitor unit also after photo taking.
摘要翻译： X射线摄影装置具有可在拍摄时间操作的电子快门电路，以改变用于在CCD图像拾取装置中存储电荷的时间。这避免了由于X射线量的增加而导致的CCD摄像装置的饱和。此外，从CCD图像拾取装置输出的图像在拍摄时被锁存，以提高耐久性和责任性。摄影后也可以在监视器上观察拍摄的图像。

9. 发明公开

EP0301356A1 Lichtverteiler für eine Röntgendiagnostikeinrichtung 失效
标题翻译： LichtverteilerfüreineRöntgendiagnostikeinrichtung。
公开(公告)号：EP0301356A1
公开(公告)日：1989-02-01
申请号：EP88111537.2
申请日：1988-07-18
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Weiss, Karl , Gall, Arthur, Dipl.-Ing.
IPC分类号： H05G1/64 , H05G1/02 , G03B42/02
CPC分类号： A61B6/4225 , G03B42/023 , H05G1/08 , H05G1/64
摘要： Die Erfindung betrifft einen Lichtverteiler (5) für eine Röntgendiagnostikeinrichtung mit einem Gehäuse (13), beweglichen Spiegeln (20) zur wahlweisen Ablenkung des Strahlenganges des Ausgangsbildes eines Röntgenbildverstärkers auf mehrere an dem Gehäuse (13) des Lichtverteilers (5) befestigte Komponenten. Die Achsen des Strahlenganges der Aufnahmekomponenten stehen senkrecht aufeinander und jeweils senkrecht auf der Achse des Strahlenganges des Röntgenbildverstärkers (4), so daß ein erster Spiegel (14) den Strahlengang des Röntgenbildverstärkers auf eine erste Aufnahmekomponente lenkt und ein zweiter beweglicher Spiegel (20) in den Strahlengang zwischen erstem Spiegel (14) und erster Aufnahmekomponente einfahrbar ist, der den Strahlengang auf eine zweite Aufnahmekomponente ablenkt.
摘要翻译：本发明涉及一种用于X射线诊断装置的光分布器（5），其具有壳体（13）和移动镜（20），用于可选地偏转X射线图像放大器的输出图像的光束路径安装在光分配器（5）的壳体（13）上的多个部件上。记录部件的光束路径的轴线彼此成直角，并且在每种情况下垂直于X射线图像放大器（4）的光束路径的轴线，使得第一反射镜（14）偏转 X射线图像放大器到第一记录部件的光束路径和第二移动镜（20）可以移动到第一反射镜（14）和第一记录部件之间的光束路径中，以将光束路径偏转到第二记录组件。 ... ...

10. 发明公开

EP0284733A1 Röntgenfernsehanlage zur Durchleuchtung eines Untersuchungsobjektes 失效
标题翻译： X射线电视系统下检查筛选的对象。
公开(公告)号：EP0284733A1
公开(公告)日：1988-10-05
申请号：EP88101639.8
申请日：1988-02-04
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Hunold, Michael
IPC分类号： A61B6/06
CPC分类号： A61B6/06 , A61B6/4225
摘要： Die Erfindung betrifft eine Röntgenfernsehanlage zur Durchleuchtung eines Untersuchungsobjektes (1) mit einer Röntgenröhre (2), einer Primärstrahlenblende (3), einem Röntgenbildverstärker (5), einer Fernsehkamera (7) und einem Sichtgerät (13), wobei zwischen der Fernsehkamera (7) und dem Sichtgerät (13) ein Bildspeicher (8) und eine Bildverarbeitungseinrichtung (12) vorgesehen sind. Auf dem Sichtgerät (13) ist wahlweise ein von der Fernsehkamera (7) unmittelbar aufgenommenes oder ein in dem Bildspeicher (8) gespeichertes Durchleuchtungsbild darstellbar. Die Primärstrahlenblende (3) zur Einblendung eines von der Röntgenröhre (2) ausgehenden Röntgenstrahlenbündels weist verstellbare Blendenplatten (4a, 4b, 4c, 4d) auf. Jeder Blendenplatte (4a, 4b, 4c, 4d) ist ein Weggeber (19a, 19b, 19c, 19d) zugeordnet, der ein der Stellung der Blendenplatte (4a, 4b, 4c, 4d) relativ zu dem Zentralstrahl (Z) des Röntgenstrahlenbündels entsprechendes Signal an die Bildverarbeitungseinrichtung (12) gibt, die bei der Darstellung eines in dem Bildspeicher (8) gespeicherten Durchleuchtungsbildes eine der Stellung der jeweiligen Blendenplatte (4a, 4b, 4c, 4d) entsprechende Marke (20a, 20b, 20c, 20d) in das Durchleuchtungsbild einblendet.
摘要翻译：本发明涉及的X射线电视安装的对象的透视待检查（1），其具有的X射线管（2），一个初级辐射隔膜（3）中，X射线图像增强器（5），一个电视摄像机（7）和一个显示装置（13），由此，电视摄像机（7）之间和设置在显示装置（13）的图像存储器（8）和图像处理装置（12）。在显示装置（13）是任选的从电视摄像机（7）被直接记录或在图像存储器（8）中存储的透视图像显示。用于插入所述X射线管（2）出射的X射线束中的一个初级辐射隔膜（3）具有在可调节光阑板（4A，4B，4C，4D）。各膜片板（4A，4B，4C，4D）是对应的位移传感器与所述隔膜板的位置的所述一个（4A，4B，4C，4D）相关联的（19A，19B，19C，19D）相对于所述X射线束的中央射线（Z）发射信号到图像处理装置（12），存储在一个在图像存储器（8）对应的各膜片板（4A，4B，4C，4D）标记的位置（20A，20B，20C，20D）演示文稿中的透视图像透视图像变淡。

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