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1. 发明公开

EP4454567A1 REDUCING AN X-RAY DOSE APPLIED ON A SUBJECT DURING A RESPIRATION-CORRELATED COMPUTED TOMOGRAPHY SCAN 审中-公开
公开(公告)号：EP4454567A1
公开(公告)日：2024-10-30
申请号：EP23195100.5
申请日：2023-09-04
申请人： Siemens Healthineers AG
发明人： Hofmann, Christian , Vornehm, Marc
IPC分类号： A61B6/03 , A61B6/00
CPC分类号： A61B6/032 , A61B6/486 , A61B6/541 , A61B6/405 , A61B6/542
摘要： A computer-implemented method for reducing an X-ray dose (12) applied on a subject (5) during a respiration-correlated computed tomography scan, the method comprising the following steps:
(a) during a beam-on period of the scan, determining the beginning of a data-redundant breathing phase;
(b) during the data-redundant breathing phase, applying a redundancy modulation to the applied X-ray dose such that the X-ray dose is reduced during the data-redundant breathing phase;
(c) determining the end of the data-redundant breathing phase;
(d) at the end of the data-redundant breathing phase, continuing the scan without the redundancy modulation of the X-ray dose.

2. 发明公开

EP4452074A1 SPECTRAL X-RAY CT IMAGING SYSTEM 失效
公开(公告)号：EP4452074A1
公开(公告)日：2024-10-30
申请号：EP22840115.4
申请日：2022-12-19
申请人： Koninklijke Philips N.V.
发明人： PROKSA, Roland , KOEHLER, Thomas , GRASS, Michael , WUELKER, Christian , WILD, Sebastian
IPC分类号： A61B6/02 , A61B6/00 , G01N23/087
CPC分类号： A61B6/4241 , A61B6/02 , A61B6/544 , G01N23/087 , A61B6/482 , A61B6/405 , A61B6/488

3. 发明公开

EP3375375A1 X-RAY DEVICE 审中-公开
公开(公告)号：EP3375375A1
公开(公告)日：2018-09-19
申请号：EP17161362.3
申请日：2017-03-16
申请人： Koninklijke Philips N.V.
发明人： PROKSA, Roland , GLEICH, Bernhard , NOEL, Peter Benjamin
IPC分类号： A61B6/03 , A61B6/00 , G21K1/10
CPC分类号： A61B6/032 , A61B6/4021 , A61B6/4035 , A61B6/405 , A61B6/482 , G21K1/10
摘要： The invention relates to an x-ray device for providing x-rays. The x-ray device 20 comprises an x-ray source 2 for generating x-rays and a grating device for absorbing at least a part of the x-rays, wherein the grating device 3 has lamellae comprising an x-ray absorbing material. At least one of the x-ray source 2 and the grating device 3 is adapted for modifying an angular orientation of the x-rays relative to the lamellae. By modifying the angular orientation of the x-rays relative to the lamellae, the ways, along which the x-rays traverse the lamellae, are modified, i.e. the absorption of the x-rays by the lamellae is modified. This modified absorption leads to a modified energy distribution of the x-rays such that by modifying the angular orientation of the x-rays relative to the lamellae different energy spectra of the x-rays can be realized in a technically relatively simple way.

4. 发明公开

EP3342259A1 X-RAY SOURCE 审中-公开
公开(公告)号：EP3342259A1
公开(公告)日：2018-07-04
申请号：EP16762745.4
申请日：2016-08-24
申请人： Koninklijke Philips N.V.
发明人： PROKSA, Roland , MILLER, Lester, Donald
IPC分类号： H05G1/20 , H05G1/08 , A61B6/03 , H05G1/50
CPC分类号： H05G1/20 , A61B6/032 , A61B6/4035 , A61B6/405 , H05G1/085 , H05G1/50
摘要： The invention relates to an X-ray source (2) for an imaging device comprising at least three electrodes; a power supply configured to provide a primary gap voltage between a first (13) and a second (12) electrode among said at least three electrodes, said primary gap voltage having an AC component, causing a transport of electrons from the first electrode toward the second electrode; and a controller configured to supply a variable potential on a third electrode (14) among said at least three electrodes, wherein the X-ray source is configured to generate an X-ray beam with an energy spectrum based on the voltage difference between the first electrode and the second electrode, and wherein the controller is configured to set the variable potential on the third electrode to a value causing at least a partial blocking of said transport of electrons, whenever a predetermined condition is met.

5. 发明公开

EP3282949A1 DUAL ENERGY X-RAY CORONARY CALCIUM GRADING 有权
标题翻译：双能X线冠状动脉钙化分级
公开(公告)号：EP3282949A1
公开(公告)日：2018-02-21
申请号：EP16718137.9
申请日：2016-04-12
申请人： Case Western Reserve University
发明人： WILSON, David , GILKESON, Robert , WEN, Di
IPC分类号： A61B6/00 , G06T7/00 , A61B6/03
CPC分类号： A61B6/482 , A61B5/0402 , A61B6/032 , A61B6/405 , A61B6/503 , A61B6/504 , A61B6/5217 , A61B6/5235 , A61B6/5258 , A61B6/5264 , A61B6/541 , G06T3/0068 , G06T5/009 , G06T5/20 , G06T5/50 , G06T7/0012 , G06T7/0014 , G06T7/11 , G06T7/13 , G06T2207/10081 , G06T2207/10116 , G06T2207/10152 , G06T2207/20076 , G06T2207/20081 , G06T2207/20208 , G06T2207/20224 , G06T2207/30008 , G06T2207/30048 , G06T2207/30101 , G06T2207/30204
摘要： Methods and apparatus for grading coronary calcium, including an example apparatus that includes a set of logics and a memory that stores a set of radiographic images. The set of logics includes an image acquisition logic that acquires a set of radiographic images of a region of tissue, the set of radiographic images including a low-energy reference x-ray image and a higher-energy floating x-ray image, a registration logic that produces a set of registered images from a plurality of members of the set of radiographic images, an enhancement logic that produces a set of calcium-enhanced images from the set of registered images, a post-enhancement logic that produces a bone image from the set of calcium-enhanced images, and a grading logic that computes a coronary heart disease prediction score based, at least in part, on the bone image and a set of features extracted from the bone image.

6. 发明公开

EP3213057A1 RADIOGRAPHIC IMAGING APPARATUS AND METHOD OF CONTROLLING THE SAME 审中-公开
标题翻译：射线照相成像设备及其控制方法
公开(公告)号：EP3213057A1
公开(公告)日：2017-09-06
申请号：EP15856070.6
申请日：2015-05-13
申请人： Samsung Electronics Co., Ltd.
发明人： LEE, Chang Lae , RIFU, Toshihiro , JUNG, Ji Young , YI, Jong Hyon
IPC分类号： G01N23/04 , A61B6/00 , A61B6/10
CPC分类号： A61B6/542 , A61B6/032 , A61B6/0407 , A61B6/0457 , A61B6/06 , A61B6/405 , A61B6/4291 , A61B6/545
摘要： A radiographic imaging apparatus includes a radiation irradiator configured to irradiate radiation to an object; a radiation detector configured to detect an intensity of the radiation passing through the object; and a loader configured to load the object, and at least one of a movement speed of the loader and a range of radiation irradiation of the radiation irradiator is changed according to a change in the intensity of the radiation, when the change in the intensity of the radiation is greater than or equal to a threshold value.
摘要翻译：一种放射线照相成像设备包括：放射线照射器，被配置为向对象照射放射线; 辐射检测器，被配置为检测通过所述物体的辐射的强度; 以及装载器，其被构造成装载所述物体，并且所述装载器的移动速度和所述辐射照射器的辐射照射的范围中的至少一个根据所述辐射强度的变化而改变，辐射大于或等于阈值。

7. 发明公开

EP3195804A1 X-RAY IMAGE FORMING DEVICE AND METHOD 有权
标题翻译： X射线成像装置和方法
公开(公告)号：EP3195804A1
公开(公告)日：2017-07-26
申请号：EP15842725.2
申请日：2015-09-18
申请人： Vatech Ewoo Holdings Co., Ltd. , Vatech Co., Ltd.
发明人： CHOI, Sung Il , BAE, Woong
IPC分类号： A61B6/14
CPC分类号： A61B6/14 , A61B6/032 , A61B6/405 , A61B6/4435 , A61B6/461 , A61B6/5205 , A61B6/5211 , G06T3/4038 , H05G1/02 , H05G1/60
摘要： An X-ray image forming device is disclosed. The disclosed device may comprise: an X-ray photographing unit including a rotation member which can rotate about a rotation shaft and straightly move, and an X-ray light source and an X-ray sensor mounted opposite to each other at both ends of the rotation member while a region of interest is placed therebetween; a penetration data acquisition unit for acquiring X-ray penetration data in various directions crossing and penetrating an image layer in the region of interest by controlling the X-ray photographing unit; and an image reconstruction unit for generating, from the X-ray penetration data, a predetermined angular range of projection data for each section of the image layer, and reconstructing a two-dimensional X-ray panoramic image for the image layer using the projection data.
摘要翻译：公开了一种X射线图像形成装置。所公开的装置可以包括：X射线摄影单元，其包括能够围绕旋转轴旋转并且可以直线移动的旋转构件;以及X射线光源和X射线传感器，其在所述X射线摄影单元的两端处彼此相对地安装同时将感兴趣区域放置在其间; 穿透数据获取单元，用于通过控制所述X射线照相单元来获取穿过并穿透所述感兴趣区域中的图像层的各个方向上的X射线穿透数据; 以及图像重建单元，用于从X射线穿透数据生成图像层的每个部分的投影数据的预定角度范围，并且使用投影数据重建针对图像层的二维X射线全景图像。

8. 发明公开

EP3134000A1 OPTIMAL ENERGY WEIGHTING OF DARK FIELD SIGNAL IN DIFFERENTIAL PHASE CONTRAST X-RAY IMAGING 有权
标题翻译：最佳能源电子元器件DUNKELFELDSIGNALS IN DIFFERENZIELLER PHASENKONTRAST-RÖNTGENBILDGEBUNG
公开(公告)号：EP3134000A1
公开(公告)日：2017-03-01
申请号：EP16722536.6
申请日：2016-04-25
申请人： Koninklijke Philips N.V.
发明人： KOEHLER, Thomas , ROESSL, Ewald , MARTENS, Gerhard , DAERR, Heiner
IPC分类号： A61B6/00 , G01N23/20 , A61B6/03
CPC分类号： A61B6/484 , A61B6/032 , A61B6/4035 , A61B6/405 , A61B6/4241 , A61B6/4291 , A61B6/482 , A61B6/5205 , G01N23/04
摘要： Apparatus and related method for dark-field imaging. The apparatus operates on projective intensities detected at a detector in different energy channels. An energy weighting is used to improve the signal to noise ratio. The model operates in a logarithmic domain.
摘要翻译：暗场成像装置及相关方法。该装置对在不同能量通道中的检测器处检测到的投射强度进行操作。使用能量加权来提高信噪比。该模型在对数域中运行。

9. 发明公开

EP3079593A1 SCANNING X-RAY IMAGING DEVICE WITH VARIABLE SHIELD PLATES AND METHOD FOR OPERATING SAME 有权
标题翻译：具有可变屏蔽板和方法及其操作RÖNTGENABTAST-及摄像装置
公开(公告)号：EP3079593A1
公开(公告)日：2016-10-19
申请号：EP14808955.0
申请日：2014-12-04
申请人： Koninklijke Philips N.V.
发明人： MYRMAN, Per Mattias
IPC分类号： A61B6/06 , G21K1/04
CPC分类号： A61B6/06 , A61B6/4035 , A61B6/405 , A61B6/4266 , A61B6/502 , G21K1/043
摘要： A scanning X-ray imaging device (100) is proposed. The device may be specifically adapted for mammography applications. The device comprises an X-ray source (110), an X-ray line detector (150), a field limiter arrangement (170) and an observation volume (135). The field limiter arrangement (170) comprises at least two variable shield plates (174, 175) enclosing an opening (176) and a displacing mechanism (177). The shield plates may be displaced with respect to a centre axis of an X-ray beam (115) by means of the displacing mechanism such as to vary at least one of a cross-section and a location of the opening (176) between the field plates (174, 175) through which at least a part of the X-ray beam (115) is transmitted. The shield plates may be displaced independently from each other by means of the displacing mechanism (177). Such device (100) may be operated to perform a scanning motion such as to scan at least portions of the X-ray beam through a region of interest within the observation volume (135) and, at the same time, control the displacing mechanism (177) such that the opening (176) between the field plates (174, 175) is first successively opened to a larger cross-section and then successively closed again to a smaller cross-section during the scanning motion. Thereby, an X-ray dose level and an X-ray exposure time may be kept constant throughout an image acquisition procedure and an overall dose level may be minimized.

10. 发明授权

EP2873370B1 X-ray imaging apparatus and method of controlling the same 有权
标题翻译： Röntgenstrahlabbildungsvorrichtungund Verfahren zur Steuerung davon
公开(公告)号：EP2873370B1
公开(公告)日：2016-10-19
申请号：EP14191242.8
申请日：2014-10-31
申请人： Samsung Electronics Co., Ltd
发明人： Hyung, Seung Yong , Kim, Ji Yeun , Roh, Kyung Shik , Lee, Jong Won , Lee, Ju Suk , Hwang, Won Jun , Hwang, Hyo Seok
IPC分类号： A61B6/06 , A61B6/12 , A61B6/00 , G06K9/52
CPC分类号： A61B6/469 , A61B6/06 , A61B6/12 , A61B6/405 , A61B6/4441 , A61B6/481 , A61B6/482 , A61B6/486 , A61B6/487 , A61B6/503 , A61B6/504 , A61B6/5211 , A61B6/542 , A61B6/547 , A61B2034/2046 , A61B2090/376

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