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    X-ray system, in particular a tomosynthesis system and a method for acquiring an image of an object
    11.
    发明授权
    X-ray system, in particular a tomosynthesis system and a method for acquiring an image of an object 有权

    公开(公告)号：US10045749B2

    公开(公告)日：2018-08-14

    申请号：US15028041

    申请日：2014-10-13

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Michael Grass ,  Klaus Erhard ,  Ewald Roessl

    IPC: A61B6/04 ,  A61B6/00 ,  A61B6/02 ,  G01T1/24 ,  A61B6/06

    Abstract: An X-ray system (2) for acquiring an image of an object has an X-ray detector (8), which is segmented into a plurality of neighboring detector tiles. In particular, the image can be a two-dimensional projection image but also a three-dimensional volume of the object reconstructed from a tomosynthesis acquisition. An X-ray detector moving mechanism (18) is adapted for moving the X-ray detector (8) at least between a first X-ray detector position and a second X-ray detector position during operation of the X-ray system. An X-ray source (4), a collimator (22) and the X-ray detector (8) of the X-ray system (2) are adapted for acquiring a plurality of partial X-ray images through the adjacent detector tiles while irradiating the object with X-ray beams from a plurality of tomographic angles α. The processing unit is adapted for generating a two-dimension image of the object and/or for reconstructing a three-dimensional volume of the object from the acquired partial images.

    Cardiac reconstruction for photon counting CT for heart and lung images
    12.
    发明授权
    Cardiac reconstruction for photon counting CT for heart and lung images 有权

    公开(公告)号：US09775580B2

    公开(公告)日：2017-10-03

    申请号：US15519176

    申请日：2015-10-12

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Roland Proksa ,  Thomas Koehler ,  Michael Grass

    IPC: A61B6/03 ,  A61B6/00

    CPC classification number: A61B6/5205 ,  A61B6/032 ,  A61B6/405 ,  A61B6/4241 ,  A61B6/50 ,  A61B6/503 ,  A61B6/5258 ,  A61B6/5288 ,  A61B6/541

    Abstract: A method includes modulating a flux of emission radiation between a first lower flux level and a second higher flux level in coordination with a cardiac cycle signal so that the flux is at the first lower flux level during a first cardiac motion phase having a first higher cardiac motion and is at the second higher flux level during a second cardiac motion phase having a second lower cardiac motion. The method further includes reconstructing the projection data with a first reconstruction window, which applies a first higher weight to a first sub-set of the projection data that corresponds to the first cardiac motion phase and the lower first flux level and a second lower weight to a second sub-set of the projection data that corresponds to the second cardiac motion phase and the higher second flux level, to generate first volumetric image data.

    X-RAY IMAGING SYSTEM FOR A CATHETER
    15.
    发明申请
    X-RAY IMAGING SYSTEM FOR A CATHETER 审中-公开
    用于导管的X射线成像系统

    公开(公告)号：US20150250983A1

    公开(公告)日：2015-09-10

    申请号：US14432228

    申请日：2013-10-02

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Daniel Simon Anna Ruijters ,  Sander Hans Denissen ,  Michael Grass ,  Erik Martinus Hubertus Petrus Van Dijk ,  Dirk Dijkkamp ,  Maikel Hendriks ,  Erik Rene Kieft ,  Marco Verstege

    IPC: A61M25/01

    CPC classification number: A61M25/0116 ,  A61B6/12 ,  A61B34/30 ,  A61B90/37 ,  A61B2034/301 ,  A61B2090/376 ,  A61B2090/3966 ,  A61M25/0108 ,  A61M25/0147

    Abstract: The invention addresses the problem of correctly positioning a catheter and reducing radiation doses. It relates to an X-ray imaging system (1) for a robotic catheter, comprising said catheter (3), and a processing unit (5) for receiving X-ray images of a patient environment (15). By being adapted to receive one or more auxiliary information items and using said information for determining the catheter position, the processing unit does not entirely have to rely on a large number of scanned image data, thus helping to reduce radiation while correctly delivering the catheter position as a function of as few as a single image, preferably 2D, and said one auxiliary information items. Further, said processing unit allows for at least one of rendering an image and provide said image to a visualization device (21), and providing feedback, e.g. steering commands, to said robotic catheter.

    Abstract translation: 本发明解决了正确定位导管并减少辐射剂量的问题。 本发明涉及一种用于机器人导管的X射线成像系统（1），包括所述导管（3）和用于接收患者环境（15）的X射线图像的处理单元（5）。 通过适于接收一个或多个辅助信息项并且使用所述信息来确定导管位置，处理单元不完全必须依赖大量的扫描图像数据，从而有助于在正确地传送导管位置的同时减少辐射 作为少至单个图像，优选2D的函数，以及所述一个辅助信息项。 此外，所述处理单元允许渲染图像中的至少一个并将图像提供给可视化设备（21），并且提供反馈，例如， 转向指令，到所述机器人导管。

    DETERMINATION OF A FRACTIONAL FLOW RESERVE (FFR) VALUE FOR A STENOSIS OF A VESSEL
    16.
    发明申请
    DETERMINATION OF A FRACTIONAL FLOW RESERVE (FFR) VALUE FOR A STENOSIS OF A VESSEL 审中-公开
    确定流体流动的流动储备（FFR）价值

    公开(公告)号：US20150092999A1

    公开(公告)日：2015-04-02

    申请号：US14396407

    申请日：2013-05-10

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Holger Schmitt ,  Peter Forthmann ,  Michael Grass

    IPC: G06T7/00

    CPC classification number: G06T7/0014 ,  A61B5/02007 ,  A61B5/742 ,  A61B6/032 ,  A61B6/504 ,  A61B6/5217 ,  G01N2800/323 ,  G06T2207/10088 ,  G06T2207/10116 ,  G06T2207/30104

    Abstract: A method includes determining at least one characteristic about a stenosis in a vessel of a patient from image data of the stenosis, mapping the characteristic to a predefined stenosis characteristic to fractional flow reserve value look up table, identifying the fractional flow reserve value in the look up table corresponding to the characteristic, and visually presenting the image data and the identified fractional flow reserve value. A system includes memory storing a pre-defined stenosis characteristic to fractional flow reserve value look up table, a metric determiner (118) that maps at least one characteristic about a stenosis in a vessel of a patient, which is determined from image data of the stenosis, to a characteristic in the look up table and identifies a fractional flow reserve value corresponding to the characteristic, and a display (116) that visually presents the image data and the identified fractional flow reserve value.

    Abstract translation: 一种方法包括从狭窄图像数据确定患者血管中的狭窄的至少一个特性，将特征映射到预定义的狭窄特征到分数流量储备值查找表，识别外观中的分数流量储备值 对应于特征，并且可视地呈现图像数据和识别的分数流量储备值。 一种系统包括存储分数流量储备值查找表中预定义的狭窄特征的存储器，一个度量确定器（118），其将关于病人容器中的狭窄的至少一个特性映射到患者的血管中， 狭窄，到查找表中的特征，并且识别对应于该特征的分数流量保留值，以及可视地呈现图像数据和识别的分数流量储备值的显示器（116）。

    SYSTEM FOR PLANNING RADIATION TREATMENT THERAPY
    17.
    发明申请
    SYSTEM FOR PLANNING RADIATION TREATMENT THERAPY 审中-公开
    辐射治疗治疗系统

    公开(公告)号：US20150018596A1

    公开(公告)日：2015-01-15

    申请号：US14383122

    申请日：2013-02-26

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Heinrich Schulz ,  Michael Grass ,  Joerg Sabczynski ,  Torbjorn Vik

    IPC: A61N5/10 ,  A61B5/06

    CPC classification number: A61N5/1031 ,  A61B5/061 ,  A61B2034/2061 ,  A61N5/1037 ,  A61N5/1067 ,  A61N5/1077 ,  A61N2005/1051 ,  A61N2005/1072 ,  G01T1/164 ,  G02B6/0003

    Abstract: A system for planning radiation treatment therapy is provided. An optical sensor device is implanted within or in close proximity to a risk region within the patient during a radiation delivery. The sensor device optically monitors the orientation of the risk region, and the radiation dosage received by the risk region, during the radiation delivery. That information may be used as appropriate to modify an on-going radiation delivery plan in real time while the plan is being implemented.

    Abstract translation: 提供了一种计划放射治疗治疗的系统。 在辐射递送期间，将光学传感器装置植入在病人内部或附近的危险区域内。 传感器设备在辐射传送期间光学地监测风险区域的方位以及由风险区域接收的辐射剂量。 在执行计划时，可以适当地使用该信息来实时修改正在进行的辐射传播计划。

    C-ARM SYSTEM WITH EXTENDED FIELD OF VIEW
    18.
    发明申请
    C-ARM SYSTEM WITH EXTENDED FIELD OF VIEW 有权
    具有扩展视野的C-ARM系统

    公开(公告)号：US20140321612A1

    公开(公告)日：2014-10-30

    申请号：US14356899

    申请日：2012-11-09

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Dirk Schäfer ,  Michael Grass

    IPC: A61B6/02

    CPC classification number: A61B6/022 ,  A61B6/032 ,  A61B6/4441

    Abstract: The present invention relates to a C-arm X-ray imaging system. In order to provide C-arm systems with an extended three-dimensional field of view, a C-arm X-ray imaging system (10), provided to acquire extended three-dimensional images of an object, is provided, comprising a C-arm structure (12) with an X-ray source (14) and an X-ray detector (16) mounted across from the X-ray source, a motorized drive (22) for a rotational movement of the C-arm structure, and a control unit (26). The C-arm structure is provided to perform a rotational scan around an axis of rotation and around an ISO-centre acquiring a number of X- ray projections in order to generate image data for a reconstructed three-dimensional field of view. The control unit is configured to control the motorized drive, and to cause the rotational movement of the C-arm structure to perform a first rotational X-ray scan (50) around a first ISO-centre (56) with a first axis of rotation for a first field of view, and to perform at least a second rotational X-ray scan (60) around a second ISO-centre (62) with a second axis of rotation for a second field of view. The first and the second centre of rotation are displaced in relation to each other such that a connection line between the first and the second ISO-centre is arranged transverse to the first and the second axis of rotation.

    Abstract translation: 本发明涉及C臂X射线成像系统。 为了向C臂系统提供扩展的三维视场，提供了提供用于获取对象的扩展三维图像的C臂X射线成像系统（10），包括C- 具有安装在X射线源的X射线源（14）和X射线检测器（16）的臂结构（12），用于C臂结构的旋转运动的电动驱动器（22），以及 控制单元（26）。 提供C形臂结构以围绕旋转轴线和围绕获取多个X射线投影的ISO中心执行旋转扫描，以便生成用于重构的三维视场的图像数据。 所述控制单元被配置为控制所述电动驱动器，并且使所述C形臂结构的旋转运动执行围绕具有第一旋转轴线的第一ISO中心（56）的第一旋转X射线扫描（50） 并且为了第二视野，以具有第二旋转轴线的方式执行围绕第二ISO中心（62）的至少第二旋转X射线扫描（60）。 第一和第二旋转中心相对于彼此移位，使得第一和第二ISO中心之间的连接线横向于第一和第二旋转轴线布置。

    Multi-spectral x-ray imaging using conventional equipment
    19.
    发明授权
    Multi-spectral x-ray imaging using conventional equipment 有权

    公开(公告)号：US12016711B2

    公开(公告)日：2024-06-25

    申请号：US17637954

    申请日：2020-08-21

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： André Goossen ,  Michael Grass

    IPC: A61B6/40 ,  A61B6/00 ,  A61B6/04

    CPC classification number: A61B6/405 ,  A61B6/0487 ,  A61B6/4452 ,  A61B6/5264

    Abstract: An X-ray imaging apparatus (XI) including an X-ray source (XS) with a cathode (C) and an anode (A). The source (XS) is to generate an X-radiation beam (XB). An X-ray detector (XD) detects the X-radiation after interaction with an imaged object (OB). The beam (XB) has different spectra on its anode side (AS) and cathode side (CS) caused by the heel effect when the X-ray source (XS) is in operation. -ray imaging apparatus (XI) has a heel-effect-harnessing (HH) mechanism configured to cause a pixel (PX) of the detector (XD) to be alternately exposed to both, the anode side (AS) and the cathode side (CS) of the beam (XB).

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