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1. 发明授权

EP3622892B1 PHOTON COUNTING-TYPE RADIATION DETECTOR AND RADIOLOGICAL INSPECTION DEVICE USING SAME 有权
公开(公告)号：EP3622892B1
公开(公告)日：2024-09-04
申请号：EP18799141.9
申请日：2018-05-11
IPC分类号： A61B6/03 , G01N23/046 , G01N23/083 , G01T1/24 , H01L31/108
CPC分类号： H01L31/108 , G01N23/046 , G01N23/083 , G01T1/242 , A61B6/4241

2. 发明授权

EP3956692B1 IN-LINE X-RAY FOCUSING OPTICS USED FOR MANIPULATION OF X-RAYS IN MEDICAL TRANSMISSION RADIOGRAPHY 有权
公开(公告)号：EP3956692B1
公开(公告)日：2024-06-19
申请号：EP19924777.6
申请日：2019-10-02
IPC分类号： G01T1/36 , A61B6/00 , G01T1/16 , G01T1/24
CPC分类号： A61B6/4021 , A61B6/4241 , A61B6/484 , A61B6/487 , A61B6/502 , A61B6/4291

3. 发明授权

EP3310259B1 DUAL ENERGY DIFFERENTIAL PHASE CONTRAST IMAGING 有权
公开(公告)号：EP3310259B1
公开(公告)日：2018-11-14
申请号：EP16757248.6
申请日：2016-08-26
申请人： Koninklijke Philips N.V.
发明人： MARTENS, Gerhard , VAN STEVENDAAL, Udo
IPC分类号： A61B6/00 , G21K1/10
CPC分类号： A61B6/4042 , A61B6/4035 , A61B6/4241 , A61B6/4291 , A61B6/482 , A61B6/484 , G02B5/1838 , G21K1/10 , G21K2207/005
摘要： A grating based interferometric X-ray imaging apparatus having an interferometer (IF). The interferometer comprises at least one grating (G1). The grating (G1) is tiltable relative to an optical axis of the X-ray imaging apparatus. This allows changing a design energy of the X-ray imaging apparatus.

4. 发明公开

EP3391819A1 BEAM HARDENING CORRECTION IN X-RAY DARK-FIELD IMAGING 审中-公开
公开(公告)号：EP3391819A1
公开(公告)日：2018-10-24
申请号：EP17167384.1
申请日：2017-04-20
申请人： Koninklijke Philips N.V.
发明人： YAROSHENKO, Andriy , MAACK, Hanns-Ingo , KOEHLER, Thomas , DE MARCO, Fabio , GROMANN, Lukas , WILLER, Konstantin , Noël, Peter
IPC分类号： A61B6/00 , G01V5/00
CPC分类号： A61B6/4291 , A61B6/4241 , A61B6/482 , A61B6/484 , A61B6/5258 , A61B6/583 , G01N2223/206 , G01N2223/423 , G01T7/005
摘要： The invention relates to beam hardening correction in X-ray Dark-Field imaging of a subject including a first material and a second material, the first and second material having different beam hardening properties. As the X-ray imaging data includes information on the internal structure of the imaged subject, such information maybe used, together with appropriate calibration data to identify the beam hardening contributions occurring in the imaged area of the subject, so to allow for a correction of artifacts due to beam hardening in X-ray Dark-Field imaging.

5. 发明授权

EP2994051B1 PHOTON-COUNTING DETECTOR CALIBRATION 有权
公开(公告)号：EP2994051B1
公开(公告)日：2018-08-29
申请号：EP14727935.0
申请日：2014-05-10
申请人： Koninklijke Philips N.V. , Philips GmbH
发明人： SCHIRRA, Carsten Oliver , THRAN, Axel , DAERR, Heiner , ROESSL, Ewald
IPC分类号： A61B6/03 , A61B6/00 , G01T1/00
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/4233 , A61B6/482 , A61B6/583 , A61B6/585 , G01T1/161 , G01T1/169 , G01T7/005
摘要： A method includes determining calibration factors for calibrating photon-counting detectors of a spectral imaging system by combining a heuristic calibration of the photon-counting detectors and an analytical calibration of the photon-counting detectors and generating a set of photon-counting calibration factors based on the combining of the a heuristic calibration and the analytical calibration. The photon-counting calibration factors, when applied to measured energy-resolved data from the photon-counting detectors of a spectral CT scan of a subject or object, mitigate spectral distortion caused by a radiation intensity profile shaper that filters a radiation beam of the spectral CT scan.

6. 发明授权

EP2751594B1 DETECTION APPARATUS FOR DETECTING PHOTONS TAKING PILE-UP EVENTS INTO ACCOUNT 有权转让
公开(公告)号：EP2751594B1
公开(公告)日：2018-08-08
申请号：EP12821048.1
申请日：2012-12-13
申请人： Koninklijke Philips N.V. , Philips Deutschland GmbH
发明人： PROKSA, Roland , ROESSL, Ewald
IPC分类号： G01T1/17
CPC分类号： A61B6/585 , A61B6/4241 , A61B6/5205 , A61B6/5258 , A61B6/582 , A61B2560/0223 , A61B2560/0238 , G01R29/0273 , G01R29/033 , G01R29/0878 , G01R29/24 , G01T1/171 , G01T1/18 , G06F7/64 , H01L27/14856 , H03K5/1252 , H03K5/2463 , H03K21/40
摘要： The invention relates to a detection apparatus (12) for detecting photons. The detection apparatus comprises a pile-up determining unit (15) for determining whether detection signal pulses being indicative of detected photons are caused by a pile-up event or by a non-pile-up event, wherein a detection values generating unit (16) generates detection values depending on the detection signal pulses and depending on the determination whether the respective detection signal pulse is caused by a pile-up event or by a non-pile-up event. In particular, the detection values generating unit can be adapted to reject the detection signal pulses caused by pile-up events while generating the detection values. This allows for an improved quality of the generated detection values.

7. 发明公开

EP3346922A1 COMPUTER TOMOGRAPHY X-RAY IMAGING 有权
公开(公告)号：EP3346922A1
公开(公告)日：2018-07-18
申请号：EP17765381.3
申请日：2017-09-04
申请人： Koninklijke Philips N.V.
发明人： BRENDEL, Bernhard Johannes , KOEHLER, Thomas , PROKSA, Roland
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/482 , A61B6/032 , A61B6/4241 , A61B6/5258
摘要： The present invention relates to computer tomography X-ray imaging. In order to provide further improved data for the reconstruction, a system (10) for computer tomography X-ray imaging is provided. The system comprises a data interface (12) and a processing unit (14). The data interface is configured to provide at least first and second CT X-ray radiation projection data for at least a first and second X-ray energy range, which ranges are different from each other. The processing unit is configured to determine a correction for slice normalization, and to apply an equal slice normalization for the first and the second CT X-ray projection data and thereby generating prepared first and second CT X-ray projection data. For the correction, the equal slice normalization is based on measured data of outer detector elements. Further, the data interface is configured to provide the prepared first and second CT X-ray projection data for further processing. In an example, the system further comprises a computer tomography X-ray imaging acquisition arrangement (20) with an X-ray source (22) configured to generate an X-ray beam, and an X-ray detector (26) configured as an energy discriminating X-ray detector to simultaneously provide X-ray radiation projection data for at least two different X-ray energy ranges separately. The computer tomography X-ray imaging acquisition arrangement is configured to acquire at least the first and second CT X-ray projection data of a region of interest of an object for the at least first and second X-ray energy range.

8. 发明公开

EP3183593A4 MULTI-BEAM STEREOSCOPIC X-RAY BODY SCANNER 有权
公开(公告)号：EP3183593A4
公开(公告)日：2018-05-09
申请号：EP15833145
申请日：2015-08-14
申请人： ADANI SYSTEMS INC
发明人： LINEV VLADIMIR N
IPC分类号： G01R33/48
CPC分类号： A61B6/4014 , A61B6/02 , A61B6/022 , A61B6/04 , A61B6/06 , A61B6/12 , A61B6/4078 , A61B6/4241 , A61B6/4405 , G01N23/00 , G01N23/02 , G01N2223/03 , G01V5/0016 , G01V5/0058
摘要： An X-ray examination station includes a first source of X-ray radiation for whole body scanning of a human body using a first fan beam of X-ray radiation; a first vertical linear radiation detector configured to detect the first fan beam; a second source of X-ray radiation installed at mid-height of a person being examined, for scanning a central portion of the human body using a second fan beam of X-ray radiation; a second vertical detector of X-ray radiation configured to detect the second fan beam; and a control unit configured to turn on each of the X-ray radiation sources. The first and the second radiation fan beams are emitted in parallel planes. The first X-ray radiation source is turned on for the whole body scanning. The second X-ray radiation source is turned on for scanning the central portion of the body.

9. 发明授权

EP2091437B1 CT IMAGING SYSTEM 有权转让
标题翻译： CT成像系统
公开(公告)号：EP2091437B1
公开(公告)日：2018-02-28
申请号：EP07849278.2
申请日：2007-11-29
申请人： Koninklijke Philips N.V. , Philips Intellectual Property & Standards GmbH
发明人： PROKSA, Roland
IPC分类号： A61B6/03 , A61B6/00
CPC分类号： A61B6/504 , A61B6/032 , A61B6/4241 , A61B6/481 , A61B6/482 , A61B6/507 , Y10S378/901
摘要： The invention relates to a CT imaging system for determining the flow of a substance within an object, wherein the CT imaging system comprises a polychromatic X-ray source and an energy-resolving X-ray detector for obtaining detection signals depending on the X-ray radiation after passing through the object. A calculation unit (12) determines a k-edge 5 component of the substance from the detection signals, and a reconstruction unit (13) reconstructs a time series of k-edge image from the determined k-edge component. A flow determination unit (14) determines flow values indicative for the flow within the object from the time series of k-edge images.

10. 发明授权

EP1581804B1 TREATMENT MACHINE WITH A FLAT PANEL IMAGER 失效转让
标题翻译：带平板成像仪的治疗机
公开(公告)号：EP1581804B1
公开(公告)日：2018-02-28
申请号：EP03786979.9
申请日：2003-11-21
申请人： Varian Medical Systems, Inc.
发明人： SHAPIRO, Edward, G. , SEPPI, Edward, J. , PAVKOVICH, John, M. , JOHNSEN, Stanley, W. , COLBETH, Richard, E.
IPC分类号： A61B6/04 , A61N5/10 , G01N23/00 , H05G1/60 , G21K1/12 , A61B6/03 , G01T1/202
CPC分类号： A61N5/1049 , A61B6/032 , A61B6/0457 , A61B6/4085 , A61B6/42 , A61B6/4208 , A61B6/4233 , A61B6/4241 , A61B6/461 , A61B6/487 , A61N5/10 , A61N5/103 , A61N5/1031 , A61N5/1039 , A61N5/1048 , A61N5/1064 , A61N2005/1054 , A61N2005/1061 , G01T1/202
摘要： A multi-mode cone beam computed tomography radiotherapy simulator and treatment machine is disclosed. The radiotherapy simulator and treatment machine both include a rotatable gantry on which is positioned a cone-beam radiation source and a flat panel imager. The flat panel imager captures x-ray image data to generate cone-beam CT volumetric images used to generate a therapy patient position setup and a treatment plan.

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