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公开(公告)号：US20230117579A1
公开(公告)日：2023-04-20
申请号：US17642413
申请日：2021-07-05
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： ROGER STEADMAN BOOKER , WALTER RUETTEN , MATTHIAS SIMON
IPC: A61B6/00
Abstract: System (SYS) for supporting X-ray imaging and related methods. The system (SYS) comprises a machine learning module (MLM), a logic (LG) configured to compute output correction information for adjusting an imaging geometry of an X-ray imaging apparatus to achieve a target imaging geometry. A modulator (MOD,L-MOD, H-MOD, S-MOD) is the system is configured to provide a user instruction for imaging geometry adjustment. The user instruction is modulated based on the output correction information. The machine learning module was previously trained on training data including a specific user's responses to previous instructions.
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公开(公告)号：US20220413170A1
公开(公告)日：2022-12-29
申请号：US17781151
申请日：2020-12-08
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： ROGER STEADMAN BOOKER , AMIR LIVNE
IPC: G01T1/24 , H01L27/146
Abstract: The present invention relates to a photon counting detector comprising a plurality of detector tiles. Each detector tile comprises a sensor material layer (20), an integrated circuit (30), an input/output connection or flex (50), a high voltage electrode or foil (60), and an anti scatter grid (10). The input/output connection or flex is connected to the integrated circuit. The integrated circuit is configured to readout signals from the sensor material layer. The anti scatter grid is positioned adjacent to a surface of the sensor material layer. The high voltage electrode or foil extends across the surface of the sensor material layer and is configured to provide a bias voltage to the surface of the sensor material layer. The high voltage electrode or foil comprises at least one tail section (70). Relating to the photon counting detector and the plurality of detector tiles, the high voltage electrode or foil of a first detector tile is configured to make an electrical connection with the high voltage electrode or foil of an adjacent detector tile via one or more tail sections of the at least one tail section of the first detector tile and/or via one or more tail sections of the at least one tail section of the adjacent detector tile.
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公开(公告)号：US20220037048A1
公开(公告)日：2022-02-03
申请号：US17276243
申请日：2019-09-18
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： ROGER STEADMAN BOOKER , EWALD ROESSL , DENNIS JOHN VERSTEEG
IPC: G21K1/06 , G01N23/041
Abstract: A switchable grating for phase contrast imaging comprising a reservoir with a medium and x-ray absorbing particles acoustically connected to a first ultrasound generator and a second ultrasound generator arranged along a side of the reservoir orthogonal to the first side. The ultrasound generators are each, individually or together, configured to generate a soundwave with a frequency and phase such that a standing wave is formed within the medium causing the x-ray absorbing particles to organize along pressure nodes of the standing waves.
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公开(公告)号：US20210067710A1
公开(公告)日：2021-03-04
申请号：US16960787
申请日：2019-01-08
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： ROGER STEADMAN BOOKER , EWALD ROESSL
IPC: H04N5/32 , A61B6/00 , G01N23/046
Abstract: A signal processing system (SPS) and related method. The system comprises an input interface (IN) for receiving at least two data sets, comprising a first data set and second data set. The first data set is generated by an X-ray detector sub-system (XDS) at a first pixel size and the second data set generated at a second pixel size different from the first pixel size. An estimator (EST) is configured to compute, based on the two data sets, an estimate of a charge sharing impact.
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公开(公告)号：US20200375556A1
公开(公告)日：2020-12-03
申请号：US16772530
申请日：2018-12-27
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： GEREON VOGTMEIER , ROGER STEADMAN BOOKER
Abstract: The present invention relates to an apparatus for generating dual energy X-ray imaging data. It is described to position an X-ray detector relative to an X-ray source such that at least a part of a region between the X-ray source and the X-ray detector is an examination region for accommodating an object. A grid filter is positioned (220) between the examination region and the X-ray source. The X-ray source produces (230) a focal spot on a target to produce X-rays. The X-ray source moves (240) the focal spot in a first direction across a surface of the target. The grid filter has a structure in a first orientation such that the movement of the focal spot in the first direction results in an associated change in an intensity of X-rays transmitted by the grid filter. The X-ray source moves (250) the focal spot in a second direction across the surface of the target that is orthogonal to the first direction. The grid filter has a structure in a second orientation orthogonal to the first orientation such that the movement of the focal spot in the second direction results in an associated change in an energy spectrum of X-rays transmitted by the grid filter. The X-ray detector detects (260) at least some of the X-rays transmitted by the grid filter.
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Patent Agency Ranking
公开(公告)号：US20230077520A1
公开(公告)日：2023-03-16
申请号：US17628629
申请日：2021-05-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： BERND MENSER , CAROLINA RIBBING , ROGER STEADMAN BOOKER
Abstract: The present invention relates to an X-ray imaging system (10), comprising a radiograph X-ray attenuation image acquisition unit (20), at least one sensor (30), and a processing unit (40). The radiograph X-ray attenuation image acquisition unit is configured to acquire a radiograph image of a patient. The radiograph X-ray attenuation image acquisition unit is configured to provide the radiograph image to the processing unit. The at least one sensor is configured to acquire sensor data of the patient. The at least one sensor is configured to provide the sensor data to the processing unit. The processing unit is configured to determine a magnitude and direction of movement of the patient during a time of acquisition of the radiograph image, the determination comprising utilization of the sensor data. The processing unit is configured to post-process the radiograph image comprising utilization of the determined magnitude and direction of movement of the patient during the time of acquisition of the radiograph image.
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公开(公告)号：US20230029181A1
公开(公告)日：2023-01-26
申请号：US17786193
申请日：2020-12-23
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： CHRISTOPH HERRMANN , YOAD YAGIL , ROGER STEADMAN BOOKER
Abstract: Disclosed herein is a radiological instrument (100, 200, 300, 400, 600, 700, 800) comprising at least one pulse shaper circuit (102) configured for a direct conversion radiation detector (108). The at least one pulse shaper circuit comprises an amplifier (110). The pulse shaper further comprises a feedback circuit (118) connected in parallel with the amplifier; a first switching unit (120) connected in series with the feedback circuit; a second switching unit (122) connected in parallel with the amplifier; a discriminator circuit (124) that provides a discriminator signal (128) when the output exceeds a controllable signal threshold; and a control unit (124) for controlling the first switching unit and the second switching unit, wherein the control unit controls the second switching unit such that a substantial part of the signal is integrated, when the second switching unit is closed.
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公开(公告)号：US20230024679A1
公开(公告)日：2023-01-26
申请号：US17788343
申请日：2020-12-15
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： EWALD ROESSL , ROGER STEADMAN BOOKER , ROGER STEADMAN BOOKER
Abstract: The present invention relates to a system (100) and a method for correcting a number of counts (115) in an energy bin of X-ray photons detected by a photon counting detector (111) for a spectral computed tomography system (300). An illumination history (125) of the photon counting detector is taken into account to determine a gain and/or an offset of the photon counting detector. The number of counts in an energy bin of detected photons is corrected according to a correction value (135) corresponding to the determined gain and/or offset.
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公开(公告)号：US20230008276A1
公开(公告)日：2023-01-12
申请号：US17781429
申请日：2020-12-09
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： GEREON VOGTEMEIR , ROGER STEADMAN BOOKER , ALBERT GARCIA I TORMO , KLAUS JÜRGEN ENGEL
Abstract: The present invention relates to spectral correction. A spectral correction apparatus is described that is configured to identify a voltage fluctuation in the X-ray tube and to parameterize the high voltage fluctuation to correct the effective X-ray spectrum per individual frame.
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公开(公告)号：US20210302599A1
公开(公告)日：2021-09-30
申请号：US17263916
申请日：2019-08-01
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： ROGER STEADMAN BOOKER , EWALD ROESSL
Abstract: The present invention relates to a photon counting detector comprising a first direct conversion layer (10) comprising a low-absorption direct conversion material (11) for converting impinging high-energy electromagnetic radiation (100) into a first count signal and first electrical contacts (12), a second direct conversion layer (20) comprising a high-absorption direct conversion material (21) for converting impinging high-energy electromagnetic radiation (100) into a second count signal and second electrical contacts (22), said high-absorption direct conversion material having a higher absorption than said low-absorption direct conversion material, and a carrier layer (30, 30a, 30b) comprising first and second terminals (31, 32) in contact with the first and second electrical contacts and processing circuitry (35) configured to correct, based on the first count signal, the second count signal for errors, wherein said first direct conversion layer and the second direct conversion layer are arranged such that the high-energy electromagnetic radiation transmits the first direct conversion layer before it hits the second direct conversion layer.
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