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    DETERMINING LUMEN FLOW PARAMETERS
    1.
    发明申请
    DETERMINING LUMEN FLOW PARAMETERS 有权

    公开(公告)号：US20240404057A1

    公开(公告)日：2024-12-05

    申请号：US18697876

    申请日：2022-09-28

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： RAOUL FLORENT ,  CLAIRE LEVRIER ,  ALEXANDRE THIS ,  HOLGER SCHMITT ,  ARJEN VAN DER HORST

    IPC: G06T7/00 ,  G16H30/20

    Abstract: A system (100) for determining flow parameters of a lumen (110) in a hyperemic state induced subsequent to a contrast agent injection (Inj 1) into the lumen in a basal state, is provided. The system comprising one or more processors (120) configured to: determine (S110), based on received angiographic data representing the injected contrast agent and/or received injector data representing the injected contrast agent, a temporal window (TH0, TH1) representing a duration of the induced hyperemic state; and output (S120) a signal (Sh) indicative of the temporal window (TH0, TH1).

    APPARATUS, METHOD AND COMPUTER PROGRAM FOR MONITORING A SUBJECT DURING A MEDICAL IMAGING PROCEDURE
    2.
    发明申请
    APPARATUS, METHOD AND COMPUTER PROGRAM FOR MONITORING A SUBJECT DURING A MEDICAL IMAGING PROCEDURE 有权

    公开(公告)号：US20230005154A1

    公开(公告)日：2023-01-05

    申请号：US17780483

    申请日：2020-12-01

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： ALBERT GARCIA I TORMO ,  RINK SPRINGER ,  IHOR OLEHOVYCH KIRENKO ,  JULIEN SENEGAS ,  HOLGER SCHMITT

    IPC: G06T7/11 ,  G06T7/73 ,  G06T7/80 ,  A61B6/00

    Abstract: The invention refers to an apparatus for monitoring a subject (121) during an imaging procedure, e.g. CT-imaging The apparatus (110) comprises a monitoring image providing unit (111) providing a first monitoring image and a second monitoring image acquired at different support positions, a monitoring position providing unit (112) providing a first monitoring position of a region of interest in the first monitoring image, a support position providing unit (113) providing support position data of the support positions, a position map providing unit (114) providing a position map mapping calibration support positions to calibration monitoring positions, and a region of interest position determination unit (115) determining a position of the region of interest in the second monitoring image based on the first monitoring position, the support position data, and the position map. This allows to determine the position of the region of interest accurately and with low computational effort.

    ADAPTIVE HELICAL COMPUTED TOMOGRAPHY
    6.
    发明申请
    ADAPTIVE HELICAL COMPUTED TOMOGRAPHY 有权

    公开(公告)号：US20220071586A1

    公开(公告)日：2022-03-10

    申请号：US17419786

    申请日：2020-01-06

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： CLAAS BONTUS ,  HOLGER SCHMITT

    IPC: A61B6/00 ,  A61B6/03 ,  A61B6/04 ,  A61B6/06 ,  A61B6/02

    Abstract: A device (10) for controlling an image acquisition of a multi-slice computed tomography system (1), MSCT, is disclosed. The device comprises an input (11) for receiving projection image data from the MSCT (1), an output (12) for controlling operation of the MSCT (1) and a processor (13). The processor (13) is adapted for controlling the MSCT to acquire a large volume localizer radiograph, and for defining an organ region in the localizer radiograph that delimits an organ of interest. The processor is adapted for acquiring a large volume helical CT scan of the subject, in which an X-ray cone angle is increased when the organ region in the subject is translated into the examination volume and decreased when the organ region is translated out of the examination volume.

    STANDARDIZED CORONARY ARTERY DISEASE METRIC
    7.
    发明申请
    STANDARDIZED CORONARY ARTERY DISEASE METRIC 审中-公开

    公开(公告)号：US20200060637A1

    公开(公告)日：2020-02-27

    申请号：US16500215

    申请日：2018-04-02

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： HOLGER SCHMITT ,  HANNES NICKISCH ,  MANINDRANATH VEMBAR

    IPC: A61B6/00 ,  A61B6/03 ,  G06T7/00 ,  G16H50/50

    Abstract: A computing system (118) includes a computer readable storage medium (122) with computer executable instructions (124), including a biophysical simulator (126), and a reference location (128), and a processor (120) configured to the biophysical simulator and simulate a reference FFR value at a predetermined location along a segmented coronary vessel indicated by the reference location. A computer readable storage medium encoded with computer readable instructions, which, when executed by a processor of a computing system, causes the processor to simulate a reference FFR value at a predetermined location along a segmented coronary vessel indicated by a predetermined reference location. A method including simulating a reference FFR value at a predetermined location along a segmented coronary vessel indicated by a predetermined reference location.

    MEASUREMENT OF BLOOD FLOW PARAMETERS
    8.
    发明申请
    MEASUREMENT OF BLOOD FLOW PARAMETERS 有权

    公开(公告)号：US20250160779A1

    公开(公告)日：2025-05-22

    申请号：US18841752

    申请日：2023-02-22

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： ERAN LANGZAM ,  HANNES NICKISCH ,  CHRISTIAN HAASE ,  MICHAEL GRASS ,  HOLGER SCHMITT

    IPC: A61B6/50 ,  A61B6/00

    Abstract: A computer-implemented method of measuring a blood flow parameter in a vasculature, is provided. The method includes: analyzing spectral CT projection data to isolate from the spectral CT projection data, contrast agent projection data representing the flow of the injected contrast agent; sampling the contrast agent projection data at one or more regions of interest in the vasculature to provide temporal blood flow data at the one or more regions of interest; and calculating, from the temporal blood flow data, a value of one or more blood flow parameters at the one or more regions of interest.

    DETERMINING VESSEL PARAMETERS
    9.
    发明申请
    DETERMINING VESSEL PARAMETERS 有权

    公开(公告)号：US20240407656A1

    公开(公告)日：2024-12-12

    申请号：US18698045

    申请日：2022-09-07

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： ALEXANDRE THIS ,  RAOUL FLORENT ,  CLAIRE LEVRIER ,  HOLGER SCHMITT ,  ARJEN VAN DER HORST

    IPC: A61B5/0215 ,  A61B6/00 ,  A61B6/50

    Abstract: A system (100) for providing a normalised microcirculatory resistance value for a vessel (110), is provided. The system includes one or more processors (120) configured to: compute (S110) a microcirculatory resistance value for the vessel (110) based on a transit time (TT) taken for an injected bolus to travel between a proximal position (Posa) in the vessel, and a distal position (Posd) in the vessel; and divide (S120) the computed microcirculatory resistance value by a transit length (dT) representing a length of the vessel between the proximal position (Posa) and the distal position (Posd), to provide the normalised microcirculatory resistance value.

    IMAGE-BASED PLANNING OF TOMOGRAPHIC SCAN
    10.
    发明公开
    IMAGE-BASED PLANNING OF TOMOGRAPHIC SCAN 审中-公开

    公开(公告)号：US20240148351A1

    公开(公告)日：2024-05-09

    申请号：US18279889

    申请日：2022-02-25

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： MARTIN BERGTHOLDT ,  JULIEN SENEGAS ,  HRISHIKESH NARAYANRAO DESHPANDE ,  HOLGER SCHMITT ,  LENA FRERKING

    IPC: A61B6/00 ,  G06T7/30 ,  G06T7/55

    CPC classification number: A61B6/545 ,  A61B6/488 ,  G06T7/30 ,  G06T7/55 ,  G06T2207/10028 ,  G06T2207/30004

    Abstract: The present invention relates to a system (10) and related method for planning a tomographic image acquisition of an object to be imaged by a tomographic imaging scanner (20). The system comprises an input (12) for receiving a 3D pre-scan image of the object and a camera system (14) for capturing 3D image information of the object. The system comprises a processor (16) for determining corresponding image features in the camera image and the pre-scan image. The processor determines an image transformation that relates the corresponding image features to each other, such that the object as represented by the pre-scan image can be transformed to the orientation, position and/or deformation of the object represented in the camera image. The processor plans the image acquisition, in which the pre-scan image is used to determine parameters including scan range. An output (18) outputs a signal representative of the determined plan.

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