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    Signaling of an aortic valve state
    1.
    发明授权
    Signaling of an aortic valve state 有权

    公开(公告)号：US11224394B2

    公开(公告)日：2022-01-18

    申请号：US15770541

    申请日：2016-10-27

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Dirk Schaefer ,  Cherif Sahyoun ,  Eberhard Sebastian Hansis ,  Christian Haase ,  Tobias Klinder ,  Michael Grass

    IPC: A61B6/00 ,  A61B6/12 ,  A61B5/00 ,  A61B5/339 ,  A61B8/08 ,  A61B5/021 ,  A61B8/00 ,  A61B5/349

    Abstract: The invention relates to an apparatus configured to display an aortic valve image and an indicator when the aortic valve is in its open-state and/or when the valve is in its closed-state. The indicator is supposed to be in an overlay to the image of the aortic valve, such that a physician can see on the same display image the information needed to advance a guide wire or catheter through the aortic valve of a heart. This may prevent damaging ensures not to damage the aortic valve. The physician receives the relevant information, when the aortic valve is in its open-state and thus being in a state to be passed by the catheter. The information, whether the aortic valve is in its open-state or in its closed-state, corresponds to the systolic phase and the distal phase of the heart, respectively. The information, when the heart is in its systolic phase and when it is in the diastolic phase may be extracted from an ECG measurement. From the detection of these cardiac phases, the closed-state of the valve and/or the open-state of the valve can be estimated using general knowledge about flood flow during the cardiac cycle.

    Spectral imaging
    2.
    发明授权
    Spectral imaging 有权

    公开(公告)号：US11123034B2

    公开(公告)日：2021-09-21

    申请号：US16663824

    申请日：2019-10-25

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Dirk Schaefer ,  Axel Thran ,  Thomas Koehler

    IPC: A61B6/00 ,  G01T1/20 ,  G01T1/29 ,  A61B5/00

    Abstract: An imaging system includes radiation source that emits radiation that traverses an examination region and a portion of a subject therein and a detector array that detects radiation that traverses the examination region and the portion of the subject therein and generates a signal indicative thereof. A volume scan parameter recommender recommends at least one spectral scan parameter value for a volume scan of the portion of the subject based on a spectral decomposition of first and second 2D projections acquired by the radiation source and detector array. The first and second 2D projections have different spectral characteristics. A console employs the recommended at least one spectral scan parameter value to perform the volume scan of the portion of the subject.

    Automated coronary angiography analysis
    3.
    发明授权
    Automated coronary angiography analysis 有权

    公开(公告)号：US12198335B2

    公开(公告)日：2025-01-14

    申请号：US17618445

    申请日：2020-06-29

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Christian Haase ,  Dirk Schaefer ,  Michael Grass

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

    Abstract: A method and apparatus for analyzing diagnostic image data are provided in which a plurality of acquisition images of a vessel of interest having been acquired with a pre-defined acquisition method is received at a trained classifying device and classified, by the classifying device, to extract at least one quantitative feature of the vessel of interest from at least one acquisition image of the plurality of acquisition images. The at least one quantitative feature is then output associated with the at least one acquisition image while the acquisition of the diagnostic image data is still in progress and one or more adjustable image acquisition settings are adjusted based on the at least one quantitative feature to optimize the acquisition of the diagnostic image data.

    SPECTRAL IMAGING
    4.
    发明申请
    SPECTRAL IMAGING 审中-公开
    光谱成像

    公开(公告)号：US20150038839A1

    公开(公告)日：2015-02-05

    申请号：US14378179

    申请日：2013-02-20

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Dirk Schaefer ,  Axel Thran ,  Thomas Koehler

    IPC: A61B6/00 ,  A61B5/00

    CPC classification number: A61B6/5205 ,  A61B5/0075 ,  A61B6/42 ,  G01T1/2008 ,  G01T1/2985

    Abstract: An imaging system includes radiation source (106) that emits radiation that traverses an examination region and a portion of a subject therein and a detector array (114) that detects radiation that traverses the examination region and the portion of the subject therein and generates a signal indicative thereof. A volume scan parameter recommender (120) recommends at least one spectral scan parameter value for a volume scan of the portion of the subject based on a spectral decomposition of first and second 2D projections acquired by the radiation source and detector array. The first and second 2D projections have different spectral characteristics. A console (122) employs the recommended at least one spectral scan parameter value to perform the volume scan of the portion of the subject.

    Abstract translation: 一种成像系统包括：辐射源（106），其辐射穿过检查区域和被检体的一部分的辐射;以及检测器阵列（114），其检测穿过检查区域和被检体的部分的辐射，并产生信号 指示。 卷扫描参数推荐器（120）基于由辐射源和检测器阵列获取的第一和第二2D投影的光谱分解，推荐对于对象部分的体扫描的至少一个光谱扫描参数值。 第一和第二2D投影具有不同的光谱特征。 控制台（122）采用推荐的至少一个光谱扫描参数值来对被摄体的部分进行体积扫描。

    Apparatus for vessel characterization
    6.
    发明授权
    Apparatus for vessel characterization 有权

    公开(公告)号：US10694955B2

    公开(公告)日：2020-06-30

    申请号：US16080243

    申请日：2017-02-28

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Christian Haase ,  Michael Grass ,  Dirk Schaefer

    IPC: A61B5/0215 ,  A61B5/107 ,  A61B5/02 ,  A61B5/06 ,  A61B5/00 ,  G06T7/00 ,  A61B6/12 ,  A61B8/08

    Abstract: The invention discloses an apparatus (2), a system (1) and a method (100) for characterization of vessels and for vessel modeling. The cross sectional area (A1) of the vessel is derived from pressure measurements (p1, p2) obtained by an instrument (3) from within the vessel. When multiple cross sectional areas (A1, A2) are derived for multiple reference positions (r1, r2) based on pressure measurements (p1, p2, p3) along the vessel, a representation (20, 30) of the vessel can be rendered, without requiring any imaging modality. Furthermore, the effect of the pulsatile blood flow on the elasticity of the vessel walls can be visualized, supporting assessment of a stenosis or an aneurysm formation along the vessel.

    Fractional flow reserve determination
    7.
    发明授权
    Fractional flow reserve determination 有权

    公开(公告)号：US10552958B2

    公开(公告)日：2020-02-04

    申请号：US15570620

    申请日：2016-04-26

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Eberhard Sebastian Hansis ,  Holger Schmitt ,  Michael Grass ,  Dirk Schaefer ,  Hanno Heyke Homann ,  Tobias Klinder ,  Christian Haase

    IPC: G06K9/00 ,  G06T7/00 ,  G06T17/20 ,  A61B5/0215 ,  A61B5/026 ,  A61B5/00 ,  A61B6/03 ,  A61B6/00 ,  G06T7/60

    Abstract: The present invention relates to a device (1) for fractional flow reserve determination, the device (1) comprising: a model source (10) configured to provide a first three-dimensional model (3DM1) of a portion of an imaged vascular vessel tree (VVT) surrounding a stenosed vessel segment (SVS) and configured to provide a second three-dimensional model (3DM2) of a pressure wire insertable into the vascular vessel tree (VVT); and a processor (20) configured to calculate a first blood flow (Q1) through the stenosed vessel segment (SVS) with the pressure wire (PW) inserted into the vascular vessel tree (VVT) based on the first and the second three-dimensional model and to calculate a second blood flow (Q2) through the stenosed vessel segment (SVS) without the pressure wire (PW) inserted into the vascular vessel tree (VVT) based on the first three-dimensional model (3DM1) and to determine a first fractional flow reserve value (FFR1) to be measured with the pressure wire (PW) inserted into the vascular vessel tree (VVT) based on the first blood flow (Q1) and to determine a second fractional flow reserve value (FFR2) to be measured without the pressure wire (PW) inserted into the vascular vessel tree (VVT) based on the second blood flow (Q1).

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