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    Determination of dynamic DRRs
    1.
    发明授权
    Determination of dynamic DRRs 有权

    公开(公告)号：US12118648B2

    公开(公告)日：2024-10-15

    申请号：US18309968

    申请日：2023-05-01

    申请人： Brainlab AG

    发明人： Kajetan Berlinger ,  Birte Domnik ,  Elisa Garcia Corisco ,  Pascal Bertram

    IPC分类号： G06T11/00 ,  A61B6/00 ,  A61B6/03 ,  A61B6/12 ,  A61N5/10 ,  G06T7/00 ,  G06T7/20 ,  G16H50/50

    CPC分类号： G06T11/003 ,  A61B6/032 ,  A61B6/12 ,  A61B6/486 ,  A61B6/5223 ,  A61B6/5288 ,  A61N5/1037 ,  A61N5/1049 ,  G06T7/0012 ,  G06T7/20 ,  G06T11/008 ,  G16H50/50 ,  A61N2005/1062 ,  G06T2207/10076 ,  G06T2207/10081 ,  G06T2207/10124 ,  G06T2207/30241 ,  G06T2211/412

    摘要： A computer implemented method for determining a two dimensional DRR referred to as dynamic DRR based on a 4D-CT, the 4D-CT describing a sequence of three dimensional medical computer tomographic images of an anatomical body part of a patient, the images being referred to as sequence CTs, the 4D-CT representing the anatomical body part at different points in time, the anatomical body part comprising at least one primary anatomical element and secondary anatomical elements, the computer implemented method comprising the following steps: acquiring the 4D-CT; acquiring a planning CT, the planning CT being a three dimensional image used for planning of a treatment of the patient, the planning CT being acquired based on at least one of the sequence CTs or independently from the 4D-CT, acquiring a three dimensional image, referred to as undynamic CT, from the 4D-CT, the undynamic CT comprising at least one first image element representing the at least one primary anatomical element and second image elements representing the secondary anatomical elements; acquiring at least one trajectory, referred to as primary trajectory, based on the 4D-CT, the at least one primary trajectory describing a path of the at least one first image element as a function of time; acquiring trajectories of the second image elements, referred to as secondary trajectories, based on the 4D-CT; for the image elements of the undynamic CT, determining trajectory similarity values based on the at least one primary trajectory and the secondary trajectories, the trajectory similarity values respectively describing a measure of similarity between a respective one of the secondary trajectories and the at least one primary trajectory; determining the dynamic DRR by using the determined trajectory similarity values, and, in case the planning CT is acquired independently from the 4D-CT, further using a transformation referred to as planning transformation from the undynamic CT to the planning CT, at least a part of image values of image elements of the dynamic DRR being determined by using the trajectory similarity values.

    Systems and methods for imaging device
    4.
    发明授权
    Systems and methods for imaging device 有权

    公开(公告)号：US11989881B2

    公开(公告)日：2024-05-21

    申请号：US17659495

    申请日：2022-04-18

    申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

    发明人： Cuifang Li ,  Shihong Han ,  Gongze Zhu

    IPC分类号： G06T7/00 ,  G06T1/20 ,  G06T1/60

    CPC分类号： G06T7/0014 ,  G06T1/20 ,  G06T1/60 ,  G06T2207/10124 ,  G06T2207/20104

    摘要： A method and system for acquiring scan data. The system includes a processing device and an imaging device. The processing device is configured to generate a target protocol group corresponding to a plurality of target bed positions by adjusting, based on a reference image, at least one parameter of an initial protocol group. The target protocol group includes a target general protocol for localizing the plurality of target bed positions and a plurality of target primary protocols for localizing each of the plurality of target bed positions. The imaging device is configured to acquire scan data by scanning the object based on the target protocol group.

    SURGICAL NAVIGATION SYSTEM WITH FLAT PANEL REGISTRATION FIXTURE
    7.
    发明公开
    SURGICAL NAVIGATION SYSTEM WITH FLAT PANEL REGISTRATION FIXTURE 审中-公开

    公开(公告)号：US20230397957A1

    公开(公告)日：2023-12-14

    申请号：US17805895

    申请日：2022-06-08

    申请人： GLOBUS MEDICAL, INC.

    发明人： Neil R. Crawford ,  Rand Kmiec

    IPC分类号： A61B34/20 ,  A61B90/00 ,  G06T7/38 ,  G06T7/00

    CPC分类号： A61B34/20 ,  A61B90/39 ,  G06T7/38 ,  G06T7/0012 ,  A61B2034/2065 ,  A61B2090/3966 ,  G06T2207/10124

    摘要： A registration fixture for registration of a medical image to a three-dimensional tracking space, includes a base frame, an orientation plate, and a registration plate. The base frame is adapted to be mounted to an x-ray medical imaging device. The orientation plate is attached to the base frame and has a first set of radiopaque markers arranged along at least four radial lines which extend from a center location. The radial lines are angularly spaced apart about the center location. At least three of the radiopaque markers are arranged along each of the radial lines. The registration plate is attached to the base frame and spaced apart from the orientation plate. The registration plate includes a second set of radiopaque markers arranged along a circle.