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    DETERMINATION OF REGISTRATION ACCURACY
    3.
    发明公开
    DETERMINATION OF REGISTRATION ACCURACY 有权

    公开(公告)号：EP3391332A1

    公开(公告)日：2018-10-24

    申请号：EP15813790.1

    申请日：2015-12-16

    申请人： Brainlab AG

    发明人： BERTRAM, Pascal ,  IVANOVSKA, Ivana ,  CORSICO, Elisa Garcia ,  DOMNIK, Birte

    IPC分类号： G06T7/00 ,  G06T3/00

    摘要： A medical data processing method, performed by a computer (2), for determining error analysis data describing the registration accuracy of a first elastic registration between first and second image data (A, B) describing images of an anatomical structure of a patient, comprising the steps of: —acquiring the first image data (A) describing a first image of the anatomical structure, —acquiring the second image data (B) describing a second image of the anatomical structure, —determining first registration data describing a first elastic registration of the first image data (A) to the second image data (B) by mapping the first image data (A) to the second image data (B) using a registration algorithm, —determining second registration data describing a second elastic registration of the second image data (B) to the first image data (A) by mapping the second image data (B) to the first image data (A) using the registration algorithm, —determining error analysis data describing the registration accuracy of the first elastic registration based on the first registration data and the second registration data.

    SOFT TISSUE STEREO-TRACKING
    6.
    发明公开
    SOFT TISSUE STEREO-TRACKING 有权

    公开(公告)号：EP3497670A1

    公开(公告)日：2019-06-19

    申请号：EP17790976.9

    申请日：2017-10-09

    申请人： Brainlab AG

    发明人： BERLINGER, Kajetan ,  DOMNIK, Birte

    IPC分类号： G06T7/285 ,  G06T7/73

    摘要： The disclosed method encompasses reconstruction of a three-dimensional position of a tracking structure (which may comprise a target of radiation treatment) as reconstructed tracking structure data from pairs of two-dimensional tracking images which are input as tracking image data. Each tracking image contained in a pair of tracking images is compared to a tracking representation of the tracking structure contained in a search template image generated from the same perspective onto the tracking structure as the associated tracking image and input as search template data. The tracking image having the highest at local degree of similarity to its associated search template image is selected as a starting point (the first tracking image) for computing a corresponding image position (a complement point) in the other tracking image (the second tracking image) on the basis of applying epipolar geometry outgoing from the position in the first tracking image associated with the highest local degree of similarity. The method then continues with determining whether there is a point in the second tracking image having a higher degree of similarity than the complement point. Depending on the result of this analysis, an accumulated value of similarity is determined for each pair of tracking images depending on the sum of similarity values of the maximum similarity points in the first and second tracking images so determined. The position of the tracking structure is determined as the intersection of back-projection lines of the points being associated with the highest sum of associated similarity values. Thereby, the reliability of position determination from stereoscopic two-dimensional x-ray images can be enhanced.

    SOFT TISSUE TRACKING USING PHYSIOLOGIC VOLUME RENDERING
    8.
    发明公开
    SOFT TISSUE TRACKING USING PHYSIOLOGIC VOLUME RENDERING 审中-公开

    公开(公告)号：EP3468668A1

    公开(公告)日：2019-04-17

    申请号：EP18723817.5

    申请日：2018-05-09

    申请人： Brainlab AG

    发明人： BERLINGER, Kajetan ,  DOMNIK, Birte

    IPC分类号： A61N5/10 ,  A61B34/20 ,  A61B90/00

    摘要： The present invention relates to a computer-implemented medical method for improving the suitability of a tracking structure for tracking by tessellating the tracking structure into a plurality of sub-tracking structures. The invention also relates to a computer configured to execute a program corresponding to the method and a medical system for improving the suitability of a tracking structure for tracking, the system including the aforementioned computer.

    BINARY TRACKING ON MEDICAL IMAGES
    9.
    发明公开
    BINARY TRACKING ON MEDICAL IMAGES 审中-公开

    公开(公告)号：EP3433862A1

    公开(公告)日：2019-01-30

    申请号：EP17729862.7

    申请日：2017-06-13

    申请人： Brainlab AG

    发明人： DOMNIK, Birte ,  BERLINGER, Kajetan

    IPC分类号： G16H20/40

    CPC分类号： G16H20/40 ,  A61B6/00 ,  A61B6/5205

    摘要： Disclosed is a computer-implemented method for determining the position of an anatomical tracking structure in a tracking image usable for controlling radiation treatment such as at least one of radiotherapy or radio surgery of a patient, a corresponding computer program, a non-transitory program storage medium storing such a program and a computer for executing the program, as well as a system for the position of an anatomical tracking structure in a tracking image usable for controlling radiation treatment such as at least one of radiotherapy or radio surgery of a patient, the system comprising an electronic data storage device and the aforementioned computer.