Deformity-weighted registration of medical images

    公开(公告)号:US11928828B2

    公开(公告)日:2024-03-12

    申请号:US17603280

    申请日:2019-05-28

    Applicant: Brainlab AG

    Inventor: Sebastian Stopp

    Abstract: Disclosed is a computer-implemented method of determining a spatial relationship between planning image data and current surface data which leads to improved surface registration accuracy by considering the elasticity and deformability of the tissue. The knowledge about the tissue can be estimated based on type of tissue and atlas information. For the process of generating surface registration points on specific anatomical regions, e.g. the face or forehead, are acquired with a classical navigated pointer or laser pointer. It is also possible to acquire points with surface scanners. Confidence values defining a probability for certain parts of the surface registration points being deformed in comparison to a planning image are read from atlas data and used to compensate for the deformation in the registration between the surface registration points and the planning image in order to render the registration valid.

    METHOD FOR INSTRUMENT CALIBRATION UPDATE
    132.
    发明公开

    公开(公告)号:US20240074815A1

    公开(公告)日:2024-03-07

    申请号:US18269025

    申请日:2021-01-15

    Applicant: Brainlab AG

    Inventor: Martin KÖSTLER

    CPC classification number: A61B34/20 A61B90/39 A61B2034/2065 A61B2090/3937

    Abstract: A computer-implemented method updates a calibration of a multi-component medical system, wherein a modified spatial relation between a first and a second section of interest of a modified system setup is determined as a function of an initial spatial relation between a first and a second section of interest of an initial system setup, particularly wherein at least one component of the initial setup of the medical system may remain in the modified setup of the medical system.

    COMPUTER IMPLEMENTED METHOD FOR AUGMENTED REALITY SPINAL ROD PLANNING AND BENDING FOR NAVIGATED SPINE SURGERY

    公开(公告)号:US20240058064A1

    公开(公告)日:2024-02-22

    申请号:US18271305

    申请日:2021-01-29

    Applicant: Brainlab AG

    Abstract: Disclosed is a computer-implemented method for augmented reality spinal rod planning and bending for navigated spine surgery. A proposed spinal rod is determined that is a virtual model of a spinal rod with a desired shape. The proposed spinal rod is determined based on acquired positions of a plurality of spinal screws disposed on a spine of a patient. The spinal screws are configured for receiving a spiral rod interconnecting the plurality of spinal screws. Furthermore, the spinal rod itself is calibrated for tracking by a medical navigation device. This allows displaying the proposed spinal rod by an augmented reality device, thereby overlaying the tracked spinal rod with the proposed spinal rod. Thus, the proposed method inter alia provides the surgeon with improved information about the bending state of the spinal rod.

    Tracking reference fixation support
    137.
    发明授权

    公开(公告)号:US11864884B2

    公开(公告)日:2024-01-09

    申请号:US15566962

    申请日:2016-05-20

    Applicant: Brainlab AG

    Abstract: A tracking reference fixation support configured to fasten a medical tracking reference to a patient's head, the fixation support comprising an elastically deformable base-plate having a bottom surface, the base-plate being configured to rest via the bottom surface against the surface of a patient's head; an interface-plate providing an interface for rigidly attaching a medical tracking reference to the fixation support; and at least one joint that couples the interface-plate to the base-plate, which allows the base-plate to deform while the interface-plate remains substantially dimensionally stable. The invention further relates to a corresponding tracking reference headband and to a corresponding method of providing a patient's head with a tracking reference.

    DETECTION OF FOREIGN OBJECTS IN INTRAOPERATIVE IMAGES

    公开(公告)号:US20230410308A1

    公开(公告)日:2023-12-21

    申请号:US18038459

    申请日:2021-01-12

    Applicant: Brainlab AG

    Abstract: The disclosed computer-implemented method of detecting at least one foreign object in one or more intraoperative images encompasses the provision and use of one or more intraoperative images, which are compared to expected image content. This also includes particularly the use of live intraoperative video data that are acquired and used in the computer-implemented method defined herein. The method further encompasses the creation, i.e. the calculation and or provision, of expected image content based on several different inputs. Such creation of expected image content can be based on e.g. data associated with the patient's body undergoing a medical procedure, parameters that are indicative of said medical procedure, and/or imaging parameters of the individual imaging device used to generate said one or more intraoperative images. In a further step, a comparison between the expected image content and the one or more acquired intraoperative images is conducted, preferably using an image and/or video analysis algorithm for analyzing the at least one acquired intraoperative image and for automatically detecting the at least one foreign object in the intraoperative image.

    REAL TIME AUGMENTATION
    140.
    发明公开

    公开(公告)号:US20230276016A1

    公开(公告)日:2023-08-31

    申请号:US18019417

    申请日:2020-08-07

    Applicant: Brainlab AG

    Abstract: A computer-implemented method of generating an overlay of medical video data and overlay data is presented. The method comprising the steps acquiring, from a medical video modality, the medical video data comprising at least a first video frame and a second video frame of different points in time, t1 and t2, (step S1), analysing the acquired medical video data comprising a comparison of the video data captured by the first and the second video frames (step S2); providing initial overlay data (step S3), generating modified overlay data by adapting the initial overlay data based on a result of the analysis of the medical video data (step S4), and generating the overlay by generating a video output comprising at least medical video data originating from the medical video modality and comprising the generated modified overlay data (step S5). In a particular embodiment, the determined change over time in the first and second video frames is a spatial shift of an object imaged in the video frames.

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