ULTRASOUND TO 3D REGISTRATION USING A-MODE SIGNALS

    公开(公告)号:US20250137971A1

    公开(公告)日:2025-05-01

    申请号:US18687584

    申请日:2021-11-11

    Applicant: Brainlab AG

    Inventor: Wei WEI Daniel MENA

    Abstract: In many medical applications, it is crucial to match or register two different image data with each other, for example live image data with previously obtained 3D image data. The present disclosure relates to registration of a 3D image dataset with (live) ultrasound data. Rather than reconstructing an image from the ultrasound data and registering the reconstructed image with the 3D image dataset, the approach of the present disclosure matches the ultrasound A mode signals output by an ultrasound transducer with simulated ultrasound A mode signals generated from the 3D image dataset.

    DETERMINING ELECTRODE ORIENTATION USING OPTIMIZED IMAGING PARAMETERS

    公开(公告)号:US20250114056A1

    公开(公告)日:2025-04-10

    申请号:US18865760

    申请日:2022-06-29

    Applicant: Brainlab AG

    Abstract: A computer-implemented method determines the position of a stimulation electrode. The method encompasses determination of the orientation of a medical stimulation electrode from medical image data showing an image of the electrode. A first scan is generated from which the position of the electrode is determined, and a second scan with optimized imaging parameters is generated using the same or a different imaging modality. The second scan shows a more precise image of the electrode and is used to determine the rotational orientation of the electrode along its longitudinal axis.

    DETERMINING A CONSENSUS PLANE FOR IMAGING A MEDICAL DEVICE

    公开(公告)号:US20250017667A1

    公开(公告)日:2025-01-16

    申请号:US18903165

    申请日:2024-10-01

    Applicant: Brainlab AG

    Abstract: A computer-implemented method of determining a consensus plane usable for imaging an anatomical body part with a medical imaging device. The method involves acquiring patient image data that describes an anatomical body part; acquiring planned trajectory data; determining initial imaging plane data of the medical imaging device based on the planned trajectory data; acquiring imaging device constraint data; and acquiring orientation condition data that describes a predetermined condition to be met. The method further includes determining consensus plane data based on the imaging device constraint data and the initial imaging plane data and the orientation condition data; and acquiring avoidance region position data that describes a position of an avoidance region which shall at least substantially not be intersected by imaging radiation during the imaging. The determining consensus plane data is further based on the avoidance region position data.

    COMPUTER-IMPLEMENTED MEDICAL METHOD OF IRRADIATION (RT) TREATMENT PLANNING

    公开(公告)号:US20250001207A9

    公开(公告)日:2025-01-02

    申请号:US17912164

    申请日:2021-09-17

    Applicant: Brainlab AG

    Abstract: Provided is a computer-implemented medical method of irradiation treatment planning that includes an algorithm, which calculates irradiation treatment plans and at the same time considers the combination of the deliverability of the calculated RT plans, the relevancy of the calculated RT plans, and a reasonably distinctiveness between said calculated plans regarding their respective 3D dose distribution. The method automatically calculates and automatically pre-selects some of the calculated plans in steps S1 to S4, which can then be provided to the user. Moreover, in step S5 the method provides a beneficial way of automatically grouping together plans, such as by sorting the calculated and pre-selected plans. By visualizing these automatically calculated, pre-selected and grouped plans in a particular way to the user, the final plan selection by the user is facilitated in a fast, reliable and medically safe manner.

    ATLAS-BASED TRAJECTORY PLANNING
    5.
    发明申请

    公开(公告)号:US20250000583A1

    公开(公告)日:2025-01-02

    申请号:US18276824

    申请日:2022-02-17

    Applicant: Brainlab AG

    Abstract: Disclosed is a computer-implemented method of planning a straight trajectory in a medical image of an anatomical structure. A template of the straight trajectory is given in an atlas and the atlas is registered with the medical image. The atlas is divided into a first area and one or more second areas, wherein the first area comprises the straight trajectory and the one or more second areas do not comprise any part of the straight trajectory. When the transformation of the atlas onto the medical image is calculated, the first and second areas are treated differently. The transformation of the first area maintains the straight shape of the trajectory and is thus restricted. The transformation of the one or more second areas is unrestricted and thus allows any kind of image registration. The template of the transformed atlas is the applied to the medical image.

    TRAINING A MACHINE LEARNING ALGORITHM USING DIGITALLY RECONSTRUCTED RADIOGRAPHS

    公开(公告)号:US20240386603A1

    公开(公告)日:2024-11-21

    申请号:US18786398

    申请日:2024-07-26

    Applicant: Brainlab AG

    Abstract: Disclosed is a computer-implemented method of training a likelihood-based computational model for determining the position of an image representation of an annotated anatomical structure in a two-dimensional x-ray image, wherein the method encompasses inputting medical DRRs together with annotation to a machine learning algorithm to train the algorithm, i.e. to generate adapted learnable parameters of the machine learning model. The annotations may be derived from metadata associated with the DRRs or may be included in atlas data which is matched with the DRRs to establish a relation between the annotations included in the atlas data and the DRRs. The thus generated machine learning algorithm may then be used to analyse clinical or synthesized DRRs so as to appropriately add annotations to those DRRs and/or identify the position of an anatomical structure in those DRRs.

    PATTERNED INCISION FOIL AND METHOD FOR DETERMINING A GEOMETRY OF AN ANATOMICAL SURFACE

    公开(公告)号:US20240362811A1

    公开(公告)日:2024-10-31

    申请号:US18764814

    申请日:2024-07-05

    Applicant: Brainlab AG

    CPC classification number: G06T7/60 A61B46/20 A61B2046/205 G06T2207/30004

    Abstract: Disclosed is an incision foil made of a sterile, thin adhesive plastic film with a defined pattern printed on it (e.g. a fine grid pattern) which can be stuck e.g. on a patient's skin surface and which marks the anatomical region of interest. Using a camera, images are acquired of the attached film and the deformation of the pattern is digitized. With a computer vision algorithm the surface of the patient, which corresponds to the surface of the film, is reconstructed from the detected pattern features in the images in comparison to the known original undeformed pattern. Disclosed is also a method for determining a geometry of the surface of the patient using the incision foil.

    Determination of dynamic DRRs
    8.
    发明授权

    公开(公告)号:US12118648B2

    公开(公告)日:2024-10-15

    申请号:US18309968

    申请日:2023-05-01

    Applicant: Brainlab AG

    Abstract: 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.

    Compartmentalized dynamic atlas
    9.
    发明授权

    公开(公告)号:US12112845B2

    公开(公告)日:2024-10-08

    申请号:US17281644

    申请日:2018-11-07

    Applicant: Brainlab AG

    Abstract: A compartmentalized dynamic anatomic atlas is disclosed, comprising static atlas data comprising spatial element data and element representation data, wherein the spatial element data describes spatial properties of a spatial atlas element and wherein the element representation data describes representational properties assignable to the spatial atlas element, the atlas further comprising dynamic atlas data comprising information on a dynamic property which information is respectively linked to the spatial atlas element.

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