Target Region Partitioning in Radiation Therapy for minimising Irradiation of Non-target Tissue

    公开(公告)号:US20180028837A1

    公开(公告)日:2018-02-01

    申请号:US15548059

    申请日:2015-10-15

    Applicant: Brainlab AG

    CPC classification number: A61N5/103 A61N5/1047 A61N2005/1087

    Abstract: Disclosed is a method for determining an irradiation trajectory for the movement of a treatment device for irradiating an anatomical structure with ionising treatment radiation, the method comprising steps ofacquiring medical image data describing a medical image of the anatomical structure; determining, based on the medical image data, image concavity data; acquiring predetermined concavity data; determining, based on the image concavity data and the predetermined concavity data, partition data; determining, based on the medical image data, partition boundary data; and determining, based on the partition boundary data, irradiation trajectory data.

    CBCT and X-ray combined setup with X-ray verification of patient positioning

    公开(公告)号:US09849308B2

    公开(公告)日:2017-12-26

    申请号:US14759905

    申请日:2013-01-09

    Applicant: Brainlab AG

    Abstract: The invention is directed to a data processing method for determining the consistency of registration of the position of a treatment body part to be treated by radiotherapy with a treatment beam arrangement of at least one position of a treatment beam issued by a treatment device, the treatment body part being a soft tissue part of an anatomical structure of a patient's body and the data processing method being constituted to be executed by a computer and comprising the following steps: g) acquiring CT data comprising predetermined CT information about a position of the treatment body part relative to a bony structure of the patient's body and about a first position of the bony structure relative to the treatment beam arrangement; h) acquiring x-ray data comprising x-ray information about a second position of the bony structure relative to the treatment beam arrangement; i) determining, based on the x-ray data and the CT data, bony structure position first transformation data comprising bony structure position first transformation information about a first transformation between the first position and the second position of the bony structure; j) acquiring CBCT data comprising CBCT information about the position of the treatment body part relative to the treatment beam arrangement or relative to the bony structure; k) determining, based on the CBCT data and the CT data, bony structure position second transformation data comprising bony structure position second transformation information about a second transformation between the first position and a third position of the bony structure relative to the treatment beam arrangement; determining, based on the bony structure position first transformation data and the bony structure position second transformation data, transformation difference data comprising transformation difference information about a difference between the first and second transformations.

    Method and device for determining a transformation between two images of an anatomical structure

    公开(公告)号:US09836837B2

    公开(公告)日:2017-12-05

    申请号:US15100965

    申请日:2013-12-02

    Applicant: Brainlab AG

    CPC classification number: G06T7/0012 G06K9/6202 G06T7/344 G06T2207/30061

    Abstract: An image transformation method, performed by a computer, for determining a transformation between two medical images of an anatomical structure, respectively taken at a first and second point in time, said method comprising the steps of: acquiring first and second image datasets which represent the first and second image, respectively; determining an image-based transformation between the first image and the second image; acquiring an elastic model of the anatomical structure at the first point in time, wherein the elastic model comprises a plurality of nodes and the relationships between the nodes; calculating the displacements of a subset of the nodes in accordance with the image-based transformation; calculating the displacements of the other nodes in accordance with the relationships between the nodes as represented by the elastic model, while keeping the displacements of the nodes in the subset of nodes constant; and calculating the transformation from the displacement vectors which represent the displacements of the nodes as compared to their positions at the first point in time.

    UTILIZATION OF A TRANSPORTABLE CT-SCANNER FOR RADIOTHERAPY PROCEDURES

    公开(公告)号:US20170340902A1

    公开(公告)日:2017-11-30

    申请号:US15534049

    申请日:2015-06-25

    Applicant: Brainlab AG

    Abstract: The present application relates to a data processing method for determining the position of a soft tissue body part within a patient's body. The data processing method includes acquiring CT-image data including information about the position of the body part within a coordinate system assigned to a transportable CT-device, wherein the patient's body is positioned relative to the treatment device, and wherein the CT-device is configured to be positioned relative to the patient's body and/or relative to the treatment device, acquiring first transformation data including information about a first transformation between the coordinate system assigned to the CT-device and a coordinate system assigned to the treatment device, and determining, based on the CT-image data and the first transformation data, position data including information about the position of the body part within the coordinate system assigned to the treatment device.

    Removing image distortions based on movement of an imaging device

    公开(公告)号:US09818175B2

    公开(公告)日:2017-11-14

    申请号:US14652290

    申请日:2012-12-17

    Applicant: Brainlab AG

    Abstract: A data processing method of determining a transformation for transforming medical image data into a positional reference system, the method being executed by a computer and comprising the following steps: a) acquiring reference position data comprising reference position information describing a reference position of a medical imaging apparatus in an imaging apparatus reference system; b) acquiring imaging geometry data comprising imaging geometry information describing an imaging geometry of the medical imaging apparatus; c) acquiring actual position data comprising actual position information describing different actual positions of the medical imaging apparatus in an imaging apparatus reference system, wherein the medical imaging apparatus takes the actual positions for acquiring medical image data comprising medical image information describing an image of the anatomical region of the patient's body at each of the actual positions; d) determining, based on the reference position data and the imaging geometry data and the actual position data, medical image transformation data comprising medical image transformation information describing a medical image transformation between the actual position of the medical imaging and the reference position.

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