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公开(公告)号：US10448905B2
公开(公告)日：2019-10-22
申请号：US16058674
申请日：2018-08-08
Applicant: Brainlab AG
Inventor： Kajetan Berlinger , Stephan Froehlich , Eva Maria Gronbach
IPC: A61B6/04 , G06T7/00 , A61N5/10 , G01T7/00 , G06K9/62 , G06K9/00 , G06K9/20 , G06K9/32 , G06T7/73 , A61B90/00 , A61B6/03 , A61B6/00 , A61B34/20 , A61B90/10 , A61B90/14 , G06F19/00
Abstract: The presently described method is directed to determining a way of positioning a patient before execution of a medical procedure involving irradiating the patient with ionizing treatment radiation based on comparing medical images of the patient with a pre-acquired medical image. The planning computed tomography is searched for an image of the reference structure in order to determine the position of the patient relative to a patient support device. A retroreflective marker device, having a known and advantageously fixed position relative to the base plate, is detected by a navigation system operatively coupled to a motor of the support device. Based on the detected position of the marker device, the motor of the support device is activated to drive the patient into a desired position relative to beam direction along which the treatment radiation is to be issued towards the patient to execute the medical procedure.
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公开(公告)号：US10384082B2
公开(公告)日：2019-08-20
申请号：US15543068
申请日：2016-07-29
Applicant: Brainlab AG
Inventor： Kajetan Berlinger , Stephan Fröhlich
IPC: A61N5/10
Abstract: Disclosed is a method for determining a deviation of the position of an anatomical body part relative to a predetermined position defined by a radiation treatment plan. A monitoring image is taken of the anatomical body part at the instant that a predetermined control point defined in the treatment plan has been reached. The monitoring image is compared to a simulated image simulated from a planning image of the anatomical body from the perspective of a monitoring camera used to generate the monitoring image. The comparison allows for a determination of whether there is a positional deviation.
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公开(公告)号：US20170368369A1
公开(公告)日：2017-12-28
申请号：US15544941
申请日：2016-11-17
Applicant: Brainlab AG
Inventor： Steffen Heinrich , Kajetan Berlinger , Milos Maric , Christian Spika
CPC classification number: A61N5/1049 , A61B6/022 , A61B6/12 , A61B6/5264 , A61N2005/1061 , G06T7/246 , G06T7/251 , G06T7/75 , G06T2207/10012 , G06T2207/10048 , G06T2207/10116 , G06T2207/30004 , G06T2207/30204
Abstract: A data processing method for determining the position of a target, comprising the steps performed by a computer: a) acquiring a target movement model specifying a movement cycle of the target; b) acquiring a target position signal representing a view of the target from a single direction and/or provided by a single imager; c) determining, based on the acquired target position signal and the target movement model, the position of the target.
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34.发明申请公开(公告)号：US20170216626A1
公开(公告)日：2017-08-03
申请号：US15328470
申请日：2014-07-30
Applicant: Brainlab AG
Inventor： Kajetan Berlinger , Hagen Kaiser
CPC classification number: A61N5/1049 , A61N5/1037 , A61N2005/105 , G06T7/33 , G06T7/521 , G06T2207/10012 , G06T2207/10028 , G06T2207/30088
Abstract: A medical data processing method for tracking the position of a body surface of a patient's body, the method comprising determining, based on initial surface reflection data and reflection pattern registration data, body surface movement data describing whether the body surface has undergone a movement.
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公开(公告)号：US20170065832A1
公开(公告)日：2017-03-09
申请号：US15121763
申请日：2014-02-26
Applicant: Brainlab AG
Inventor： Kajetan Berlinger , Stephan Froehlich
CPC classification number: A61N5/1049 , A61B6/022 , A61B6/032 , A61B6/487 , A61B6/5223 , A61B6/5235 , A61B6/5264 , A61B6/5288 , A61B6/541 , A61N5/1067 , A61N5/1068 , A61N5/107 , A61N2005/1061 , G06K9/6202 , G06T7/0014 , G06T7/11 , G06T7/248 , G06T7/73 , G06T2207/10021 , G06T2207/10081 , G06T2207/10124 , G06T2207/20104 , G16H50/50
Abstract: The present disclosure is directed to a system, method and apparatus for tracking an anatomical body part in a series of x-ray images. The anatomical body part moves due to a vital movement, such as breathing motion of the thorax. The anatomical body part is defined in a CT image acquired beforehand and is associated with a known movement phase during the vital movement. The series of x-ray images of the moving anatomical body part is taken. The movement phase associated with each one of the x-ray images is determined. In one implementation, the system may track the body part movement using external infrared-reflecting markers and a navigation system while taking a series of x-ray images and time-stamping the x-ray images and the positional information for the body part. The time stamps relate each one of the x-ray images with a specific movement phase of the body part. The specific x-ray image being associated with the same movement phase as the CT image is determined and the representation of the anatomical body part defined in the CT image can be determined in the x-ray image by comparing the CT image with the specific x-ray image. The specific x-ray image may be compared to the other x-ray images to find the anatomical body part in those x-ray images and preferably highlight it to be easily recognized by a user.
Abstract translation: 本公开涉及用于跟踪一系列X射线图像中的解剖体部分的系统，方法和装置。 由于重要的运动，例如胸部呼吸运动，解剖体部分移动。 解剖体部分被定义在事先获得的CT图像中，并且在重要运动期间与已知的运动相关联。 拍摄移动的解剖体部分的一系列X射线图像。 确定与每个X射线图像相关联的移动阶段。 在一个实施方案中，系统可以使用外部红外反射标记和导航系统跟踪身体部位运动，同时采取一系列X射线图像和时间戳X射线图像和身体部位的位置信息。 时间戳将身体部位的特定运动阶段的每个X射线图像相关联。 确定与CT图像相同的运动相位的特定X射线图像，并且可以在X射线图像中通过将CT图像与特定x比较来确定在CT图像中定义的解剖体部分的表示 -ray图像。 可以将特定的X射线图像与其他x射线图像进行比较，以在那些X射线图像中找到解剖体部分，并且优选地突出显示它以便用户容易地识别。
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Patent Agency Ranking
公开(公告)号：US11794035B2
公开(公告)日：2023-10-24
申请号：US17046077
申请日：2019-08-13
Applicant: Brainlab AG
Inventor： Kajetan Berlinger , Hagen Kaiser , Michael Stead
CPC classification number: A61N5/1049 , A61B6/488 , A61N2005/1059
Abstract: The present invention relates to a computer-implemented medical method for monitoring a spatial position of a patient's body part, wherein at least one optimum spatial direction for a line of sight of a check x-ray-image is determined, that qualifies for quantifying a deviation of the spatial position of the patient's body part from a target spatial position for the patient's body part. The present invention further relates to a corresponding computer program and a corresponding medical system.
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公开(公告)号：US11669982B2
公开(公告)日：2023-06-06
申请号：US17352683
申请日：2021-06-21
Applicant: Brainlab AG
Inventor： Kajetan Berlinger , Birte Domnik
CPC classification number: G06T7/285 , A61N5/103 , G06T7/0012 , G06T7/74 , G06T11/006 , G06T2207/10088 , G06T2207/10124 , G06T2207/30096
Abstract: 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.
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公开(公告)号：US11511131B2
公开(公告)日：2022-11-29
申请号：US16537886
申请日：2019-08-12
Applicant: Brainlab AG
Inventor： Kajetan Berlinger , Michael Stead
IPC: A61N5/10
Abstract: Disclosed is a computer-implemented method which encompasses comparing the requirements for radiation therapy imposed by a patient's individual condition to the capabilities and requirements of different types of treatment machines to determine a suitable radiation treatment strategy including an identification of the treatment machine which shall be used and a treatment plan. Furthermore, a treatment plan is generated by simulating the envisaged radiation treatment. The type of treatment machine associated with a predetermined value for the sum of weights for all fields assigned to that treatment machine is determined as the treatment machine for treating the patient, and corresponding information is output detailing the treatment specifics such as radiation treatment parameters specifically suited for the patient target region tumor thereby reducing radiation exposure, efficient use of the machine and appropriate gating and tracking modes.
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公开(公告)号：US11227417B2
公开(公告)日：2022-01-18
申请号：US17010254
申请日：2020-09-02
Applicant: Brainlab AG
Inventor： Kajetan Berlinger , Birte Domnik , Elisa Garcia Corisco , Pascal Bertram
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.
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公开(公告)号：US20210213304A1
公开(公告)日：2021-07-15
申请号：US16070112
申请日：2017-06-13
Applicant: Brainlab AG
Inventor： Birte Domnik , Kajetan Berlinger
Abstract: 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.
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