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公开(公告)号：WO2017130140A1
公开(公告)日：2017-08-03
申请号：PCT/IB2017/050427
申请日：2017-01-27
Applicant: ELEKTA LTD.
Inventor： PISHDAD, Leila , BROOKS, Rupert Archie
CPC classification number: A61N5/1049 , A61N5/1037 , A61N5/1045 , A61N5/1048 , A61N5/1064 , A61N5/107 , A61N2005/1052 , A61N2005/1055 , A61N2005/1061 , A61N2005/1091
Abstract: A medical system includes a medical device and a controller. The medical device is controlled according to a control protocol. The controller is configured to receive a measured data set containing a current value at a current time and past values at past times of a physiologic signal measured on a recipient, calculate a difference signal at the current time based on the measured data set, and predict a difference value using the difference signal and a prediction algorithm. The difference value is a difference between a predicted future value of the physiologic signal at a future time and the current value. The controller is further configured to calculate the predicted future value based on the difference value and the current value and update the control protocol according to the predicted future value.
Abstract translation: 医疗系统包括医疗设备和控制器。 医疗设备根据控制协议进行控制。 控制器被配置为接收测量数据集，该测量数据集包含当前时间的当前值和过去时间的在接收者处测量的生理信号的过去值，基于测量的数据集计算当前时间的差值信号，并且预测 使用差信号的差值和预测算法。 差值是未来时间的生理信号的预测未来值与当前值之间的差值。 控制器还被配置为基于差值和当前值计算预测的未来值，并根据预测的未来值更新控制协议。
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公开(公告)号：WO2021026634A1
公开(公告)日：2021-02-18
申请号：PCT/CA2020/050401
申请日：2020-03-27
Applicant: ELEKTA LTD.
Abstract: Systems and methods are provided for registering images. The systems and methods perform operations comprising: receiving, at a first time point during a given radiation session, a first imaging slice comprising an object, the first imaging slice corresponding to a first plane; accessing, at the first time point during the given radiation session, a composite imaging slice corresponding to the first plane, the composite imaging slice being generated using a plurality of imaging slices obtained prior to the first time point; spatially registering the first imaging slice and the composite imaging slice; determining movement of the object using the spatially registered first imaging slice and the composite imaging slice; and generating an updated therapy protocol to control delivery of a therapy beam based on the determined movement.
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3.发明申请SYSTEM AND METHOD FOR TARGET TRACKING USING A QUALITY INDICATOR DURING RADIATION THERAPY 审中-公开辐射治疗期间使用质量指标的目标跟踪的系统和方法
公开(公告)号：WO2017001920A1
公开(公告)日：2017-01-05
申请号：PCT/IB2016/001029
申请日：2016-06-29
Applicant: ELEKTA LTD.
Inventor： BROOKS, Rupert
CPC classification number: A61N5/1084 , A61N5/1049 , A61N2005/1061 , G06F15/18 , G06F19/00 , G06N99/005 , G06T2207/20081 , G06T2207/30004 , G16H40/60
Abstract: Systems and methods are provided for target tracking using a quality indicator during radiation therapy treatment. An exemplary method may include determining a localization result indicating a location of a target in a plurality of images representative of images acquired in a radiation therapy treatment session. The method may also include determining a quality indicator for each localization result. The method may further include extracting one or more features from each localization result. In addition, the method may include training the classifier using the localization result and one or more of the extracted features.
Abstract translation: 在放射治疗期间使用质量指标提供系统和方法用于目标跟踪。 示例性方法可以包括确定指示在表示在放射治疗治疗会话中获取的图像的多个图像中的目标的位置的定位结果。 该方法还可以包括确定每个定位结果的质量指标。 该方法还可以包括从每个定位结果提取一个或多个特征。 此外，该方法可以包括使用定位结果和提取的特征中的一个或多个训练分类器。
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公开(公告)号：WO2020079409A1
公开(公告)日：2020-04-23
申请号：PCT/GB2019/052919
申请日：2019-10-14
Applicant: ELEKTA LTD.
Inventor： FLINT, Chris , RICHARDSON, Keith , JORDAO, Marcelo , CHIAP, Alessandra , HOLMES, Mark
Abstract: Described is a method of determining whether repair or replacement of an electron gun of a radiotherapy device should be scheduled. The radiotherapy device comprises a linear accelerator and is configured to provide therapeutic radiation to a patient. The radiotherapy device comprises a vacuum tube comprising the electron gun, a waveguide configured to accelerate electrons emitted by the electron gun toward a target to produce said radiation. The radiotherapy device comprises also comprises a current sensor, the current sensor being configured to provide signals indicative of current supplied to the electron gun. The method comprises receiving a current value, processing the current value, and based on the processing of the current value, determining whether repair or replacement of the electron gun should be scheduled. Processing the current value comprises determining whether the current value meets at least one threshold criterion, and determining whether the current value has changed by at least a threshold amount in a particular time period.
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公开(公告)号：WO2020073113A1
公开(公告)日：2020-04-16
申请号：PCT/CA2019/000144
申请日：2019-10-11
Applicant: ELEKTA LTD.
Inventor： LETOURNEAU, Daniel , CONNEELY, Elaine
Abstract: The present disclosure includes procedures to automate quality assurance testing for radiotherapy equipment that includes MR-Linac devices that are agnostic as to the manufacturer and vendor of the equipment. The present disclosure includes a process for performing a validation procedure for the linear accelerator of the MR-Linac device. The present disclosure includes a process for analyzing quality of the images produced by the MR imaging device of the MR-Linac device. The present disclosure includes a process for combining performance of a validation procedure for the linear accelerator of the MR-Linac device and the analysis of the quality of the images produced by the MR imaging device of the MR-Linac device.
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Patent Agency Ranking
公开(公告)号：WO2017137795A1
公开(公告)日：2017-08-17
申请号：PCT/IB2016/001613
申请日：2016-10-21
Applicant: ELEKTA LTD.
Inventor： LACHAINE, Martin, Emile
CPC classification number: G06T7/254 , A61N5/1045 , A61N5/1049 , A61N5/1064 , A61N5/1067 , A61N5/1068 , A61N5/107 , A61N2005/1055 , G06T2207/10016 , G06T2207/10081 , G06T2207/10088 , G06T2207/30096
Abstract: Systems and methods for managing motions of an anatomical region of interest of a patient during image-guided radiotherapy are disclosed. An exemplary system may include an image acquisition device, a radiotherapy device, and a processor device. The processor device may be configured to determine a primary plane of motion of the anatomical region of interest and determine a plurality of 2D slices parallel to the primary plane. The plurality of 2D slices may define a 3D volume substantially enclosing the anatomical region of interest. The processor device may also be configured to control the image acquisition device to acquire a plurality of 2D images based on the plurality of 2D slices and determine a motion of the anatomical region of interest based on at least a subset of the acquired plurality of 2D images. The processor device may be further configured to control radiation delivery based on the determined motion.
Abstract translation: 公开了用于在图像引导放射治疗期间管理患者的感兴趣解剖区域的运动的系统和方法。 示例性系统可以包括图像采集设备，放射治疗设备和处理器设备。 处理器装置可以被配置成确定感兴趣的解剖区域的主运动平面并且确定平行于主平面的多个2D切片。 多个2D切片可以限定基本上包围感兴趣解剖区域的3D体积。 处理器设备还可以被配置成控制图像采集设备基于多个2D切片获取多个2D图像，并且基于获取的多个2D图像的至少一个子集来确定感兴趣解剖区域的运动 。 处理器设备可以进一步被配置为基于所确定的运动来控制辐射输送。
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公开(公告)号：WO2021096492A1
公开(公告)日：2021-05-20
申请号：PCT/US2019/060940
申请日：2019-11-12
Applicant: ELEKTA, INC. , ELEKTA LTD.
Inventor： PENCEA, Stefan , HISSOINY, Sami
IPC: A61N5/10
Abstract: Systems and methods for generating a radiotherapy treatment plan using information about gantry angle-indexed dose (GAID) variation are discussed. An exemplary system can include an interface to receive a beam model for use in the radiation machine, and a processor that can determine, for the radiation machine, a GAID variation represented by a plurality of radiation doses at different gantry angles. The processor can determine a radiation treatment plan for the patient using the beam model and the GAID variation.
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公开(公告)号：WO2021081626A1
公开(公告)日：2021-05-06
申请号：PCT/CA2020/051357
申请日：2020-10-09
Applicant: ELEKTA LTD.
Inventor： FALCO, Tony , LACHAINE, Martin, Emile
IPC: A61N5/00
Abstract: Systems and methods are provided for performing operations comprising: generating a radiotherapy treatment plan for treating an ablation volume comprising a myocardial scar based on a first image of a patient that is generated using contrast-enhanced magnetic resonance (MR) imaging information; identifying, based on the first image of the patient, the ablation volume comprising the myocardial scar in a second image of the patient that is generated using MR imaging information without contrast; adjusting the radiotherapy treatment plan based on the ablation volume identified in the second image of the patient; acquiring a cine image of the patient during delivery of a radiotherapy treatment fraction by a radiotherapy treatment device based on the adjusted radiotherapy treatment plan; and comparing the cine image to the second image of the patient to control delivery of a radiotherapy beam by the radiotherapy treatment device.
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9.发明申请THREE DIMENSIONAL RESPIRATORY MOTION MANAGEMENT IN IMAGE-GUIDED RADIOTHERAPY 审中-公开影像引导放射治疗中的三维呼吸运动管理
公开(公告)号：WO2017134482A1
公开(公告)日：2017-08-10
申请号：PCT/IB2016/001601
申请日：2016-10-21
Applicant: ELEKTA LTD.
Inventor： LACHAINE, Martin, Emile
CPC classification number: G06T7/246 , A61N5/1045 , A61N5/1049 , A61N5/1064 , A61N5/1067 , A61N5/1068 , A61N5/107 , A61N2005/1055 , G06T7/0012 , G06T7/12 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104 , G06T2207/10108 , G06T2207/20076 , G06T2207/20116 , G06T2207/20161 , G06T2207/30084 , G06T2207/30096
Abstract: Systems and methods for managing motions of an anatomical region of interest of a patient during image-guided radiotherapy are disclosed. An exemplary system may include an image acquisition device, a radiotherapy device, and a processor device. The processor device may be configured to control the image acquisition device to acquire at least one 2D image. Each 2D image may include a cross-sectional image of the anatomical region of interest. The processor device may also be configured to perform automatic contouring in each 2D image to extract a set of contour elements segmenting the cross-sectional image of the anatomical region of interest in that 2D image. The processor device may be further configured to match the set of contour elements to a 3D surface image of the anatomical region of interest to determine a motion of the anatomical region of interest and to control radiation delivery based on the determined motion.
Abstract translation: 公开了用于在图像引导放射治疗期间管理患者的感兴趣解剖区域的运动的系统和方法。 示例性系统可以包括图像采集设备，放射治疗设备和处理器设备。 处理器设备可以被配置为控制图像采集设备以采集至少一个2D图像。 每个2D图像可以包括感兴趣解剖区域的横截面图像。 处理器装置还可以被配置为在每个2D图像中执行自动轮廓，以提取分割该2D图像中的感兴趣解剖区域的横截面图像的一组轮廓元素。 处理器装置可进一步经配置以将该组轮廓元素匹配到感兴趣的解剖区域的3D表面图像以确定感兴趣的解剖区域的运动且基于所确定的运动来控制辐射递送。
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公开(公告)号：WO2021026633A1
公开(公告)日：2021-02-18
申请号：PCT/CA2020/050400
申请日：2020-03-27
Applicant: ELEKTA LTD.
Inventor： LACHAINE, Martin Emile , BÉRIAULT, Silvain
Abstract: Systems and methods are provided for registering images. The systems and methods perform operations comprising: receiving, at a first time point in a given radiation session, a first imaging slice corresponding to a first plane; encoding the first imaging slice to a lower dimensional representation; applying a trained machine learning model to the encoded first imaging slice to estimate an encoded version of a second imaging slice corresponding to a second plane at the first time point to provide a pair of imaging slices for the first time point; simultaneously spatially registering the pair of imaging slices to a volumetric image, received prior to the given radiation session, comprising a time-varying object to calculate displacement of the object; and generating an updated therapy protocol to control delivery of a therapy beam based on the calculated displacement of the object.
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