公开(公告)号：EP3315170A2

公开(公告)日：2018-05-02

申请号：EP17194941.5

申请日：2017-10-05

申请人： Elekta AB (PUBL)

发明人： Pencea, Corneliu ,  Harasimowicz, Janusz ,  Marinos, Nikolas ,  Byrne, Julian

IPC分类号： A61N5/10 ,  G01T1/29

摘要： A method for the measurement of dose distribution in radiotherapy apparatus comprising an apparatus for generating a beam of therapeutic radiation and an imaging apparatus, one or both apparatuses being mounted to a rotatable gantry adapted in use to rotate around a bore of the radiotherapy apparatus and around an isocentre therein, the method comprising: placing a detector holder within a tank, the detector holder comprising a radio-opaque marker and a visual reference point, the marker and the reference point being separated and in a fixed spatial relationship to each other, and the tank in use containing a liquid having a surface level uppermost; locating the tank within the bore such that the detector holder is in the vicinity of the isocentre; rotating the gantry and monitoring the position of the detector holder using the imaging apparatus to determine the position of the marker relative to the isocentre; displacing the detector holder vertically such that the reference point is positioned at a point level with a desired surface level of the liquid, and adding liquid to or removing liquid from the tank until the surface of the liquid is at the same level as the reference point. Features of the detector holder and tank are also described.

摘要翻译： 一种用于测量辐射治疗设备中的剂量分布的方法，该方法包括用于产生治疗辐射束的设备和成像设备，一个或两个设备安装在可旋转机架上，该机架适合用于围绕放射治疗设备的孔旋转并围绕 所述方法包括：将检测器保持器放置在罐中，所述检测器保持器包括不透射线的标记和视觉参考点，所述标记和所述参考点彼此分离并且彼此固定的空间关系，以及 使用中的罐包含具有最高表面水平的液体; 将所述罐定位在所述孔内，使得所述检测器保持器位于所述等中心附近; 旋转机架并使用成像装置监测检测器支架的位置以确定标记相对于等中心的位置; 垂直地移动探测器支架，使得参考点位于具有期望的液体表面水平的点水平面上，并且将液体添加到水箱或从水箱移除液体，直到液体的表面与参考点处于相同水平 。 还介绍了探测器支架和水箱的特点。

公开(公告)号：EP3315170A3

公开(公告)日：2018-06-20

申请号：EP17194941.5

申请日：2017-10-05

申请人： Elekta AB (PUBL)

发明人： Pencea, Corneliu ,  Harasimowicz, Janusz ,  Marinos, Nikolas ,  Byrne, Julian

IPC分类号： A61N5/10 ,  G01T1/29

摘要： A method for the measurement of dose distribution in radiotherapy apparatus comprising an apparatus for generating a beam of therapeutic radiation and an imaging apparatus, one or both apparatuses being mounted to a rotatable gantry adapted in use to rotate around a bore of the radiotherapy apparatus and around an isocentre therein, the method comprising: placing a detector holder within a tank, the detector holder comprising a radio-opaque marker and a visual reference point, the marker and the reference point being separated and in a fixed spatial relationship to each other, and the tank in use containing a liquid having a surface level uppermost; locating the tank within the bore such that the detector holder is in the vicinity of the isocentre; rotating the gantry and monitoring the position of the detector holder using the imaging apparatus to determine the position of the marker relative to the isocentre; displacing the detector holder vertically such that the reference point is positioned at a point level with a desired surface level of the liquid, and adding liquid to or removing liquid from the tank until the surface of the liquid is at the same level as the reference point. Features of the detector holder and tank are also described.

公开(公告)号：EP2938169B1

公开(公告)日：2017-08-23

申请号：EP15164871.4

申请日：2015-04-23

申请人： Elekta AB (publ)

发明人： Harasimowicz, Janusz ,  Shinton, Ian

IPC分类号： H05H7/22 ,  H05H9/04

CPC分类号： H05H7/22 ,  H05H7/02 ,  H05H9/00 ,  H05H9/048 ,  H05H2007/025 ,  H05H2007/227 ,  H05H2277/11

公开(公告)号：EP2865419B1

公开(公告)日：2019-03-06

申请号：EP14188422.1

申请日：2014-10-10

申请人： Elekta AB (Publ)

发明人： Brown, Kevin ,  Roberts, David ,  Harasimowicz, Janusz ,  Sell, Martin ,  Byrne, Julian ,  Fuerst, Armin

IPC分类号： A61N5/10

公开(公告)号：EP2865419A1

公开(公告)日：2015-04-29

申请号：EP14188422.1

申请日：2014-10-10

申请人： ELEKTA AB (publ.)

发明人： Brown, Kevin ,  Roberts, David ,  Harasimowicz, Janusz ,  Sell, Martin ,  Byrne, Julian ,  Fuerst, Armin

IPC分类号： A61N5/10

CPC分类号： A61B6/584 ,  A61B6/582 ,  A61B6/583 ,  A61B2560/0228 ,  A61N5/1048 ,  A61N5/1049 ,  A61N5/1075 ,  A61N2005/1052 ,  A61N2005/1055 ,  A61N2005/1076

摘要： A method of aligning the radiation beam in a radiotherapy system comprising a source for producing a beam of radiation and a device for imaging from the beam, both mounted so as to be rotatable about an axis using a fiducial phantom between the source and the device, the method comprising: rotating the beam and device in a trajectory about the axis while obtaining a plurality of images of the fiducial phantom from a plurality of different angles, determining from each image of the fiducial phantom the position of the source at the rotational position the image was obtained, and calculating the centre of rotation of the positions of the source to define the isocentre of the system. The invention enables the alignment of a collimator with the source of radiation, the reduction of asymmetry in beam intensity, and is also applicable to magnetic resonance-guided radiotherapy.

摘要翻译： 一种在放射治疗系统中对准辐射束的方法，该放射治疗系统包括用于产生辐射束的源和用于从束成像的装置，两者被安装成可以在源和装置之间使用基准体模绕轴旋转， 该方法包括：在从多个不同的角度获得基准体模的多个图像的同时围绕轴线的轨迹旋转光束和设备，从基准体模的每个图像确定源在旋转位置处的位置， 获得图像，并计算源的位置的旋转中心以定义系统的等中心。 本发明使得准直器与辐射源的对准，光束强度的不对称性的降低，并且也适用于磁共振引导放射治疗。

公开(公告)号：EP3315170B1

公开(公告)日：2020-04-15

申请号：EP17194941.5

申请日：2017-10-05

申请人： Elekta AB (Publ)

发明人： Pencea, Corneliu ,  Harasimowicz, Janusz ,  Marinos, Nikolas ,  Byrne, Julian

IPC分类号： A61N5/10 ,  G01T1/29

公开(公告)号：EP2938169A1

公开(公告)日：2015-10-28

申请号：EP15164871.4

申请日：2015-04-23

申请人： Elekta AB (publ)

发明人： Harasimowicz, Janusz ,  Shinton, Ian

IPC分类号： H05H7/22 ,  H05H9/04

CPC分类号： H05H7/22 ,  H05H7/02 ,  H05H9/00 ,  H05H9/048 ,  H05H2007/025 ,  H05H2007/227 ,  H05H2277/11

摘要： A linear accelerator is disclosed, having a series of interconnected cavities through at least some of which an rf signal and an electron beam are sent, comprising at least one variable coupler projecting into a cavity of the series, a control apparatus adapted to interpret an electrical signal from the coupler and derive diagnostic information as to the electron beam therefrom, wherein the control apparatus is further adapted to vary the interaction of the at least one coupler with the rf signal in dependence on the diagnostic information. Thus, the accelerator properties can be adjusted by encouraging or inciting an Higher-Order Mode ("HOM") having a desired effect such as bunching and/or deflecting. The coupler could be rotateable, and partially or fully retractable, to allow its influence to be adjusted and/or for it to be removed from service when not needed. Several such probes could be available, approaching the cavity from different directions or at different locations, or approaching different cavities. The coupler can be asymmetric, in order to exert an appropriate influence on the cavity and provoke a useful HOM. For example, it can be elongate with at least one directional deviation, such as a hockey stick. Generally, however, the appropriate shape for the coupler will be dependent on the shape of the cavity with which it is working and the specific HOMs that are to be excited.

摘要翻译： 公开了一种线性加速器，其具有通过至少一些其中的一些RF信号和电子束被发送的一系列互连的空腔，包括突出到该系列的空腔中的至少一个可变耦合器，适于解释电气 来自耦合器的信号并从其中导出关于电子束的诊断信息，其中控制装置还适于根据诊断信息改变至少一个耦合器与rf信号的相互作用。 因此，可以通过鼓励或煽动具有期望效果的高阶模式（“HOM”）来调节加速器特性，例如聚束和/或偏转。 联接器可以是可旋转的，并且部分地或完全可缩回的，以允许其影响被调整和/或在不需要的时候使其脱离服务。 可以使用若干这样的探针，从不同方向或不同位置接近腔，或接近不同的腔。 耦合器可以是不对称的，以便对腔体施加适当的影响并引起有用的HOM。 例如，它可以用至少一个方向偏移来延伸，例如曲棍球棒。 然而，通常，耦合器的适当形状将取决于其正在工作的腔体的形状和要激发的特定HOM。