公开(公告)号：US20170177812A1

公开(公告)日：2017-06-22

申请号：US14976735

申请日：2015-12-21

申请人： Elekta AB (Publ)

发明人： JENS Olaf SJÕLUND

IPC分类号： G06F19/00 ,  G06N99/00

CPC分类号： G16H50/20 ,  A61N5/103 ,  A61N5/1038 ,  A61N2005/1041 ,  G06N20/00 ,  G16H20/40 ,  G16H30/40 ,  G16H50/70

摘要： The present disclosure relates to systems, methods, and computer-readable storage devices for radiotherapy treatment planning. For example, a method may generate a treatment plan for a patient. The method may receive training data reflecting radiotherapy treatment data. The training data may include a feature vector and a target vector. The method may further determine a training model based on the feature vector and the target vector. The method may further receive testing data associated with the patient. The testing data may include a descriptive feature vector. The method may further determine a therapy model based on the descriptive feature vector and the training model. The therapy model may be used to generate the treatment plan.

公开(公告)号：US09643028B2

公开(公告)日：2017-05-09

申请号：US14396989

申请日：2012-04-25

申请人： Rui Chen

发明人： Rui Chen

IPC分类号： A61N5/10

CPC分类号： A61N5/1049

摘要： A radiotherapy apparatus includes a source of radiation, a patient support for locating a patient in the field of the source of radiation, a position detector for determining a position of a patient relative to the radiotherapy apparatus, a comparator for comparing the output of the position detector with a predetermined position, and a feedback system for informing the patient of the output of the comparator.

公开(公告)号：US09642554B2

公开(公告)日：2017-05-09

申请号：US13808578

申请日：2011-07-06

申请人： Juha Simola ,  Samu Taulu

发明人： Juha Simola ,  Samu Taulu

IPC分类号： A61B5/00 ,  A61B5/05 ,  A61B5/04 ,  G01R33/025 ,  G01R33/035

CPC分类号： A61B5/05 ,  A61B5/0042 ,  A61B5/04008 ,  A61B5/4064 ,  A61B5/7225 ,  G01R33/025 ,  G01R33/035

摘要： The present invention introduces a method for adjusting interference signal estimates provided by multichannel biomagnetic field measurements. A so-called Signal Space Separation method (SSS) is applied in the calculatory analysis of the measurement signals, providing for the division of the sources causing the fields in objects of interest and external interferences. When the signal basis representing the interferences has been estimated, this interference signal estimate is adjusted by measuring the fields without the object to be measured and without changing the sensor assembly. Interference components obtained in this manner are analyzed in such a way as to include only the most significant interference components. An adjusted interference subspace is formed, by means of which signal processing and the analysis of the useful signals can be continued.

公开(公告)号：US09572998B2

公开(公告)日：2017-02-21

申请号：US14495137

申请日：2014-09-24

申请人： ELEKTA AB (PUBL)

发明人： Virgil Willcut ,  Martin Broad ,  David Anthony Roberts

IPC分类号： A61N5/10 ,  G21K1/10 ,  G21K1/04

CPC分类号： A61N5/1045 ,  A61N5/1077 ,  G21K1/025 ,  G21K1/046 ,  G21K1/10

摘要： A collimator for a radiotherapy apparatus, comprising a block of radiation-attenuating material having a front face forming the leading edge of the block and at least one main rear face defining the trailing edge of the block, in which the or each rear face is substantially planar in the direction of the depth of the block and non-parallel to the front face. The collimator may form part of a radiotherapy apparatus, and methods of operation of such apparatus are described.

摘要翻译： 一种用于放射治疗装置的准直器，包括一组辐射衰减材料，其具有形成该块的前缘的前表面和至少一个限定该块的后缘的主后表面，其中每个后表面基本上 在块的深度方向上是平面的，并且不平行于前表面。 准直器可以形成放射治疗装置的一部分，并描述了这种装置的操作方法。

公开(公告)号：US20170036040A1

公开(公告)日：2017-02-09

申请号：US15288401

申请日：2016-10-07

申请人： Elekta AB (Publ)

发明人： Per H. Bergfjord ,  Daniel Thompson ,  Christopher Knox ,  Andrew Long ,  Stephen Young

IPC分类号： A61N5/10 ,  A61B90/00

CPC分类号： A61N5/1048 ,  A61B90/36 ,  A61N5/1067 ,  A61N2005/1059

摘要： In various embodiments, a system for controlling radiotherapy equipment in a treatment environment includes a controller for receiving, from one or more image capture devices, data indicating the position of one or more objects in the treatment environment. Based on the position data, the controller defines one or more exclusionary zones from which the radiotherapy equipment is excluded. Each zone has a buffer area surrounding one or more of the objects. The controller further directs the radiotherapy equipment such that a radiotherapy treatment plan is delivered without the equipment entering into the exclusionary zones.

摘要翻译： 在各种实施例中，用于在治疗环境中控制放射治疗设备的系统包括用于从一个或多个图像捕获设备接收指示治疗环境中的一个或多个物体的位置的数据的控制器。 基于位置数据，控制器定义一个或多个排除区域，排除放射治疗设备。 每个区域具有围绕一个或多个对象的缓冲区。 控制器进一步指导放射治疗设备，使得在没有设备进入排除区域的情况下传送放射治疗计划。

公开(公告)号：US20170027540A1

公开(公告)日：2017-02-02

申请号：US15302414

申请日：2014-04-15

申请人： ELEKTA AB (PUBL)

发明人： Jens SJÖLUND

IPC分类号： A61B6/00 ,  A61N5/10 ,  A61B6/03

CPC分类号： A61B6/583 ,  A61B6/032 ,  A61B6/50 ,  A61N5/1039 ,  A61N5/1075 ,  A61N2005/1061 ,  A61N2005/1076

摘要： A method of calibrating a positioning system in a radiation therapy system is disclosed, including a radiation therapy unit having a fixed radiation focus. The method includes the steps of irradiating a calibration tool including at least one reference object, capturing at least one two-dimensional image including cross-sectional representations of reference objects of the calibration tool and determining image coordinates of the representation of each reference object. Based on the reference objects image coordinates, positions of the reference objects in the stereotactic coordinate system relative to an origin of the calibration tool and the position of the origin of the calibration tool relative to the imaging unit, a position difference between the position of the calibration tool in the stereotactic coordinate system and a position of the calibration tool in an imaging system coordinate system including a translational and rotational position difference is calculated.

摘要翻译： 公开了一种在辐射治疗系统中校准定位系统的方法，包括具有固定辐射聚焦的放射治疗单元。 该方法包括以下步骤：照射包括至少一个参考对象的校准工具，捕获包括校准工具的参考对象的横截面表示的至少一个二维图像并确定每个参考对象的表示的图像坐标。 基于参考对象图像坐标，立体定向坐标系中的参考对象相对于校准工具的原点的位置和校准工具的原点相对于成像单元的位置，位置差异 计算立体定向坐标系中的校准工具和校准工具在包括平移和旋转位置差的成像系统坐标系中的位置。

公开(公告)号：US20160354617A1

公开(公告)日：2016-12-08

申请号：US15117695

申请日：2015-02-04

申请人： ELEKTA AB (PUBL)

发明人： Per Carlsson

IPC分类号： A61N5/10

CPC分类号： A61N5/1082 ,  A61N5/103 ,  A61N5/1049 ,  A61N5/1067 ,  A61N2005/1061

摘要： An apparatus is disclosed, which comprises a radiotherapy delivery apparatus having a radiation source for emitting a beam of radiation and rotatable around an axis intersecting the beam through a range of at least x degrees, an imaging device, and a control unit for controlling the source and imaging device. The apparatus further comprises a treatment planning computer configured to receive a first image of a patient, and receive parameters defining the operations of the radiotherapy delivery apparatus. The parameters include an available range of rotation for the source defined as x-e, where e>0. The treatment planning computer is further configured to generate a treatment plan for the patient based on the received image and parameters. The control unit determines a patient position using the imaging device, determines a rotation r of the patient around the axis relative to the first image, and compensates for the rotation by offsetting the source by a rotation equal to r when r

摘要翻译： 公开了一种装置，其包括放射治疗递送装置，其具有用于发射辐射束的辐射源，并且能够围绕与光束交叉的轴线可旋转至少x度的范围，成像装置和用于控制源的控制单元 和成像装置。 该装置还包括治疗计划计算机，其被配置为接收患者的第一图像，并且接收限定放射治疗递送装置的操作的参数。 参数包括定义为x-e的源的可用旋转范围，其中e> 0。 治疗计划计算机还被配置为基于接收到的图像和参数来生成患者的治疗计划。 控制单元使用成像装置确定患者位置，确定患者围绕轴线相对于第一图像的旋转r，并且当r

公开(公告)号：USD773674S1

公开(公告)日：2016-12-06

申请号：US29504734

申请日：2014-10-08

申请人： ELEKTA AB (PUBL)

设计人： Erik Rurling ,  Anna Wik ,  Malin Svensson ,  Ivars Alksnis ,  Marianne Plantz ,  Mathias Stavervik

公开(公告)号：US20160074673A1

公开(公告)日：2016-03-17

申请号：US14851527

申请日：2015-09-11

申请人： ELEKTA AB (PUBL)

发明人： John Allen ,  Colin Winfield

IPC分类号： A61N5/10

CPC分类号： A61N5/1049 ,  A61B6/032 ,  A61N5/1036 ,  A61N5/1047 ,  A61N5/107 ,  A61N5/1081 ,  A61N5/1083 ,  A61N2005/1054 ,  A61N2005/1074

摘要： A radiotherapy apparatus comprises a source for producing a beam of ionising radiation along an axis, the beam covering a maximum aperture of the source, a collimator for collimating the beam to produce a collimated beam covering a sub-part of the maximum aperture, a patient support positioned in the path of the beam, a rotatable gantry, on which the source is mounted, for rotating the source around the patient support thereby to deliver the beam from a range of directions, an imaging device located opposite the source and with the patient support between the source and the imaging device, and mounted on the gantry via a drive member allowing translational motion of the imaging device in at least one direction perpendicular to the axis, and a control unit adapted to control the drive member to move the imaging device within the maximum aperture and maintain coincidence between the imaging device and the sub-part of the maximum aperture. Accordingly, the EPID can be moved during the treatment in order to maintain the collimated field of the radiation beam within the bounds of the EPID. This ensures that the image is valid and prevents damage to the EPID as a result of exposure of more sensitive (or less shielded) parts to the beam.

摘要翻译： 放射治疗装置包括用于产生沿着轴的电离辐射束的源，所述束覆盖源的最大孔径，用于准直光束以产生覆盖最大孔径的子部分的准直束的准直器，患者 定位在梁的路径中的支撑件，可旋转机架，源安装在该可旋转机架上，用于使源围绕患者支架旋转，从而从一系列方向输送束;成像装置，位于与源相对的位置，与病人 源和成像装置之间的支撑，并且经由驱动构件安装在台架上，驱动构件允许成像装置在垂直于轴线的至少一个方向上进行平移运动;以及控制单元，适于控制驱动构件以使成像装置 并且保持成像装置与最大光圈的子部分之间的重合。 因此，EPID可以在治疗期间移动，以便将辐射束的准直场保持在EPID的范围内。 这确保了图像有效，并且防止由于将更敏感（或更少屏蔽）的部件暴露于光束而导致对EPID的损坏。

公开(公告)号：US09271684B2

公开(公告)日：2016-03-01

申请号：US13956605

申请日：2013-08-01

申请人： Elekta AB (publ)

发明人： Christopher Knox ,  Colin Winfield ,  Kevin Brown

IPC分类号： A61B6/03 ,  A61B6/00 ,  A61N5/10

CPC分类号： A61B6/032 ,  A61B6/4233 ,  A61B6/466 ,  A61N2005/1061

摘要： An apparatus has a patient support, a rotatable gantry supporting a source of imaging radiation, and a radiation detector that operates in a cyclical pattern of an exposure phase followed by a readout phase. For a first detector cycle in which the gantry has a first angle of rotation, the source of radiation is controlled to emit a first radiation beam pulse during the exposure phase, and respective first imaging data is read out during the readout phase. For a second, subsequent detector cycle, it is determined if the gantry has rotated through at least a threshold angular displacement relative to said first angle of rotation, and if so, the source of radiation is controlled to emit a second radiation beam pulse during the exposure phase, and respective second imaging data is read out during the readout phase.

摘要翻译： 一种装置具有患者支撑件，支撑成像辐射源的可旋转机架以及以曝光阶段的周期性图案操作的辐射检测器，随后是读出阶段。 对于其中机架具有第一旋转角度的第一检测器循环，在曝光阶段期间控制辐射源发射第一辐射束脉冲，并且在读出阶段期间读出相应的第一成像数据。 对于第二个随后的检测器周期，确定台架是否相对于所述第一旋转角度旋转了至少一个阈值角位移，如果是，则控制辐射源在第二辐射束脉冲期间发射第二辐射束脉冲 曝光阶段，并且在读出阶段期间读出各自的第二成像数据。