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公开(公告)号：US07397044B2
公开(公告)日：2008-07-08
申请号：US11187660
申请日：2005-07-21
申请人： Edward Lewis Calderon , Francisco M. Hernadez-Guerra , Ali Bani-Hashemi , Farhad A. Ghelmansarai
发明人： Edward Lewis Calderon , Francisco M. Hernadez-Guerra , Ali Bani-Hashemi , Farhad A. Ghelmansarai
CPC分类号： G01N23/04 , A61N5/1048 , A61N2005/1061
摘要： Some embodiments include reception of a first instruction to enter an imaging mode, and, in response to the first instruction, automatic performance of at least one of: reduction of a focal spot size of a radiation beam, movement of a flattening filter out of a path of the radiation beam, replacement of a first target for photon emission with a second target for photon emission, or movement of a scatter-reducing filter into the path of the radiation beam. Embodiments may further include reception of a second instruction to enter a first radiation treatment mode, and, in response to the second instruction, automatic performance at least one of: increase of a focal spot size of the radiation beam, movement of the flattening filter into the path of the radiation beam, replacement of the second target with the first target, or movement of the scatter-reducing filter out of the path of the radiation beam.
摘要翻译： 一些实施例包括接收进入成像模式的第一指令，并且响应于第一指令，自动执行以下中的至少一个：减少辐射束的焦点尺寸，使扁平滤波器从 辐射束的路径，用用于光子发射的第二目标替换用于光子发射的第一目标，或者将散射减小滤波器移动到辐射束的路径中。 实施例还可以包括接收进入第一辐射治疗模式的第二指令，并且响应于第二指令，自动执行以下中的至少一个：增加辐射束的焦点大小，使扁平化滤波器移动到 辐射束的路径，用第一目标替换第二目标，或者将散射减小滤波器移动到辐射束的路径之外。
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公开(公告)号：US07242742B2
公开(公告)日：2007-07-10
申请号：US11187128
申请日：2005-07-21
申请人： Edward Lewis Calderon , Francisco M. Hernandez-Guerra , Ali Bani-Hashemi , Farhad A. Ghelmansarai
发明人： Edward Lewis Calderon , Francisco M. Hernandez-Guerra , Ali Bani-Hashemi , Farhad A. Ghelmansarai
CPC分类号： A61N5/1049 , A61N2005/1054 , G21K5/04 , H05G2/00
摘要： Some embodiments include a particle source, an RF power source, an accelerator waveguide, and an imaging device. The particle source is to generate a first injector current and a second injector current, the first injector current being less than the second injector current. The RF power source is to generate first RF power at a first pulse rate and second RF power at a second pulse rate, the first pulse rate being greater than the second pulse rate. The accelerator waveguide is to accelerate a first electron beam based on the first injector current and the first RF power and to accelerate a second electron beam based on the second injector current and the second RF power, and the imaging device is to acquire an image based on the first electron beam. The second electron beam may be used to deliver treatment radiation to a patient.
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公开(公告)号：US07671342B2
公开(公告)日：2010-03-02
申请号：US11034348
申请日：2005-01-11
IPC分类号： G01T1/20
CPC分类号： G01T1/2018 , G01T1/2008
摘要： X-ray portal imaging detectors have multiple layers, such as multiple layers of phosphor screens and/or detectors. Some x-rays that pass through one layer are detected or converted into light energies in a different layer. For example, one phosphor screen is provided in front and another behind that panel detector circuitry. Light generated in each of the phosphor screens is detected by the same detector circuitry. As another example, multiple layers of phosphor screens and associated detector circuits are provided. Some x-rays passing through one layer may be detected in a different layer. High energy x-rays associated with Megavoltage sources as well as lower or higher energy x-rays may be detected.
摘要翻译： X射线入口成像检测器具有多层，例如多层荧光屏和/或检测器。 通过一层的一些X射线被检测或转换成不同层中的光能。 例如，在该面板检测器电路的前面和另一个之后提供一个荧光屏。 在每个荧光屏中产生的光由相同的检测器电路检测。 作为另一示例，提供了多层荧光屏和相关联的检测器电路。 可以在不同的层中检测穿过一层的一些X射线。 可以检测与Megavoltage源以及较低或较高能量X射线相关的高能X射线。
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公开(公告)号：US06760402B2
公开(公告)日：2004-07-06
申请号：US10211470
申请日：2002-08-01
IPC分类号： A61N510
CPC分类号： A61N5/1049 , A61B6/583 , A61N5/1042 , A61N2005/1054 , A61N2005/1056 , A61N2005/1076
摘要： A system includes acquisition of first electronic image data representing a phantom located at a first position and irradiated by a first radiation field emitted by a radiation emitter, acquisition of second electronic image data representing the phantom located at a second position based at least on a first light field emitted by a light emitter and irradiated by a second radiation field emitted by the radiation emitter, generation of third electronic image data by correcting the second electronic image data based at least on the first electronic image data, and determination of a deviation between the first light field and the second radiation field based at least on the third electronic image data.
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公开(公告)号：US07263164B2
公开(公告)日：2007-08-28
申请号：US10837405
申请日：2004-04-30
IPC分类号： G01N23/201
CPC分类号： A61B6/5282 , A61B6/00 , A61B6/583 , G01N23/06
摘要： A system includes acquisition of a first image of a first radiation field, at least a portion of the first radiation field comprising radiation attenuated by a device, and the first image including a representation of first scatter radiation generated during acquisition of the first image, acquisition of a second image of a second radiation field, at least a portion of the second radiation field comprising radiation attenuated by a volume corresponding to the device, and the second image including a representation of second scatter radiation generated during acquisition of the second image, and modification of the second image based on the first image to compensate for the second scatter radiation.
摘要翻译： 一种系统包括获取第一辐射场的第一图像，所述第一辐射场的至少一部分包括被设备衰减的辐射，并且所述第一图像包括在获取所述第一图像期间产生的第一散射辐射的表示，采集 第二辐射场的第二图像的第二图像的至少一部分包括由对应于该装置的体积衰减的辐射，第二图像包括在获取第二图像期间产生的第二散射辐射的表示，以及 基于第一图像修改第二图像以补偿第二散射辐射。
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公开(公告)号：US07486983B2
公开(公告)日：2009-02-03
申请号：US10366203
申请日：2003-02-12
IPC分类号： A61N5/10
CPC分类号： A61N5/1048 , A61N5/1042
摘要： A system to acquire a first image of a radiation field, the radiation field produced by a radiation beam, and to determine a second image based on the first image and based on a reference image of a reference radiation field having substantially homogeneous intensity, the second image representing characteristics of the radiation beam. Some embodiments provide acquisition of a first profile associated with a radiation beam using a radiation detection device, acquisition of a first image of a first radiation field produced by the radiation beam using an imaging device, determination of a map between the first image and the first profile, acquisition a second image of a second radiation field using the imaging device, and determination of a second profile based on the map and the second image.
摘要翻译： 一种用于获取辐射场的第一图像的系统，由辐射束产生的辐射场，并且基于第一图像确定第二图像，并且基于具有基本均匀强度的参考辐射场的参考图像，第二个 表示辐射束特征的图像。 一些实施例使用辐射检测装置提供与辐射束相关联的第一轮廓的采集，使用成像装置获取由辐射束产生的第一辐射场的第一图像，确定第一图像和第一图像之间的图 使用成像装置获取第二辐射场的第二图像，以及基于地图和第二图像确定第二轮廓。
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公开(公告)号：US06925149B2
公开(公告)日：2005-08-02
申请号：US10209521
申请日：2002-07-30
CPC分类号： A61B6/4233 , A61N5/1049 , A61N2005/1054
摘要： A system for capturing an image of transmitted radiation includes transmission of a disable signal to disable a bias light of a camera at a time prior to transmission of radiation, and acquisition of an image from the camera during transmission of the radiation and during deactivation of the bias light. In some embodiments, the disable signal is transmitted in response to the reception of a pre-radiation signal, the pre-radiation signal indicating that transmission of the radiation will commence approximately one frame scan time after the pre-radiation signal is received, and the disable signal is transmitted approximately when the pre-radiation signal is received.
摘要翻译： 用于捕获发射辐射的图像的系统包括在辐射发射之前的时间传输禁用信号以禁用照相机的偏置光，以及在辐射的传输期间以及在放射的过程中从照相机获取图像 偏光 在一些实施例中，响应于接收到预辐射信号来发射禁用信号，指示辐射的传输将在接收到预辐射信号之后大约一帧扫描时间开始的预辐射信号，并且 当接收到预辐射信号时，大致传输禁用信号。
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