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1.发明授权
公开(公告)号：US6148060A
公开(公告)日：2000-11-14
申请号：US172709
申请日：1998-10-13
申请人： William F. Collins , Francis Cheng
发明人： William F. Collins , Francis Cheng
摘要： Method and system aspects for integrated automatic exposure control for portal imaging in radiotherapy are described. In an exemplary method aspect, the method includes controlling scanning and blanking of a target of a camera pick-up tube to capture an initial image, and analyzing the initial image to establish an initial image intensity. The method further includes utilizing the initial image intensity to determine a time for scanning a next image, and combining a scan of the next image with the initial image to produce a portal image with a maximized signal to noise ratio.
摘要翻译： 描述了放射治疗门静脉成像综合自动曝光控制的方法和系统方面。 在示例性方法方面，该方法包括控制摄像机的目标的扫描和消隐以捕获初始图像，以及分析初始图像以建立初始图像强度。 该方法还包括利用初始图像强度来确定用于扫描下一图像的时间，以及将下一图像的扫描与初始图像组合以产生具有最大信噪比的门户图像。
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公开(公告)号：US07076023B2
公开(公告)日：2006-07-11
申请号：US10039607
申请日：2001-10-26
IPC分类号： A61N5/10
摘要： X-ray therapy EPI artifact reduction and control of imaging is provided. Scanning of images is synchronized with the pulse rate of the x-rays. The scanning period is longer than the pulse rate period, so artifacts are generated within the resulting images. Due to the synchronization, the pulse variation artifacts are aligned across multiple images. The synchronization and resulting alignment of linear artifacts allows for gain correction as a function of lines within the image. Such gain correction reduces or removes non-linearities associated with pulse rate variation.
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公开(公告)号：US07070327B2
公开(公告)日：2006-07-04
申请号：US10253287
申请日：2002-09-24
申请人： William F. Collins
发明人： William F. Collins
IPC分类号： A61B6/08
CPC分类号： A61N5/1049 , A61N2005/1056 , A61N2005/1091 , A61N2005/1098
摘要： A system includes substantial focus of radiation on a focal area, the focused radiation following a radiation path from a lens to the focal area, and projection of light on a surface so as to substantially indicate an intersection of the radiation path with the surface. In some aspects, the light projected on the surface substantially indicates a distance between the surface and the focal area.
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公开(公告)号：US5828297A
公开(公告)日：1998-10-27
申请号：US882520
申请日：1997-06-25
CPC分类号： B60R25/20 , B60R25/04 , B60R2025/041
摘要： A vehicle anti-theft system includes an engine control computer operable to control engine fueling in a normal mode of operation according to operator demand via an accelerator pedal, and a code interface module responsive to a predefined security code to set the engine control computer in a secure mode of operation. In the secure mode, two fuel enabling values in the engine fueling algorithm are altered. Specifically, an engine startup enable value is altered so that the engine control computer disables fueling if the engine is not running, to thereby prevent an unauthorized individual from starting the engine. Likewise, an accelerator enable value is altered so that the engine control computer disregards the accelerator signal and controls fueling of the engine to thereby maintain an engine idling condition. The control computer is reset to its normal fueling control mode by re-entering the security code.
摘要翻译： 车辆防盗系统包括发动机控制计算机，其可操作以根据操作者的需求通过加速器踏板来控制正常操作模式下的发动机燃料供应;以及代码接口模块，其响应于预定义的安全代码将发动机控制计算机设置在 安全的操作模式。 在安全模式下，改变发动机加油算法中的两个燃料使能值。 具体地说，改变发动机启动使能值，使得发动机控制计算机在发动机不运转时禁止加油，从而防止未授权的个人起动发动机。 同样地，加速器启用值被改变，使得发动机控制计算机忽视加速器信号并且控制发动机的燃料供应，从而保持发动机空转状态。 通过重新输入安全码，控制计算机将重新设置为正常的加油控制模式。
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公开(公告)号：US07027558B2
公开(公告)日：2006-04-11
申请号：US10981223
申请日：2004-11-03
IPC分类号： G01N23/00
摘要： X-ray therapy EPI artifact reduction and control of imaging is provided. Scanning of images is synchronized with the pulse rate of the x-rays. The scanning period is longer than the pulse rate period, so artifacts are generated within the resulting images. Due to the synchronization, the pulse variation artifacts are aligned across multiple images. The synchronization and resulting alignment of linear artifacts allows for gain correction as a function of lines within the image. Such gain correction reduces or removes non-linearities associated with pulse rate variation.
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公开(公告)号：US06813337B2
公开(公告)日：2004-11-02
申请号：US09909513
申请日：2001-07-20
IPC分类号： G21K104
CPC分类号： A61N5/1042 , A61B6/06 , A61N5/1045 , A61N2005/1089 , G21K1/04 , G21K1/046
摘要： A removable electron collimator for use in collimating an electron beam in a radiation therapy device is provided, where the collimator includes drive electronics, removably mounted on an exterior of an accessory tray of the radiation therapy device. The electron collimator also includes a plurality of leaves positionable by the drive electronics to move across a path of the electron beam, the plurality of leaves removably mounted on the accessory tray of the radiation therapy device.
摘要翻译： 提供了一种用于在辐射治疗装置中准直电子束的可移除电子准直器，其中准直器包括可拆卸地安装在放射治疗装置的附件托盘的外部上的驱动电子装置。 电子准直器还包括可由驱动电子器件定位以跨过电子束的路径移动的多个叶片，多个叶片可移除地安装在放射线治疗装置的附件托盘上。
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公开(公告)号：US06782073B2
公开(公告)日：2004-08-24
申请号：US10252980
申请日：2002-09-23
申请人： William F. Collins
发明人： William F. Collins
IPC分类号： A61N510
CPC分类号： A61N5/103 , A61N2005/1091 , A61N2005/1098
摘要： A system includes determination of a treatment plan for delivering convergent radiation to a target based at least on a decrease in intensity of the convergent radiation due to material intercepted by the convergent radiation prior to reaching the target and on an increase in intensity of the convergent radiation due to a geometry of the convergent radiation. Some aspects include determination of a dose enhancement at the target over time due to contrast agent located at the target, wherein the determination of the treatment plan is based at least on the dose enhancement over time.
摘要翻译： 一种系统包括至少基于在到达目标之前由会聚辐射截取的材料的会聚辐射的强度的降低以及会聚辐射的强度的增加来确定用于将会聚辐射递送到目标的治疗计划 由于会聚辐射的几何形状。 一些方面包括由于位于靶标的造影剂，随着时间的推移确定靶标上的剂量增强，其中治疗计划的确定至少基于随时间的剂量增强。
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8.发明授权Patient positioning system employing surface photogrammetry and portal imaging 有权患者定位系统采用表面摄影测量和门静脉成像公开(公告)号：US06535574B1
公开(公告)日：2003-03-18
申请号：US10004206
申请日：2001-11-01
IPC分类号： A61N510
CPC分类号： A61N5/1049 , A61N5/1069 , A61N2005/105 , A61N2005/1054 , A61N2005/1059
摘要： A system includes acquistion of first data representing a three-dimensional surface of at least a portion of a patient'body while the patient is in a first position substantially maintained in preparation for radiation treatment, acquistion of an image of a first internal portion of the patient's body while the patient is substantially in the first position, and determination of whether the patient is properly positioned for radiation treatment based on the first data and the image.
摘要翻译： 一种系统包括获取表示患者身体的至少一部分的三维表面的第一数据，同时患者处于基本保持准备辐射治疗的第一位置，获取第一内部部分的图像 患者身体基本上处于第一位置，并且基于第一数据和图像确定患者是否被适当地定位用于放射治疗。
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公开(公告)号：US06519316B1
公开(公告)日：2003-02-11
申请号：US10053414
申请日：2001-11-02
申请人： William F. Collins
发明人： William F. Collins
IPC分类号： A61N510
CPC分类号： A61N5/1049
摘要： A system, method, apparatus, and means for controlling a portal imager includes operating a radiation therapy device to identify segment data defining a radiation therapy segment, identifying (from the segment data) portal position information, and positioning a portal imaging device based on the portal position information. The radiation therapy device may be further operated to identify field information identifying a radiation field to be delivered, position elements of the radiation therapy device to deliver the field, deliver the field, and capture a portal image on the portal imaging device.
摘要翻译： 用于控制门户成像器的系统，方法，装置和装置包括操作放射线治疗装置以识别限定放射线治疗段的区段数据，识别来自区段数据的入口位置信息，以及基于 门户位置信息。 辐射治疗装置可以被进一步操作以识别识别待传递的辐射场的场信息，放射治疗装置的位置元件以传送场，传送场并且在门静脉成像装置上捕获门静脉图像。
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公开(公告)号：US4528685A
公开(公告)日：1985-07-09
申请号：US494974
申请日：1983-05-16
申请人： Howard H. Kump , William F. Collins
发明人： Howard H. Kump , William F. Collins
CPC分类号： G21K1/10
摘要： A device for linearly oscillating one or more of a plurality of X-ray filter elements singly or in combination in and out of an X-ray beam at television frame rates. First and second substantially coplanar filter elements are adjacent each other and formed as a unitary member that is transverse to the X-ray beam. It is slidable bidirectionally on parallel guide tracks in one plane. A servo motor drives a closed loop belt which attaches to said member. A third planar filter element runs on tracks in a plane parallel to that of the unitary member. There are lug means on the third element spaced apart in the direction of its travel member that project up and are between the lug means on the third element to enable pushing or pulling it. Thus, the first and second filter elements can be oscillated alternately in and out of the X-ray beam by moving said unitary member without engaging the third element so it stays out of the beam. The member can be driven to one travel limit to pull the third element into the beam and let it stay there while the first element is oscillated beneath it so the beam passes through two filters. And the member can be driven to one travel limit and not be oscillated so the third filter element stays in the beam.
摘要翻译： 一种用于以电视帧速率将X射线束中的一个或多个X射线滤波器元件单独地或组合进入和组合进入和离开X射线束的装置。 第一和第二基本共面的过滤器元件彼此相邻并且形成为横向于X射线束的整体构件。 它可以在一个平面上的平行导轨上双向滑动。 伺服马达驱动连接到所述构件的闭环带。 第三平面过滤元件在与整体构件的平面平行的平面中的轨道上运行。 在第三元件上具有沿其行进构件的方向间隔开的凸耳装置，其突出并且位于第三元件上的凸耳装置之间以使其能够推动或拉动。 因此，第一和第二过滤器元件可以通过移动所述单一构件而不与第三元件接合而交替地摆动进出X射线束，使得其停留在光束之外。 该构件可以被驱动到一个行程限制，以将第三元件拉入梁中，并使其停留在那里，同时第一元件在其下摆动，使得梁通过两个过滤器。 并且该构件可以被驱动到一个行程极限并且不被振荡，使得第三个过滤器元件停留在梁中。
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