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公开(公告)号：US07912176B2
公开(公告)日：2011-03-22
申请号：US12210983
申请日：2008-09-15
IPC分类号： A61B6/03
CPC分类号： A61B6/502
摘要： A system includes emission of a first plurality of radiation beams from respective ones of a first plurality of locations along a first arc, acquisition of a first plurality of projection images of a target based on the first plurality of radiation beams, emission of a second plurality of radiation beams from respective ones of a second plurality of locations along a second arc, acquisition of a second plurality of projection images of the target based on the second plurality of radiation beams, and generation of a three-dimensional image of the target based on the first plurality of projection images and the second plurality of projection images, wherein a density of the first plurality of locations along the first arc is less than the density of the second plurality of locations along the second arc.
摘要翻译： 一种系统包括从沿着第一弧的第一多个位置的相应位置发射第一多个辐射束，基于第一多个辐射束获取目标的第一多个投影图像，发射第二多个 的辐射束，沿着第二弧的来自第二多个位置的相应的辐射束，基于所述第二多个辐射束获取所述目标的第二多个投影图像，以及基于所述第二多个辐射束生成所述目标的三维图像 第一多个投影图像和第二多个投影图像，其中沿着第一弧的第一多个位置的密度小于沿着第二弧的第二多个位置的密度。
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公开(公告)号：US20110009736A1
公开(公告)日：2011-01-13
申请号：US12500000
申请日：2009-07-09
CPC分类号： A61N5/1049 , A61B90/39 , A61B2017/00411 , A61B2017/00831 , A61B2090/3975 , A61N2005/1051 , A61N2005/1087 , B82Y5/00
摘要： A system may include a biocompatible housing and an electrical circuit disposed within the housing, the electrical circuit to emit a radiofrequency signal, and wherein the electrical circuit does not comprise a metal. Also included may be a signal generator to generate a wireless signal to trigger the electrical circuit, a receiver to receive a wireless response signal generated by the triggered electrical circuit, a processor to determine a location of the biocompatible housing based on the wireless response signal, and a ion beam source to deliver a ion beam to a patient volume including the biocompatible housing.
摘要翻译： 系统可以包括生物相容性壳体和布置在壳体内的电路，电路发射射频信号，并且其中电路不包括金属。 还包括信号发生器以产生无线信号以触发电路，接收器接收由触发的电路产生的无线响应信号，处理器基于无线响应信号确定生物兼容外壳的位置， 以及离子束源，用于将离子束输送到包括生物相容性壳体的患者体积。
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公开(公告)号：US07804936B2
公开(公告)日：2010-09-28
申请号：US11824404
申请日：2007-06-28
申请人： Jean Pouliot , Josephine Chen , Hong Chen , Juan Carlos Celi , Ali Bani-Hashemi , Bijumon Gangadharan
发明人： Jean Pouliot , Josephine Chen , Hong Chen , Juan Carlos Celi , Ali Bani-Hashemi , Bijumon Gangadharan
IPC分类号： A61N5/10
CPC分类号： A61N5/1049 , A61B6/032 , A61B6/4085 , A61B6/466 , A61B6/5282 , A61B6/583 , A61N5/1065 , A61N5/1071 , A61N2005/1054
摘要： A system includes acquisition of a three-dimensional cone beam image, and determination of a dose to be delivered based on the three-dimensional image and on parameters of a treatment beam to deliver the dose. Some systems may include modification of a three-dimensional cone beam image to correct for scatter radiation, and determination of a dose based on the modified three-dimensional cone beam image.
摘要翻译： 系统包括获取三维锥形束图像，以及基于三维图像和治疗束的参数来确定要递送的剂量以递送剂量。 一些系统可以包括修改三维锥形束图像以校正散射辐射，以及基于修改的三维锥形束图像确定剂量。
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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：US20090003512A1
公开(公告)日：2009-01-01
申请号：US11824404
申请日：2007-06-28
申请人： Jean Pouliot , Josephine Chen , Hong Chen , Juan Carlos Celi , Ali Bani-Hashemi , Bijumon Gangadharan
发明人： Jean Pouliot , Josephine Chen , Hong Chen , Juan Carlos Celi , Ali Bani-Hashemi , Bijumon Gangadharan
IPC分类号： A61B6/00
CPC分类号： A61N5/1049 , A61B6/032 , A61B6/4085 , A61B6/466 , A61B6/5282 , A61B6/583 , A61N5/1065 , A61N5/1071 , A61N2005/1054
摘要： A system includes acquisition of a three-dimensional cone beam image, and determination of a dose to be delivered based on the three-dimensional image and on parameters of a treatment beam to deliver the dose. Some systems may include modification of a three-dimensional cone beam image to correct for scatter radiation, and determination of a dose based on the modified three-dimensional cone beam image.
摘要翻译： 系统包括获取三维锥形束图像，以及基于三维图像和治疗束的参数来确定要递送的剂量以递送剂量。 一些系统可以包括修改三维锥形束图像以校正散射辐射，以及基于修改的三维锥形束图像确定剂量。
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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：US07355682B2
公开(公告)日：2008-04-08
申请号：US11030836
申请日：2005-01-07
申请人： Ali Bani-Hashemi
发明人： Ali Bani-Hashemi
IPC分类号： G00C3/00
CPC分类号： A61N5/1049 , A61N2005/105 , A61N2005/1059 , G01B11/2513 , G01C3/08
摘要： A system for measuring the distance from a first point spaced away from a surface of an object to a second point on a surface of the object along an axis extending through the first and second points includes one or more light projection assemblies for projecting light stripes onto the surface of the object so that the light stripes pass though the second point. An imaging device detects the position of the second point by sensing the light stripes at the second point. A distance calculator may then calculate the distance between the first point and the second point using the position of the second point detected by the imaging device. The system is calibrated using the cross-ratio of points detected along the axis by the imaging device.
摘要翻译： 用于测量从物体表面间隔开的第一点到物体表面上的延伸穿过第一和第二点的轴线的距离的系统包括一个或多个用于将光条投射到 物体的表面，使得光条穿过第二点。 成像装置通过感测第二点处的光条来检测第二点的位置。 然后距离计算器可以使用由成像装置检测到的第二点的位置来计算第一点和第二点之间的距离。 使用成像装置沿着轴检测的点的交叉比来校准系统。
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公开(公告)号：US20070018117A1
公开(公告)日：2007-01-25
申请号：US11187660
申请日：2005-07-21
IPC分类号： G01N23/04
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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29.发明授权Fluoroscopy based 3-D neural navigation based on 3-D angiography reconstruction data 有权基于3-D血管造影重建数据的基于荧光透视的3-D神经导航公开(公告)号：US06389104B1
公开(公告)日：2002-05-14
申请号：US09607906
申请日：2000-06-30
申请人： Ali Bani-Hashemi , Arun Krishnan , James Williams
发明人： Ali Bani-Hashemi , Arun Krishnan , James Williams
IPC分类号： A61B603
CPC分类号： A61B6/504 , A61B6/12 , A61B6/4441 , A61B6/463 , A61B6/466 , A61B6/481 , A61B6/5235 , A61B6/5247 , A61B90/36 , G06T11/006 , G06T2211/404 , G06T2211/412 , G06T2211/428
摘要： A method and apparatus for providing a high-quality representation of a volume having a real-time 3-D reconstruction therein of movement of an object, wherein the real-time movement of the object is determined using a lower-quality representation of only a portion of the volume. Movement of the object is detected in a 2-D X-ray fluoroscopy image and is reconstructed in a 3-D angiography (X-ray) reconstruction. Using a common C-arm and X-ray geometry advantageously, the 2-D and 3-D data representative of vascular structures of a patient is acquired, thereby facilitating the merger of the real-time 2-D fluoroscopic images with the 3-D reconstructed vascular structures in a common 3-D-visualization framework. Also described is a technique for 3-D reconstruction of a catheter from real-time 2-D fluoroscopic images and stored 3-D angiography data, so as to present the 3-D reconstructed catheter in the common coordinate frame. The merger of 3-D angiography image representations acquired with other modalities, such as MR or CT, is also disclosed.
摘要翻译： 一种用于提供其中具有物体的移动的实时3维重建的体积的高质量表示的方法和装置，其中使用较低质量的仅仅一个 部分音量。 在2-D X射线荧光透视图像中检测物体的移动，并在3-D血管造影（X射线）重建中重建。 有利地使用常见的C形臂和X射线几何形状，代表患者的血管结构的2-D和3-D数据，从而有助于将实时2-D透视图像与3- D重建血管结构在一个共同的3-D可视化框架。 还描述了一种用于从实时二维透视图像和存储的三维血管造影数据进行导管三维重建的技术，以将3-D重建的导管呈现在共同的坐标系中。 还公开了与其他方式（例如MR或CT）获得的3-D血管造影图像表示的合并。
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公开(公告)号：US6084937A
公开(公告)日：2000-07-04
申请号：US162303
申请日：1998-09-28
申请人： Kwok C. Tam , Ali Bani-Hashemi
发明人： Kwok C. Tam , Ali Bani-Hashemi
CPC分类号： G06T11/006 , A61B6/032 , A61B6/466 , A61B6/027 , G06T2211/421 , Y10S378/901
摘要： A method and apparatus for three dimensional (3D) computerized tomographic (CT) imaging of a region-of-interest (ROI) in an object, wherein image reconstruction processing is applied to a plurality of sets of 2D cone beam projection data, each set being acquired on a 2D detector at a corresponding plurality of scan path source positions. A first image reconstruction processing step comprises applying a mask to each set of the projection data so that data inside the boundaries of each mask form a corresponding plurality of masked 2D data sets. Next, the data inside each masked 2D data set is filtered along a plurality of parallel lines formed therein, to generate a corresponding plurality of filtered 2D data sets. Each filtered 2D data set corresponds to a calculation of a first estimate of Radon derivative data determined from a given set of the 2D cone beam projection data. The next step comprises adaptively developing 2D correction data for each of the first estimates of Radon derivative data. The final step comprises combining each filtered 2D data set and the adaptively determined 2D correction data calculated therefore, in a weighted 3D backprojection manner into a 3D space, thereby reconstructing a 3D image of the ROI in the object.
摘要翻译： 一种用于对象中感兴趣区域（ROI）的三维（3D）计算机断层摄影（CT）成像的方法和装置，其中将图像重建处理应用于多组2D锥形束投影数据，每组 在相应的多个扫描路径源位置上在2D检测器上获取。 第一图像重建处理步骤包括将掩模应用于每组投影数据，使得每个掩模的边界内的数据形成对应的多个被掩蔽的2D数据集。 接下来，沿着形成在其中的多条平行线对每个被屏蔽的2D数据集内的数据进行滤波，以产生相应的多个经滤波的2D数据集。 每个滤波的2D数据集对应于从给定的2D锥形束投影数据集确定的氡导数数据的第一估计的计算。 下一步包括对Radon导数数据的第一估计中的每一个自适应地开发2D校正数据。 最后一步包括将每个经滤波的2D数据集合和由此计算的自适应确定的2D校正数据以加权的3D反投影方式组合成3D空间，由此重建对象中的ROI的3D图像。
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