公开(公告)号：US20070018117A1

公开(公告)日：2007-01-25

申请号：US11187660

申请日：2005-07-21

申请人： Edward Calderon ,  Francisco Hernadez-Guerra ,  Ali Bani-Hashemi ,  Farhad Ghelmansarai

发明人： Edward Calderon ,  Francisco Hernadez-Guerra ,  Ali Bani-Hashemi ,  Farhad Ghelmansarai

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。

公开(公告)号：US20070018111A1

公开(公告)日：2007-01-25

申请号：US11187128

申请日：2005-07-21

申请人： Edward Calderon ,  Francisco Hernandez-Guerra ,  Ali Bani-Hashemi ,  Farhad Ghelmansarai

发明人： Edward Calderon ,  Francisco Hernandez-Guerra ,  Ali Bani-Hashemi ,  Farhad Ghelmansarai

IPC分类号： G01J1/42

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.

摘要翻译： 一些实施例包括粒子源，RF电源，加速波导和成像装置。 颗粒源是产生第一喷射器电流和第二喷射器电流，第一喷射器电流小于第二喷射器电流。 RF电源以第一脉冲速率产生第一RF功率，以第二脉冲速率产生第二RF功率，第一脉冲速率大于第二脉冲速率。 加速器波导是基于第一喷射器电流和第一RF功率来加速第一电子束，并且基于第二喷射器电流和第二RF功率来加速第二电子束，并且成像装置将获取基于图像的图像 在第一电子束上。 第二电子束可用于将治疗辐射递送给患者。

公开(公告)号：US20060151708A1

公开(公告)日：2006-07-13

申请号：US11034348

申请日：2005-01-11

申请人： Ali Bani-Hashemi ,  Farhad Ghelmansarai

发明人： Ali Bani-Hashemi ,  Farhad Ghelmansarai

IPC分类号： G01T1/24

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。

公开(公告)号：US09789337B2

公开(公告)日：2017-10-17

申请号：US13269324

申请日：2011-10-07

申请人： Ali Bani-Hashemi

发明人： Ali Bani-Hashemi

IPC分类号： A61B5/055 ,  A61N5/10

CPC分类号： A61N5/1039 ,  A61B5/055 ,  A61N2005/105 ,  A61N2005/1054 ,  A61N2005/1091 ,  A61N2005/1094

摘要： A system includes acquisition of a first three-dimensional image of a patient volume using a magnetic resonance imaging scanner, acquisition of a second three-dimensional image of the patient volume using cone beam radiation emitted by the linear accelerator, and generation of a radiation treatment plan based on the first image and the second image.

公开(公告)号：US08923476B2

公开(公告)日：2014-12-30

申请号：US13369217

申请日：2012-02-08

申请人： Ajay Paidi ,  Jonathan Maltz ,  Ali Bani-Hashemi

发明人： Ajay Paidi ,  Jonathan Maltz ,  Ali Bani-Hashemi

IPC分类号： A61B6/00 ,  G06T11/00

CPC分类号： G06T11/006 ,  G06T2211/408 ,  G06T2211/436

摘要： Some aspects include acquisition of a first plurality of projection images of a volume using a megavoltage x-ray source, each of the first plurality of projection images associated with a respective one of a first plurality of locations of the megavoltage x-ray source, acquisition of a second plurality of projection images of the volume using a kilovoltage x-ray source, each of the second plurality of projection images associated with a respective one of a second plurality of locations of the kilovoltage x-ray source, and performance of digital tomosynthesis reconstruction to generate a three-dimensional image of the volume based on the first plurality of projection images and the second plurality of projection images. The first axis may be perpendicular to the second axis.

摘要翻译： 一些方面包括使用兆伏级X射线源获取体积的第一多个投影图像，第一多个投影图像中的每一个与兆伏级x射线源的第一多个位置中的相应一个相关联，获取 使用千伏X射线源的体积的第二多个投影图像中的每一个与所述千伏X射线源的第二多个位置中的相应一个相关联的第二多个投影图像以及数字断层合成的执行 重构以基于第一多个投影图像和第二多个投影图像生成体积的三维图像。 第一轴线可以垂直于第二轴线。

公开(公告)号：US08861672B2

公开(公告)日：2014-10-14

申请号：US13298189

申请日：2011-11-16

申请人： Jonathan S. Maltz ,  Supratik Bose ,  Ali Bani-Hashemi ,  Ajay Paidi

发明人： Jonathan S. Maltz ,  Supratik Bose ,  Ali Bani-Hashemi ,  Ajay Paidi

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

CPC分类号： A61N5/1049 ,  A61B6/032 ,  A61B6/488 ,  A61B6/5223 ,  A61N2005/105 ,  A61N2005/1061

摘要： A system includes acquisition of a three-dimensional computed tomography image of a patient volume at a computed tomography scanner, acquisition of projection images of the patient volume located at an isocenter of a linear accelerator, and determination of a transformation between a coordinate system of the linear accelerator and a coordinate system of the three-dimensional computed tomography image based on the projection images.

摘要翻译： 一种系统包括在计算机断层摄影扫描仪中获取患者体积的三维计算机断层摄影图像，获取位于线性加速器的等角点处的患者体积的投影图像，以及确定坐标系的坐标系 线性加速器和基于投影图像的三维计算机断层摄影图像的坐标系。

公开(公告)号：US08582719B2

公开(公告)日：2013-11-12

申请号：US13081441

申请日：2011-04-06

申请人： Ali Bani-Hashemi ,  Jonathan Maltz

发明人： Ali Bani-Hashemi ,  Jonathan Maltz

IPC分类号： A61B6/02 ,  A61B6/00

CPC分类号： A61B6/025 ,  A61B6/027 ,  A61B6/4007 ,  A61B6/54 ,  A61N2005/1061

摘要： A system and method for tomosynthesis, the method including emitting a respective imaging x-ray from each of a plurality of imaging x-ray sources disposed in a fixed relation with respect to one another, acquiring x-ray absorption projections of an object, each of the x-ray absorption projections associated with an imaging x-ray emitted by a respective one of the plurality of imaging x-ray sources, and performing digital tomosynthesis using the x-ray absorption projections to generate a cross-sectional image of the object.

摘要翻译： 一种用于层析合成的系统和方法，所述方法包括从以相对于彼此固定关系设置的多个成像x射线源中的每一个发射相应的成像x射线，获取物体的x射线吸收投影，每个 与由所述多个成像x射线源中的相应一个发射的成像x射线相关联的X射线吸收投影，以及使用所述x射线吸收投影进行数字断层合成以产生所述物体的横截面图像 。

公开(公告)号：US20130090547A1

公开(公告)日：2013-04-11

申请号：US13269324

申请日：2011-10-07

申请人： Ali Bani-Hashemi

发明人： Ali Bani-Hashemi

IPC分类号： A61B5/055

CPC分类号： A61N5/1039 ,  A61B5/055 ,  A61N2005/105 ,  A61N2005/1054 ,  A61N2005/1091 ,  A61N2005/1094

摘要： A system includes acquisition of a first three-dimensional image of a patient volume using a magnetic resonance imaging scanner, acquisition of a second three-dimensional image of the patient volume using cone beam radiation emitted by the linear accelerator, and generation of a radiation treatment plan based on the first image and the second image.

摘要翻译： 一种系统包括使用磁共振成像扫描器获取患者体积的第一立体图像，使用由线性加速器发射的锥形束辐射获取患者体积的第二三维图像，以及产生放射治疗 基于第一图像和第二图像计划。

公开(公告)号：US20070025509A1

公开(公告)日：2007-02-01

申请号：US11181339

申请日：2005-07-13

申请人： Geordi Pang ,  Ali Bani-Hashemi ,  John Rowlands

发明人： Geordi Pang ,  Ali Bani-Hashemi ,  John Rowlands

IPC分类号： A61N5/10

CPC分类号： A61N5/1049 ,  A61B6/025 ,  A61B6/5288 ,  A61B6/583 ,  A61N5/1037 ,  A61N2005/1061

摘要： A 4-dimensional digital tomosynthesis system includes an x-ray source, an x-ray detector and a processor. The x-ray source is suitable for emitting x-ray beams to an object with a periodic motion. The periodic motion is divided into (n+1) time intervals, n being a positive integer. Each of the (n+1) time intervals is associated with a time instance ti, i=0, 1, 2, . . . , n. The x-ray detector is coupled to the x-ray source for acquiring projection radiographs of the object at each time instance ti for each scan angle based on the x-ray beams. The processor is communicatively coupled to the x-ray source and the x-ray detector for controlling the x-ray source and processing data received from the x-ray detector such that all projection radiographs acquired from all scan angles for each time instance ti are reconstructed and (n+1) sets of cross sections of the object are obtained. The cross section is either a coronal cross section or a sagittal cross section. Each of the (n+1) sets of cross sections is for a different time instance ti.

摘要翻译： 4维数字断层合成系统包括x射线源，x射线检测器和处理器。 x射线源适合于向具有周期运动的物体发射X射线束。 周期运动分为（n + 1）个时间间隔，n为正整数。 （n + 1）个时间间隔中的每一个与时间实例t i i i i，i = 0,1,2，...相关联。 。 。 ，n。 x射线检测器耦合到x射线源，用于基于X射线束针对每个扫描角度的每个时间实例t 1采集物体的投影射线照片。 处理器通信地耦合到x射线源和X射线检测器，用于控制x射线源和从x射线检测器接收的处理数据，使得对于每个时间t t从所有扫描角度获取的所有投影射线照片， SUB＆gt; i＆lt; i＆gt;被重构，并且获得对象的（n + 1）个横截面集合。 横截面是冠状截面或矢状截面。 第（n + 1）组横截面中的每一个都是用于不同的时间实例t 。