利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

28 条记录 (耗时 0.029 秒)

    Method using post-patient radiation monitor to verify entrance radiation and dose in a radiation therapy machine
    12.
    发明授权
    Method using post-patient radiation monitor to verify entrance radiation and dose in a radiation therapy machine 有权
    使用病人放射线监测器的方法来验证放射治疗机中的入射辐射和剂量

    公开(公告)号：US06438202B1

    公开(公告)日：2002-08-20

    申请号：US09555468

    申请日：2000-05-30

    申请人： Gustavo H. Olivera ,  Jeffrey M. Kapatoes ,  Thomas R. Mackie ,  Paul J. Reckwerdt ,  Edward E. Fitchard ,  Julie C. Zachman

    发明人： Gustavo H. Olivera ,  Jeffrey M. Kapatoes ,  Thomas R. Mackie ,  Paul J. Reckwerdt ,  Edward E. Fitchard ,  Julie C. Zachman

    IPC分类号： A61N510

    CPC分类号： A61N5/1048 ,  A61N5/103 ,  A61N5/1042

    摘要： In radiotherapy, a high quality imaging array may be placed after the patient and opposite the radiation source to be used during radiation treatment to verify operation of a shutter system or similar device and/or to compute dose delivered to the patient. A model of the patient may be used and inverted in order to estimate values of energy fluence prior to absorption by the patient and overlapping of the various radiation beams passing through the patient. A test pattern of shutter excitation to illuminate a single ray at a time provides a simple method of obtaining the necessary model. The dose from this test pattern may be subtracted from the subsequent radiation treatment so as to provide limited or no increase in total dose to the patient.

    摘要翻译： 在放射治疗中，高质量的成像阵列可以放置在患者之后并且与辐射源相反的放射治疗期间使用以验证快门系统或类似装置的操作和/或计算递送给患者的剂量。 可以使用和倒置患者的模型，以便在患者吸收之前估计能量注量的值，并且通过穿过患者的各种辐射束的重叠。 快速激发以一次照射单根光线的测试图案提供了一种获得必要模型的简单方法。 可以从随后的放射治疗中减去来自该测试图案的剂量，以便向患者提供总剂量的有限或不增加。

    System and method of evaluating dose delivered by a radiation therapy system
    16.
    发明授权
    System and method of evaluating dose delivered by a radiation therapy system 有权
    评估放射治疗系统传递的剂量的系统和方法

    公开(公告)号：US07839972B2

    公开(公告)日：2010-11-23

    申请号：US11459097

    申请日：2006-07-21

    申请人： Kenneth J. Ruchala ,  Gustavo H. Olivera ,  Eric Schnarr ,  Weiguo Lu ,  Thomas R. Mackie

    发明人： Kenneth J. Ruchala ,  Gustavo H. Olivera ,  Eric Schnarr ,  Weiguo Lu ,  Thomas R. Mackie

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1048 ,  A61N5/1037 ,  A61N5/1038 ,  A61N5/1049 ,  A61N5/1067 ,  A61N5/107 ,  A61N5/1071 ,  A61N2005/1072

    摘要： A system and method of evaluating dose delivered by a radiation therapy system using a marker that indicates motion. The marker is associated with the patient. In one method of operation, the method includes delivering radiation to the patient, monitoring motion of the marker during the delivering radiation, and evaluating a dose delivered to the patient based at least in part on the motion of the marker. In another method of operation, the method includes delivering radiation to the patient, obtaining information relating to the delivery of radiation, estimating dose to the marker based at least in part on the information, acquiring dose received by the marker, and comparing the received dose with the estimated dose.

    摘要翻译： 一种评估使用指示运动的标记的放射治疗系统递送的剂量的系统和方法。 标记与患者相关联。 在一种操作方法中，该方法包括向患者传送辐射，监测在递送辐射期间标记物的运动，以及至少部分地基于标记物的运动评估递送给患者的剂量。 在另一种操作方法中，所述方法包括向患者传送辐射，获得与辐射传递相关的信息，至少部分地基于所述信息估计所述标记的剂量，获取由所述标记接收的剂量，以及将所述接收剂量 与估计剂量。

    Megavoltage computed tomography during radiotherapy
    17.
    发明授权
    Megavoltage computed tomography during radiotherapy 有权
    放射治疗期间的Megavoltage计算机断层扫描

    公开(公告)号：US06618467B1

    公开(公告)日：2003-09-09

    申请号：US09913084

    申请日：2001-08-09

    申请人： Kenneth J. Ruchala ,  Gustavo H. Olivera ,  Thomas R. Mackie

    发明人： Kenneth J. Ruchala ,  Gustavo H. Olivera ,  Thomas R. Mackie

    IPC分类号： A61N510

    CPC分类号： A61B6/032 ,  A61B6/06 ,  A61N5/1042 ,  A61N5/1048

    摘要： Reduced dose megavoltage CT images are obtained using low flux data resulting from leakage through modulating shutters and/or collected by other means and augmented by incomplete high flux data collected during radiation therapy. The ability to construct tomographic projection sets from significantly varying flux rate data is provided by the use of air scans windowed to account for variations in mechanical leaf movement. These methods are also provide a means of imaging the patient entirely during radiation therapy treatments without any additional scan time.

    摘要翻译： 使用由通过调制百叶窗泄漏和/或通过其他方式收集而产生的低通量数据获得减少的剂量兆伏特CT图像，并且通过在放射治疗期间收集的不完全高通量数据增加。 通过使用窗口化的空气扫描来解释机械叶片运动的变化，提供了从显着变化的通量速率数据构建断层摄影投影集的能力。 这些方法还提供了在放射治疗治疗期间完全对患者进行成像的手段，而没有任何额外的扫描时间。

    Delivery modification system for radiation therapy
    18.
    发明授权
    Delivery modification system for radiation therapy 有权
    辐射治疗交付修改系统

    公开(公告)号：US06385286B1

    公开(公告)日：2002-05-07

    申请号：US09582538

    申请日：2000-06-28

    申请人： Edward E. Fitchard ,  Gustavo H. Olivera ,  Paul J. Reckwerdt ,  Thomas R. Mackie

    发明人： Edward E. Fitchard ,  Gustavo H. Olivera ,  Paul J. Reckwerdt ,  Thomas R. Mackie

    IPC分类号： A61N510

    CPC分类号： A61N5/1042 ,  A61N5/1037 ,  A61N5/1048 ,  A61N5/1049 ,  A61N5/1064 ,  A61N5/1067 ,  G06F19/00

    摘要： Radiotherapy controlling, treatment sinograms may be directly modified to correct for real time motion of patients or portions of patients resulting from physiological or other activity. Precalculated partial sinograms representing treatments of portions of a patient may be assembled to obtain a treatment sinogram for the entire patient without delay from conventional planning software. The partial sinograms are modified as representations of their corresponding portions and manipulated to conform to the particular dimensions of an actual patient. This constructed sinogram may be used directly or as a starting point for iterative optimization.

    摘要翻译： 可以直接修改放射治疗控制，治疗心尖图以纠正由生理或其他活动引起的患者或部分患者的实时运动。 可以组装代表患者部分的治疗的预先计算的部分正弦图，以便从传统的规划软件中不间断地获得整个患者的治疗心律图。 部分正弦图被修改为其对应部分的表示，并被操纵以符合实际患者的特定尺寸。 该构造的正弦图可以直接使用或作为迭代优化的起点。