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40 条记录 (耗时 0.058 秒)

    NON-VOXEL-BASED BROAD-BEAM (NVBB) ALGORITHM FOR INTENSITY MODULATED RADIATION THERAPY DOSE CALCULATION AND PLAN OPTIMIZATION
    31.
    发明申请
    NON-VOXEL-BASED BROAD-BEAM (NVBB) ALGORITHM FOR INTENSITY MODULATED RADIATION THERAPY DOSE CALCULATION AND PLAN OPTIMIZATION 有权
    用于强度调制辐射治疗剂量计算和计划优化的非基于VOXEL的BROAD-BEAM（NVBB）算法

    公开(公告)号：US20110122997A1

    公开(公告)日：2011-05-26

    申请号：US12915618

    申请日：2010-10-29

    申请人： Weiguo Lu ,  Mingli Chen ,  Quan Chen ,  Kenneth J. Ruchala

    发明人： Weiguo Lu ,  Mingli Chen ,  Quan Chen ,  Kenneth J. Ruchala

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1031 ,  A61N5/1042 ,  A61N5/1045

    摘要： A method of calculating a dose distribution for a patient for use in a radiation therapy treatment plan. The method includes acquiring an image of a volume within the patient, defining a radiation source, and defining a reference plane oriented between the radiation source and the patient. The method also includes generating a radiation therapy treatment plan, wherein the plan includes a plurality of rays that extend between the radiation source and the patient volume, and calculating a three-dimensional dose volume for the patient volume from the plurality of rays that intersect the reference plane without first having to independently calculate a dose distribution on each of the plurality of rays. The method can also include displaying the three-dimensional dose volume.

    摘要翻译： 计算用于放射治疗治疗计划中的患者的剂量分布的方法。 该方法包括获取患者体内的体积的图像，限定辐射源，以及定义在辐射源和患者之间定向的参考平面。 该方法还包括产生放射治疗治疗计划，其中该计划包括在辐射源和患者体积之间延伸的多条射线，以及从与所述辐射源和患者体积相交的多个射线计算患者体积的三维剂量体积 不必首先必须独立地计算多个光线中的每一个上的剂量分布。 该方法还可以包括显示三维剂量体积。

    Megavoltage computed tomography during radiotherapy
    34.
    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。

    Non-voxel-based broad-beam (NVBB) algorithm for intensity modulated radiation therapy dose calculation and plan optimization
    36.
    发明授权
    Non-voxel-based broad-beam (NVBB) algorithm for intensity modulated radiation therapy dose calculation and plan optimization 有权
    用于强度调制放射治疗剂量计算和计划优化的基于非体素的宽波束（NVBB）算法

    公开(公告)号：US08401148B2

    公开(公告)日：2013-03-19

    申请号：US12915618

    申请日：2010-10-29

    申请人： Weiguo Lu ,  Mingli Chen ,  Quan Chen ,  Kenneth J. Ruchala

    发明人： Weiguo Lu ,  Mingli Chen ,  Quan Chen ,  Kenneth J. Ruchala

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1031 ,  A61N5/1042 ,  A61N5/1045

    摘要： A method of calculating a dose distribution for a patient for use in a radiation therapy treatment plan. The method includes acquiring an image of a volume within the patient, defining a radiation source, and defining a reference plane oriented between the radiation source and the patient. The method also includes generating a radiation therapy treatment plan, wherein the plan includes a plurality of rays that extend between the radiation source and the patient volume, and calculating a three-dimensional dose volume for the patient volume from the plurality of rays that intersect the reference plane without first having to independently calculate a dose distribution on each of the plurality of rays. The method can also include displaying the three-dimensional dose volume.

    摘要翻译： 计算用于放射治疗治疗计划中的患者的剂量分布的方法。 该方法包括获取患者体内的体积的图像，限定辐射源，以及定义在辐射源和患者之间定向的参考平面。 该方法还包括产生放射治疗治疗计划，其中该计划包括在辐射源和患者体积之间延伸的多条射线，以及从与所述辐射源和患者体积相交的多个射线计算患者体积的三维剂量体积 不必首先必须独立地计算多个光线中的每一个上的剂量分布。 该方法还可以包括显示三维剂量体积。

    SYSTEM AND METHOD FOR CALIBRATING AND POSITIONING A RADIATION THERAPY TREATMENT TABLE
    37.
    发明申请
    SYSTEM AND METHOD FOR CALIBRATING AND POSITIONING A RADIATION THERAPY TREATMENT TABLE 审中-公开
    用于校准和定位辐射治疗表的系统和方法

    公开(公告)号：US20120330085A1

    公开(公告)日：2012-12-27

    申请号：US13545545

    申请日：2012-07-10

    申请人： Kenneth J. Ruchala ,  Adam Schloesser ,  Eric Schloesser ,  David Murray

    发明人： Kenneth J. Ruchala ,  Adam Schloesser ,  Eric Schloesser ,  David Murray

    IPC分类号： A61N5/10

    CPC分类号： A61B6/0457 ,  A61B6/584 ,  A61N5/1049 ,  A61N5/107 ,  A61N2005/1051 ,  A61N2005/1057

    摘要： A system and method for calibrating and positioning a radiation therapy treatment table with a high degree of precision and accuracy. The treatment table includes radiographic indexing markers embedded or inlaid therein. The radiographic indexing markers can include a density different from density of the table material, or a radio-frequency or magnetic contrasting matter, something that the imaging system and detector of the radiation therapy system can detect, so that when scanned, with or without a patient or phantom on the table, the precise location of the patient treatment table in the x, y and z planes is known. This is important so that the table may be reconstructed, alone or with a phantom on it, by the radiation therapy system software, providing a very good indication of where the table top is prior to treatment.

    摘要翻译： 一种以高精度和精确度校准和定位放射治疗治疗台的系统和方法。 治疗台包括嵌入或嵌入其中的射线照相索引标记。 射线照相索引标记可以包括与桌子材料的密度不同的密度，或射频或磁性对比物质，放射治疗系统的成像系统和检测器可以检测的东西，使得当被扫描时，具有或不具有 患者或幻影在桌子上，患者治疗台在x，y和z平面上的精确位置是已知的。 这是很重要的，因此可以通过放射治疗系统软件单独或用幻影重建桌子，从而提供了桌面在治疗之前在哪里的非常好的指示。

    Method and system for improved image segmentation
    39.
    发明申请
    Method and system for improved image segmentation 有权
    改进图像分割的方法和系统

    公开(公告)号：US20090226060A1

    公开(公告)日：2009-09-10

    申请号：US12380829

    申请日：2009-03-04

    申请人： David T. Gering ,  Kenneth J. Ruchala

    发明人： David T. Gering ,  Kenneth J. Ruchala

    IPC分类号： G06K9/00

    CPC分类号： G06T7/174 ,  G06T7/11 ,  G06T7/143 ,  G06T2207/10081 ,  G06T2207/20128 ,  G06T2207/30004

    摘要： A system and method of identifying anatomical structures in a patient. The method includes the acts of acquiring an image of the patient, the image including a set of image elements; segmenting the image to categorize each image elements according to its substance; computing the probability that the categorization of each image element is correct; resegmenting the image starting with image elements that have a high probability and progressing to image elements with lower probabilities; aligning at least one of the image elements with an anatomical atlas; and fitting the anatomical atlas to the segmented image.

    摘要翻译： 一种识别患者解剖结构的系统和方法。 该方法包括获取患者图像的动作，该图像包括一组图像元素; 分割图像以根据其实质对每个图像元素进行分类; 计算每个图像元素的分类正确的概率; 从具有较高概率的图像元素开始重新分割图像，并且以较低概率进展到图像元素; 将至少一个图像元素与解剖图谱对准; 并将解剖图谱装配到分割图像。