Radio-therapeutic treatment planning incorporating functional imaging information
    1.
    发明授权
    Radio-therapeutic treatment planning incorporating functional imaging information 有权
    包括功能成像信息的放射治疗治疗计划

    公开(公告)号:US07636420B2

    公开(公告)日:2009-12-22

    申请号:US11914765

    申请日:2006-05-01

    IPC分类号: A61N5/10 H05G1/42

    摘要: A radiation therapy planning procedure and device provides a model-based segmentation of co-registered anatomical and functional imaging information to provide a more precise radiation therapy plan. The biology-based segmentation models the imaging information to produce a parametric map, which is then clustered into regions of similar radiation sensitivity or other biological parameters relevant for treatment definition. Each clustered region is prescribed its own radiation prescription dose.

    摘要翻译: 辐射治疗计划程序和装置提供共同注册的解剖和功能成像信息的基于模型的分割,以提供更精确的放射治疗计划。 基于生物学的分割模拟成像信息以产生参数图,然后将其聚类到具有相似辐射敏感性的区域或与治疗定义相关的其他生物参数。 每个聚簇区域规定自己的辐射处方剂量。

    Radiotherapeutic Treatment Plan Adaptation
    2.
    发明申请
    Radiotherapeutic Treatment Plan Adaptation 有权
    放射治疗计划适应

    公开(公告)号:US20110103551A1

    公开(公告)日:2011-05-05

    申请号:US11573564

    申请日:2005-07-28

    IPC分类号: A61N5/10

    摘要: In a radiation therapy method, one or more planning images are acquired (102) of a subject. Features of at least malignant tissue are contoured in the one or more planning images to produce one or more initial feature contours. One or more treatment images of the subject are acquired (114). The one or more initial feature contours are updated (122) based on the one or more treatment images. Radiation treatment parameters are optimized (126) based upon the updated one or more feature contours. Radiation treatment of the subject is performed (130) using the optimized parameters.

    摘要翻译: 在放射治疗方法中,获取对象的一个​​或多个规划图像(102)。 至少恶性组织的特征在一个或多个规划图像中具有轮廓,以产生一个或多个初始特征轮廓。 获取对象的一个​​或多个处理图像(114)。 一个或多个初始特征轮廓基于一个或多个治疗图像被更新(122)。 基于更新的一个或多个特征轮廓对辐射处理参数进行优化(126)。 使用优化的参数进行受试者的放射治疗(130)。

    Radio-Therapeutic Treatment Planning Incorporating Functional Imaging Information
    3.
    发明申请
    Radio-Therapeutic Treatment Planning Incorporating Functional Imaging Information 有权
    放射治疗计划纳入功能成像信息

    公开(公告)号:US20080267351A1

    公开(公告)日:2008-10-30

    申请号:US11914765

    申请日:2006-05-01

    IPC分类号: A61N5/10 H05G1/42

    摘要: A radiation therapy planning procedure and device provides a model-based segmentation of co-registered anatomical and functional imaging information to provide a more precise radiation therapy plan. The biology-based segmentation models the imaging information to produce a parametric map, which is then clustered into regions of similar radiation sensitivity or other biological parameters relevant for treatment definition. Each clustered region is prescribed its own radiation prescription dose.

    摘要翻译: 辐射治疗计划程序和装置提供共同注册的解剖和功能成像信息的基于模型的分割,以提供更精确的放射治疗计划。 基于生物学的分割模拟成像信息以产生参数图,然后将其聚类到具有相似辐射敏感性的区域或与治疗定义相关的其他生物参数。 每个聚簇区域规定自己的辐射处方剂量。

    Radial adaptive filter for metal artifact correction
    4.
    发明授权
    Radial adaptive filter for metal artifact correction 有权
    用于金属伪影校正的径向自适应滤波器

    公开(公告)号:US07991243B2

    公开(公告)日:2011-08-02

    申请号:US11815215

    申请日:2006-02-01

    IPC分类号: G06K9/40 G06K9/00 A61B6/00

    CPC分类号: G06T11/008

    摘要: A diagnostic imaging system (10) corrects metal artifact streaks (38) emanating from a metal object (36) in a tomographic image (T). A first processor (40) reduces streaks (38) caused by mild artifacts by applying an adaptive filter (82). The filter (82) is perpendicularly oriented toward the center of the metal object (36). The weight of the filter (82) is a function of the local structure tensor and the vector pointing to the metal object (36). If it is determined that the strong artifacts are present in the image, a second processor (48) applies a sinogram completed image algorithm to correct for severe artifacts in the image. The sinogram completed image and adaptively filtered image are fused to a final corrected image. In the fusion process, highly corrupted tomographic regions are replaced by the result of the sinogram completed image and the remainder is replaced by the adaptively filtered image.

    摘要翻译: 诊断成像系统(10)校正在断层图像(T)中从金属物体(36)发出的金属假象条纹(38)。 第一处理器(40)通过应用自适应滤波器(82)来减少由温和伪影引起的条纹(38)。 过滤器(82)朝向金属物体(36)的中心垂直取向。 过滤器(82)的重量是局部结构张量和指向金属物体(36)的矢量的函数。 如果确定图像中存在强伪像,则第二处理器(48)施加正弦图完成图像算法以校正图像中的严重伪像。 正弦图完成图像和自适应滤波图像融合到最终校正图像。 在融合过程中,高度破坏的断层摄影区域被正弦图完成图像的结果所替代,其余部分由自适应滤波图像代替。

    Radiotherapeutic treatment plan adaptation
    5.
    发明授权
    Radiotherapeutic treatment plan adaptation 有权
    放射治疗计划适应

    公开(公告)号:US08306185B2

    公开(公告)日:2012-11-06

    申请号:US11573564

    申请日:2005-07-28

    IPC分类号: A61N5/10

    摘要: In a radiation therapy method, one or more planning images are acquired (102) of a subject. Features of at least malignant tissue are contoured in the one or more planning images to produce one or more initial feature contours. One or more treatment images of the subject are acquired (114). The one or more initial feature contours are updated (122) based on the one or more treatment images. Radiation treatment parameters are optimized (126) based upon the updated one or more feature contours. Radiation treatment of the subject is performed (130) using the optimized parameters.

    摘要翻译: 在放射治疗方法中,获取对象的一个​​或多个规划图像(102)。 至少恶性组织的特征在一个或多个规划图像中具有轮廓,以产生一个或多个初始特征轮廓。 获取对象的一个​​或多个处理图像(114)。 一个或多个初始特征轮廓基于一个或多个治疗图像被更新(122)。 基于更新的一个或多个特征轮廓对辐射处理参数进行优化(126)。 使用优化的参数进行受试者的放射治疗(130)。

    Radial Adaptive Filter for Metal Artifact Correction
    6.
    发明申请
    Radial Adaptive Filter for Metal Artifact Correction 有权
    用于金属人工制品校正的径向自适应滤波器

    公开(公告)号:US20080152203A1

    公开(公告)日:2008-06-26

    申请号:US11815215

    申请日:2006-02-01

    IPC分类号: G06K9/00

    CPC分类号: G06T11/008

    摘要: A diagnostic imaging system (10) corrects metal artifact streaks (38) emanating from a metal object (36) in a tomographic image (T). A first processor (40) reduces streaks (38) caused by mild artifacts by applying an adaptive filter (82). The filter (82) is perpendicularly oriented toward the center of the metal object (36). The weight of the filter (82) is a function of the local structure tensor and the vector pointing to the metal object (36). If it is determined that the strong artifacts are present in the image, a second processor (48) applies a sinogram completed image algorithm to correct for severe artifacts in the image. The sinogram completed image and adaptively filtered image are fused to a final corrected image. In the fusion process, highly corrupted tomographic regions are replaced by the result of the sinogram completed image and the remainder is replaced by the adaptively filtered image.

    摘要翻译: 诊断成像系统(10)校正在断层图像(T)中从金属物体(36)发出的金属假象条纹(38)。 第一处理器(40)通过应用自适应滤波器(82)来减少由温和伪影引起的条纹(38)。 过滤器(82)朝向金属物体(36)的中心垂直取向。 过滤器(82)的重量是局部结构张量和指向金属物体(36)的向量的函数。 如果确定图像中存在强伪像,则第二处理器(48)施加正弦图完成图像算法以校正图像中的严重伪像。 正弦图完成图像和自适应滤波图像融合到最终校正图像。 在融合过程中,高度破坏的断层摄影区域被正弦图完成图像的结果所替代,其余部分由自适应滤波图像代替。

    Knowledge-based input region of interest definition for pharmacokinetic modeling
    7.
    发明授权
    Knowledge-based input region of interest definition for pharmacokinetic modeling 失效
    基于知识的输入兴趣定义为药代动力学建模

    公开(公告)号:US08103609B2

    公开(公告)日:2012-01-24

    申请号:US12067481

    申请日:2006-09-13

    IPC分类号: G06F17/00 G06N5/02

    摘要: A system, apparatus, and method are based on a priori knowledge of the shape of the input function for defining an input region-if-interest (ROI) in pharmacokinetic modeling. Kinetic parameter estimation requires knowledge of tracer input activity and the present invention provides an automatic way to define an ROI for estimation of an input function that takes into account a priori knowledge of the shape of the input function based on an administered dose.

    摘要翻译: 系统,装置和方法基于用于在药代动力学建模中定义输入区域 - 如果兴趣(ROI)的输入函数的形状的先验知识。 动力学参数估计需要了解示踪剂输入活动的知识,并且本发明提供了一种自动方式来定义用于估计输入功能的ROI,其基于施用的剂量考虑到输入功能的形状的先验知识。

    Patient scan time optimization for PET/SPECT imaging
    8.
    发明授权
    Patient scan time optimization for PET/SPECT imaging 有权
    PET / SPECT成像的患者扫描时间优化

    公开(公告)号:US08064672B2

    公开(公告)日:2011-11-22

    申请号:US12088088

    申请日:2006-09-15

    IPC分类号: G06K9/00

    CPC分类号: A61B6/00 A61B6/037

    摘要: An imaging system (10) comprises a data device (30), which controls radiation data acquisition from a subject positioned in an examination region (18) for an examination. A rebinning processor (40) bins the acquired data periodically into a histogram (42). A transform (70) transforms the histogram (42) into individual independent or uncorrelated components, each component including a signal content and a noise content. A stopping determining device (52) compares an aspect of at least one selected component to a predetermined threshold (TH) and, based on the comparison, terminates the data acquisition.

    摘要翻译: 成像系统(10)包括数据装置(30),其控制从位于检查区域(18)中的被摄体进行检查的辐射数据采集。 重组处理器(40)将获取的数据周期性地存储到直方图(42)中。 变换(70)将直方图(42)变换为独立的或不相关的分量,每个分量包括信号内容和噪声内容。 停止确定装置(52)将至少一个所选择的组件的方面与预定阈值(TH)进行比较,并且基于该比较,终止数据采集。

    Reconstruction of local patient doses in computed tomography
    9.
    发明授权
    Reconstruction of local patient doses in computed tomography 有权
    计算机断层扫描中局部患者剂量的重建

    公开(公告)号:US07787669B2

    公开(公告)日:2010-08-31

    申请号:US10543567

    申请日:2004-01-19

    IPC分类号: G06K9/00

    摘要: In order to reduce an x-ray dose applied to a patient, it is necessary to know the dose absorbed by the patient. According to the present invention, there is provided a method of determining a local patient dose applied to a patient where after the reconstruction of the scan data into a diagnostic image, the scan data are backprojected into the patient volume, using the attenuation information of the diagnostic image to form a spatially varying photon fluence map. In parallel, the diagnostic image is segmented into anatomical structures to which dose-weighting factors are assigned. The locally absorbed dose is then calculated on the basis of the fluence map and the corresponding dose weights.

    摘要翻译: 为了减少施加到患者的x射线剂量,需要知道患者吸收的剂量。 根据本发明,提供了一种确定施用于患者的局部患者剂量的方法,其中在将扫描数据重建为诊断图像之后,使用所述扫描数据的衰减信息将扫描数据反向投影到患者体积中 诊断图像形成空间变化的光子注量图。 并行地,诊断图像被分割成分配给剂量加权因子的解剖结构。 然后根据注量图和相应的剂量重量计算局部吸收剂量。

    System for the noninvasive determination of tracer concentration in blood
    10.
    发明授权
    System for the noninvasive determination of tracer concentration in blood 失效
    用于无创测定血液中示踪剂浓度的系统

    公开(公告)号:US08617072B2

    公开(公告)日:2013-12-31

    申请号:US11569437

    申请日:2005-05-20

    IPC分类号: A61B5/00

    摘要: The invention relates to a general composite compartmental model and a compartmental analysis procedure to extract non-invasively the concentration (Cp) of the imaging agent in plasma (301), in metabolites (304, 504) and in blood elements (303) (like red cells, platelets, plasma protein etc.) from time signal curves measured within a reference tissue region (200). This is made possible by deploying an injection function (SINJ(t)) as input which models the amount of imaging agent administered to the patient as a function of time. The invention allows the presentation of the plasma input function to the medical practitioner without the need for invasively drawing blood samples.

    摘要翻译: 本发明涉及一般的复合区室模型和隔室分析程序,其非侵入性地提取血浆(301),代谢物(304,504)和血液元件(303)中的成像剂的浓度(Cp)(如 红细胞,血小板,血浆蛋白等)从参考组织区域(200)中测量的时间信号曲线。 这是通过部署注射功能(SINJ(t))作为对作为时间的函数对患者施用的成像剂的量进行建模的输入而实现的。 本发明允许向医生介绍等离子体输入功能,而不需要侵入性地抽取血液样本。