User Interface for Motion Analysis in Kinematic Mr Studies
    11.
    发明申请
    User Interface for Motion Analysis in Kinematic Mr Studies 有权
    运动分析用户界面

    公开(公告)号:US20080069418A1

    公开(公告)日:2008-03-20

    申请号:US11814406

    申请日:2006-01-05

    IPC分类号: G06K9/00

    摘要: In a diagnostic imaging system (10), a user interface (82) facilitates viewing of 4D kinematic data sets. A set of reference points is selected in a first 3D image to designate an anatomical component. An algorithm (104) calculates a propagation of the selected reference points from the first 3D image into other 3D images. Transforms which describe the propagation of the reference points between 3D images are defined. An aligning algorithm (112) applies inverse of the transforms to the 3D images to define a series of frames for the video processor (120) to display, in which frames the designated anatomical component defined by the reference points in each of the 3D images remains fixed while the other portions of the anatomical region of interest move relative to the fixed designated anatomical component.

    摘要翻译: 在诊断成像系统(10)中,用户界面(82)便于观看4D运动数据集。 在第一3D图像中选择一组参考点以指定解剖组件。 算法(104)计算所选择的参考点从第一3D图像到其他3D图像的传播。 定义描述3D图像之间参考点传播的变换。 对准算法(112)将变换的逆向应用于3D图像以定义用于视频处理器(120)显示的一系列帧,其中由每个3D图像中的参考点定义的指定解剖组件保留 固定,而感兴趣的解剖区域的其他部分相对于固定的指定解剖部件移动。

    Organ-specific enhancement filter for robust segmentation of medical images
    12.
    发明授权
    Organ-specific enhancement filter for robust segmentation of medical images 有权
    器官专用增强滤波器,用于医疗图像的鲁棒分割

    公开(公告)号:US09087259B2

    公开(公告)日:2015-07-21

    申请号:US13812057

    申请日:2011-07-25

    IPC分类号: G06K9/34 G06T7/00

    摘要: An imager (10) and a reconstruction processor (12) generate an intensity image (14). A region containing a target volume is identified (20) and limited (24). A classifier (30) operates on the voxels in the limited volume with an enhancement filter to generate an enhanced image, such as an image whose voxel values represent a probability that each voxel is in the target volume. A segmentation processor (40) segments the enhanced image to identify the surface of the target volume to generate a segmented image which is displayed on a monitor (52) or used in a radiation therapy planning system (54).

    摘要翻译: 成像器(10)和重建处理器(12)产生强度图像(14)。 识别包含目标体积的区域(20)并限制(24)。 分类器(30)通过增强滤波器对有限体积中的体素进行操作以生成增强图像,例如其体素值表示每个体素在目标体积中的概率的图像。 分割处理器(40)分割增强图像以识别目标体积的表面以产生显示在监视器(52)上或在放射治疗计划系统(54)中使用的分割图像)。

    Interactive image segmentation
    13.
    发明授权
    Interactive image segmentation 有权
    交互式图像分割

    公开(公告)号:US08698795B2

    公开(公告)日:2014-04-15

    申请号:US12863462

    申请日:2009-01-07

    IPC分类号: G06T15/00 G06K9/00

    摘要: When adapting models of anatomical structures in a patient for diagnosis or therapeutic planning, an atlas (26) of predesigned anatomical structure models or image volumes can be accessed, and a segmentation of one or more such structures can be selected and overlaid on an a 3D image of corresponding structure(s) in a clinical image (52) of a patient. A user can click on an initially unapproved segmentation 5 landmark (72) on the patient image (52), reposition the unapproved landmark, and approve the repositioned landmark. Remaining unapproved landmarks (72) are then repositioned as a function of the position of the approved landmark (92) using one or more interpolation techniques to adapt the model to the patient image on the fly.

    摘要翻译: 当适应用于诊断或治疗计划的患者中的解剖结构的模型时,可以访问预先设计的解剖结构模型或图像体积的图集(26),并且可以选择并覆盖在3D上的一个或多个这样的结构的分割 在患者的临床图像(52)中的相应结构的图像。 用户可以点击患者图像(52)上的最初未被批准的分割5地标(72),重新定位未经批准的地标,并批准重新定位的地标。 然后,使用一种或多种内插技术将剩余的未经批准的地标(72)重新定位为批准的地标(92)的位置的函数,以使模型在飞行中适应患者图像。

    ORGAN-SPECIFIC ENHANCEMENT FILTER FOR ROBUST SEGMENTATION OF MEDICAL IMAGES
    14.
    发明申请
    ORGAN-SPECIFIC ENHANCEMENT FILTER FOR ROBUST SEGMENTATION OF MEDICAL IMAGES 有权
    有机特异性增强过滤器用于医疗图像的稳健分割

    公开(公告)号:US20130121549A1

    公开(公告)日:2013-05-16

    申请号:US13812057

    申请日:2011-07-25

    IPC分类号: G06K9/34

    摘要: An imager (10) and a reconstruction processor (12) generate an intensity image (14). A region containing a target volume is identified (20) and limited (24). A classifier (30) operates on the voxels in the limited volume with an enhancement filter to generate an enhanced image, such as an image whose voxel values represent a probability that each voxel is in the target volume. A segmentation processor (40) segments the enhanced image to identify the surface of the target volume to generate a segmented image which is displayed on a monitor (52) or used in a radiation therapy planning system (54).

    摘要翻译: 成像器(10)和重建处理器(12)产生强度图像(14)。 识别包含目标体积的区域(20)并限制(24)。 分类器(30)通过增强滤波器对有限体积中的体素进行操作以生成增强图像,例如其体素值表示每个体素在目标体积中的概率的图像。 分割处理器(40)分割增强图像以识别目标体积的表面以产生显示在监视器(52)上或在放射治疗计划系统(54)中使用的分割图像)。

    Data representation for rtp
    15.
    发明授权
    Data representation for rtp 有权
    rtp的数据表示

    公开(公告)号:US08260013B2

    公开(公告)日:2012-09-04

    申请号:US11719781

    申请日:2005-11-04

    IPC分类号: G06K9/00

    摘要: An imaging system (10) includes imaging modalities such as a PET imaging system (12) and a CT scanner (14). The CT scanner (14) is used to produce a first image (62) which is used for primary contouring. The PET system (12) is used to provide a second image (56), which provides complementary information about the same or overlapping anatomical region. After first and second images (62, 56) are registered with one another the first and second images (62, 56) are concurrently segmented to outline a keyhole (76). The keyhole portion of the second image (56) is inserted into the keyhole (76) of the first image (62). The user can observe the composite image and deform a boundary (78) of the keyhole (76) by a mouse (52) to better focus on the region of interest within previously defined keyhole.

    摘要翻译: 成像系统(10)包括诸如PET成像系统(12)和CT扫描仪(14)之类的成像模式。 CT扫描器(14)用于产生用于初级轮廓的第一图像(62)。 PET系统(12)用于提供第二图像(56),其提供关于相同或重叠解剖区域的补充信息。 在第一和第二图像(62,56)之间彼此对准之后,第一和第二图像(62,56)被同时分割以勾勒一个键孔(76)。 第二图像(56)的锁孔部分插入第一图像(62)的键孔(76)中。 用户可以观察合成图像并且通过鼠标(52)使键孔(76)的边界(78)变形以更好地聚焦在先前定义的键孔内的感兴趣区域上。

    Method of accounting for tumor motion in radiotherapy treatment
    18.
    发明授权
    Method of accounting for tumor motion in radiotherapy treatment 有权
    放射治疗肿瘤移动计算方法

    公开(公告)号:US07596207B2

    公开(公告)日:2009-09-29

    申请号:US11995337

    申请日:2006-07-10

    IPC分类号: A61N5/10 G01N23/04

    摘要: A method and apparatus accounting for tumor motion during radiation therapy is provided. The method allows for radiation therapy treatments based on updated radiation therapy plans. For each fractionate radiation treatment that results in an updated radiation treatment, radiation treatment images are acquired, automatically segmented, and then subject to deformable registration to develop updated contours and an updated radiation therapy plan.

    摘要翻译: 提供了放射治疗期间肿瘤移动的方法和装置。 该方法允许基于更新的放射治疗计划的放射治疗治疗。 对于导致更新的辐射治疗的每个分级放射治疗,获取放射治疗图像,自动分割,然后进行变形注册以开发更新的轮廓和更新的放射治疗计划。

    Method of Model-Based Elastic Image Registration For Comparing a First and a Second Image
    19.
    发明申请
    Method of Model-Based Elastic Image Registration For Comparing a First and a Second Image 审中-公开
    用于比较第一和第二图像的基于模型的弹性图像配准的方法

    公开(公告)号:US20080205719A1

    公开(公告)日:2008-08-28

    申请号:US11917155

    申请日:2006-06-14

    IPC分类号: G06K9/00

    摘要: The invention aims at improving the point-based elastic registration paradigm. Point-based elastic registration is typically carried out by finding corresponding point landmarks (2, 4) in both images and using the point correspondences as constraints to interpolate the global displacement field. A limitation of this approach is that it only ensures the correspondences between structures where point landmarks (2, 4) can be identified. Alternative concepts are limited by high computational costs for optimization. The concept of the invention provides a method and a system (1) wherein additional deformation field constraints are imposed by: partitioning (PART (IS, IT)) one or more restricted structures corresponding in the first (3) and the second (5) image and imposing additional constraints (fAddpart) derived from a-priori-knowledge to the one or more restricted structures. Preferred examples are i) pairs of interactively defined point landmarks (25), ii) landmarks resulting from automatic identification of corresponding structures in form of a line (23) or an area (27) or a form or a boundary (29, FIG. 3) thereof, iii) different material properties (tissue1, tissue2) of corresponding structures, iv) physiological constraints establishing more general correspondences.

    摘要翻译: 本发明旨在改进基于点的弹性登记范例。 基于点的弹性配准通常通过在两个图像中找到对应的点地标(2,4)并且使用点对应作为内插全局位移场的约束来执行。 这种方法的局限性在于,它只能确保可以识别点地标(2,4)的结构之间的对应关系。 替代的概念受到优化的高计算成本的限制。 本发明的概念提供了一种方法和系统(1),其中通过以下方式来施加附加的变形场约束:一个或多个分割(一个或多个) 在第一(3)和第二(5)图像中对应的更受限制的结构,并且从先验知识导出的附加约束(f 添加部分)到一个 或更多受限的结构。 优选示例是i)交互式定义的点地标对(25),ii)以线(23)或区域(27)或形式或边界(29,

    Analysis of pulmonary CT data
    20.
    发明授权
    Analysis of pulmonary CT data 有权
    肺CT数据分析

    公开(公告)号:US07356173B2

    公开(公告)日:2008-04-08

    申请号:US10560321

    申请日:2004-05-08

    IPC分类号: G06K9/00

    CPC分类号: G06T7/0012

    摘要: Ground glass opacities in the lung are non-solid nebular-like shadows in the parenchyma tissue of the lung, which may be precursors of a lung cancer. According to the present invention, ground glass opacities may automatically be determined on the basis of a texture analysis of the parenchyma. Advantageously, according to the present invention, a robust and reliable determination of ground glass opacities may be provided, even if vessels, lung walls, airspace or bronchi walls are present within the local neighborhood of the ground glass opacity.

    摘要翻译: 肺中的玻璃不透明度是肺实质组织中非固体的星状样阴影,可能是肺癌的前体。 根据本发明,可以根据实质的纹理分析自动确定研磨玻璃的不透明度。 有利地,根据本发明,即使在玻璃不透明度的局部邻域内存在容器,肺壁,空气或支气管壁,也可以提供坚实可靠的磨玻璃不透明度测定。