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    Method and apparatus for removing obstructing structures in CT imaging
    2.
    发明授权
    Method and apparatus for removing obstructing structures in CT imaging 失效
    用于去除CT成像中阻塞结构的方法和装置

    公开(公告)号：US07123760B2

    公开(公告)日：2006-10-17

    申请号：US10301018

    申请日：2002-11-21

    申请人： Rakesh Mullick ,  Vidya Pundalik Kamath ,  Yogisha Mallya

    发明人： Rakesh Mullick ,  Vidya Pundalik Kamath ,  Yogisha Mallya

    IPC分类号： G06K9/00

    CPC分类号： G06T5/50 ,  G06T7/0012 ,  G06T7/11 ,  G06T7/174 ,  G06T7/187 ,  G06T7/49 ,  G06T2200/04 ,  G06T2207/10081 ,  G06T2207/30008 ,  G06T2207/30101

    摘要： A technique is provided for automatically identifying regions of bone or other structural regions within a reconstructed CT volume data set. The technique identifies and labels regions within the data set and computes various statistics for the regions. A rule-based classifier processes the statistics to classify each region. Incidental connections between disparate regions are eliminated. A structure mask, such as a bone mask, is then constructed after exclusion of regions of interest, such as a vascular map. The structure mask may then be used to construct a volume rendering free of the structure, such as bone-free.

    摘要翻译： 提供了一种用于自动识别重建CT体积数据集内的骨骼或其他结构区域的技术。 该技术识别和标记数据集内的区域，并计算各区域的各种统计信息。 基于规则的分类器处理统计信息以对每个区域进行分类。 消除了不同区域之间的偶然连接。 然后在排除感兴趣区域（例如血管图）之后构建结构掩模，例如骨掩模。 然后可以使用结构掩模来构造没有结构的体绘制，例如无骨。

    Method and apparatus for partitioning a volume
    3.
    发明授权
    Method and apparatus for partitioning a volume 有权
    分割卷的方法和装置

    公开(公告)号：US07177453B2

    公开(公告)日：2007-02-13

    申请号：US10304581

    申请日：2002-11-26

    申请人： Srikanth Suryanarayanan ,  Rakesh Mullick ,  Vidya Pundalik Kamath ,  Yogisha Mallya ,  Robert F. Senzig

    发明人： Srikanth Suryanarayanan ,  Rakesh Mullick ,  Vidya Pundalik Kamath ,  Yogisha Mallya ,  Robert F. Senzig

    IPC分类号： G06K9/00

    CPC分类号： G06T7/0012 ,  G06T7/11 ,  G06T2207/10116 ,  G06T2207/30008 ,  G06T2207/30101

    摘要： A technique is provided for partitioning an imaged volume into two or more sub-volumes. The technique identifies partition lines which separate the sub-volumes by generating a profile, such as a bone profile, which is then analyzed to determine the placement of the partition lines. In one embodiment, placement of the partition lines is determined automatically by applying one or more sets of hierarchical rules to the profile. After separation of the imaged volume into sub-volumes, each sub-volume may be differentially segmented such that segmentation is customized for the sub-volume. Likewise, after separation of the imaged volume into sub-volumes, the acquisition parameters for each sub-volume may be customized for subsequent acquisitions.

    摘要翻译： 提供了一种用于将成像的体积分成两个或更多个子体积的技术。 该技术通过生成轮廓（例如骨骼轮廓）来分离子体积的分割线，然后分析轮廓以确定分割线的位置。 在一个实施例中，通过将一个或多个分层规则集合应用于简档来自动确定分割线的放置。 在将成像的体积分离成子体积之后，每个子体积可以被差异地分段，使得针对子体积定制分割。 同样，在将成像的体积分成子体积之后，可以为每个子体积的采集参数定制以用于随后的采集。

    Method and apparatus for extracting multi-dimensional structures using dynamic constraints
    5.
    发明授权
    Method and apparatus for extracting multi-dimensional structures using dynamic constraints 有权
    使用动态约束提取多维结构的方法和装置

    公开(公告)号：US07310435B2

    公开(公告)日：2007-12-18

    申请号：US10723411

    申请日：2003-11-25

    申请人： Yogisha Mallya ,  Rakesh Mullick ,  Srikanth Suryanarayanan

    发明人： Yogisha Mallya ,  Rakesh Mullick ,  Srikanth Suryanarayanan

    IPC分类号： G06K9/00

    CPC分类号： G06T7/0012 ,  A61B6/00 ,  A61B6/548 ,  G06T7/12 ,  G06T2207/10081 ,  G06T2207/20156 ,  G06T2207/30101

    摘要： A technique is provided for segmenting a structure of interest from a volume dataset. The technique identifies regions of the structure using templates having characteristics of the structure of interest. The identified regions may then undergo a constrained growth process using dynamic constraints that may vary based on local statistics associated with the identified structure regions. Edges within the volume may be determined using gradient data determined by evaluating the strongest gradient between each pixel and all adjacent pixels. The edge data may be used to prevent the constrained growing process from exceeding the boundaries of the structure of interest.

    摘要翻译： 提供了一种用于从卷数据集分割感兴趣结构的技术。 该技术使用具有感兴趣结构特征的模板来识别结构的区域。 所识别的区域然后可以使用可基于与所识别的结构区域相关联的本地统计数据而变化的动态约束来经历约束生长过程。 可以使用通过评估每个像素和所有相邻像素之间的最强梯度确定的梯度数据来确定体积内的边缘。 边缘数据可以用于防止约束生长过程超出感兴趣的结构的边界。

    Brain image alignment method and system
    7.
    发明授权
    Brain image alignment method and system 有权
    脑图像对齐方法及系统

    公开(公告)号：US08041088B2

    公开(公告)日：2011-10-18

    申请号：US11702372

    申请日：2007-02-05

    申请人： Yogisha Mallya ,  Srikanth Suryanarayanan ,  Krishna Seetharam Shriram ,  Rakesh Mullick ,  Mitali Janardan More

    发明人： Yogisha Mallya ,  Srikanth Suryanarayanan ,  Krishna Seetharam Shriram ,  Rakesh Mullick ,  Mitali Janardan More

    IPC分类号： G06K9/00

    CPC分类号： A61B6/032 ,  A61B6/501 ,  A61B6/5247 ,  G06T7/38

    摘要： A technique for automatically labeling a CT image of the brain with anatomical information. The anatomical information is obtained from an atlas of the brain prepared from an MR image of the brain. The atlas contains image data that is referenced to the Talairach coordinate system. The atlas is aligned to the CT image and the coordinate system of the CT image data is transformed to the Talairach coordinate system. The alignment of the CT image and the atlas is performed using anatomical landmarks that are visible on both the CT image and the atlas. The CT image is then labeled automatically with the anatomical information in the atlas.

    摘要翻译： 一种用解剖信息自动标记大脑CT图像的技术。 解剖信息是从脑的MR图像准备的大脑图集获得的。 图集包含参考Talairach坐标系的图像数据。 图集与CT图像对齐，CT图像数据的坐标系转换为Talairach坐标系。 使用在CT图像和图谱上可见的解剖学标记来执行CT图像和图谱的对准。 然后用图谱中的解剖信息自动标记CT图像。

    Brain image alignment method and system
    8.
    发明申请
    Brain image alignment method and system 有权
    脑图像对齐方法及系统

    公开(公告)号：US20080188741A1

    公开(公告)日：2008-08-07

    申请号：US11702372

    申请日：2007-02-05

    申请人： Yogisha Mallya ,  Srikanth Suryanarayanan ,  Krishna Seetharam Shriram ,  Rakesh Mullick ,  Mitali Janardan More

    发明人： Yogisha Mallya ,  Srikanth Suryanarayanan ,  Krishna Seetharam Shriram ,  Rakesh Mullick ,  Mitali Janardan More

    IPC分类号： A61B5/055

    CPC分类号： A61B6/032 ,  A61B6/501 ,  A61B6/5247 ,  G06T7/38

    摘要： A technique for automatically labeling a CT image of the brain with anatomical information. The anatomical information is obtained from an atlas of the brain prepared from an MR image of the brain. The atlas contains image data that is referenced to the Talairach coordinate system. The atlas is aligned to the CT image and the coordinate system of the CT image data is transformed to the Talairach coordinate system. The alignment of the CT image and the atlas is performed using anatomical landmarks that are visible on both the CT image and the atlas. The CT image is then labeled automatically with the anatomical information in the atlas.

    摘要翻译： 一种用解剖信息自动标记大脑CT图像的技术。 解剖信息是从脑的MR图像准备的大脑图集获得的。 图集包含参考Talairach坐标系的图像数据。 图集与CT图像对齐，CT图像数据的坐标系转换为Talairach坐标系。 使用在CT图像和图谱上可见的解剖学标记来执行CT图像和图谱的对准。 然后用图谱中的解剖信息自动标记CT图像。