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1.发明申请Systems and methods for segmenting and displaying tubular vessels in volumetric imaging data 审中-公开用于在体积成像数据中分割和显示管状血管的系统和方法公开(公告)号：US20050110791A1
公开(公告)日：2005-05-26
申请号：US10723445
申请日：2003-11-26
CPC分类号： G06T7/60 , G06T7/12 , G06T7/149 , G06T2207/10081 , G06T2207/20101 , G06T2207/30101 , G06T2207/30172
摘要： This document discusses, among other things, systems and methods for segmenting and displaying blood vessels or other tubular structures in volumetric imaging data. The vessel of interest is specified by user input, such as by using a single point-and-click of a mouse or using a menu to select the desired vessel. A central vessel axis (CVA) or centerline path is obtained. A segmentation algorithm uses the centerline to propagate a front that collects voxels associated with the vessel. Re-initialization of the algorithm permits control parameter(s) to be adjusted to accommodate local variations at different parts of the vessel. Termination of the front occurs, among other things, upon vessel departure, for example, indicated by a speed of front evolution falling below a predetermined threshold. After segmentation, an analysis view displays on a screen a 3D rendering of an organ or region, along with orthogonal lateral views of the vessel of interest, and cross-sectional views taken perpendicular to the centerline, which has been corrected using the segmented volumetric vessel data. Cross-sectional diameters are measured automatically, or using a computer-assisted ruler, to permit assessment of stenosis and/or aneurysms. The segmented vessel may also be displayed with a color-coding to indicate its diameter.
摘要翻译： 本文件还讨论了在体积成像数据中分割和显示血管或其他管状结构的系统和方法。 感兴趣的血管由用户输入指定，例如通过使用鼠标的单次点击或使用菜单来选择所需的血管。 获得中心血管轴（CVA）或中心线路径。 分割算法使用中心线来传播收集与血管相关联的体素的前部。 算法的重新初始化允许调整控制参数以适应船舶不同部分的局部变化。 除了别的以外，在船只离开时，例如由前进速度低于预定阈值所表示的，前方的终止发生。 在分割之后，分析视图在屏幕上显示器官或区域的3D渲染以及感兴趣血管的正交侧视图以及垂直于中心线拍摄的横截面视图，其已经使用分割的体积容器 数据。 横截面直径自动测量，或使用计算机辅助尺子来测量狭窄和/或动脉瘤。 分段血管还可以用颜色编码显示以指示其直径。
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公开(公告)号：US20070116346A1
公开(公告)日：2007-05-24
申请号：US11287497
申请日：2005-11-23
IPC分类号： G06K9/00
CPC分类号： G06T19/003 , G06K9/4638 , G06K2209/051 , G06T7/162 , G06T2207/30028
摘要： This document discusses, among other things, systems and methods for efficiently calculating a colon segmentation from one or more candidate virtual three-dimensional objects. A sequence of image scans are analyzed and regions that represent air-filled objects and tagged-stool are identified as candidate segments. A characteristic path is generated for each candidate segment. The paths are joined using a cost network and re-oriented to be consistent with a typical flythrough path. The connected path is then used to generate a continuous volumetric virtual object.
摘要翻译： 本文件尤其讨论了用于从一个或多个候选虚拟三维对象有效地计算冒号分割的系统和方法。 分析一系列图像扫描，将表示空气填充物体和标记粪便的区域识别为候选区段。 为每个候选段生成特征路径。 这些路径使用成本网络进行连接，并重新定向以与典型的穿越路径保持一致。 然后连接的路径用于生成连续体积虚拟对象。
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公开(公告)号：US07574029B2
公开(公告)日：2009-08-11
申请号：US11287497
申请日：2005-11-23
CPC分类号： G06T19/003 , G06K9/4638 , G06K2209/051 , G06T7/162 , G06T2207/30028
摘要： This document discusses, among other things, systems and methods for efficiently calculating a colon segmentation from one or more candidate virtual three-dimensional objects. A sequence of image scans are analyzed and regions that represent air-filled objects and tagged-stool are identified as candidate segments. A characteristic path is generated for each candidate segment. The paths are joined using a cost network and re-oriented to be consistent with a typical flythrough path. The connected path is then used to generate a continuous volumetric virtual object.
摘要翻译： 本文件尤其讨论了用于从一个或多个候选虚拟三维对象有效地计算冒号分割的系统和方法。 分析一系列图像扫描，将表示空气填充物体和标记粪便的区域识别为候选区段。 为每个候选段生成特征路径。 这些路径使用成本网络进行连接，并重新定向以与典型的穿越路径保持一致。 然后连接的路径用于生成连续体积虚拟对象。
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公开(公告)号：US07929748B2
公开(公告)日：2011-04-19
申请号：US12477498
申请日：2009-06-03
CPC分类号： G06T19/003 , G06K9/4638 , G06K2209/051 , G06T7/162 , G06T2207/30028
摘要： This document discusses, among other things, systems and methods for efficiently calculating a colon segmentation from one or more candidate virtual three-dimensional objects. A sequence of image scans are analyzed and candidate segments are identified. Landmark segments are identified from the candidate segments. A characteristic path is generated for each candidate segment. The paths are joined using a cost network and reoriented to be consistent with a typical flythrough path. The connected path is then used to generate a continuous volumetric virtual object.
摘要翻译： 本文件尤其讨论了用于从一个或多个候选虚拟三维对象有效地计算冒号分割的系统和方法。 分析一系列图像扫描并识别候选片段。 从候选片段中识别地标片段。 为每个候选段生成特征路径。 路径使用成本网络进行连接，并重新定位为与典型的飞行路径保持一致。 然后连接的路径用于生成连续体积虚拟对象。
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公开(公告)号：US20090238431A1
公开(公告)日：2009-09-24
申请号：US12477498
申请日：2009-06-03
IPC分类号： G06K9/00
CPC分类号： G06T19/003 , G06K9/4638 , G06K2209/051 , G06T7/162 , G06T2207/30028
摘要： This document discusses, among other things, systems and methods for efficiently calculating a colon segmentation from one or more candidate virtual three-dimensional objects. A sequence of image scans are analyzed and candidate segments are identified. Landmark segments are identified from the candidate segments. A characteristic path is generated for each candidate segment. The paths are joined using a cost network and re-oriented to be consistent with a typical flythrough path. The connected path is then used to generate a continuous volumetric virtual object.
摘要翻译： 本文件尤其讨论了用于从一个或多个候选虚拟三维对象有效地计算冒号分割的系统和方法。 分析一系列图像扫描并识别候选片段。 从候选片段中识别地标片段。 为每个候选段生成特征路径。 这些路径使用成本网络进行连接，并重新定向以与典型的穿越路径保持一致。 然后连接的路径用于生成连续体积虚拟对象。
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