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1.发明授权Optimal rotational trajectory determination for RA based on pre-determined optimal view map 有权基于预先确定的最优视图的RA的最优旋转轨迹确定公开(公告)号：US08463014B2
公开(公告)日：2013-06-11
申请号：US12305989
申请日：2007-06-18
IPC分类号： G06K9/00
CPC分类号： A61B6/4441 , A61B6/027 , A61B6/469 , A61B6/481 , A61B6/504
摘要： A method for determining an optimal trajectory for 3-dimensional rotational X-ray coronary angiography for a C-arm X-ray system that has at least two degrees of freedom, where the C-arm X-ray system is defined by a rotational movement of the C-arm expressed in a left/right coronary artery oblique angle, and a roll motion of the C-arm expressed in a caudal/cranial angle. The method includes generating of a 3-dimensional representation of a center-line of a body vessel in a region of interest. generating at least one optimal view map. Further, an optimal trajectory for the X-ray system within the optimal view map is determined, where an optimal trajectory is at least determined by movements of the C-arm within its two degrees of freedom allowing image projections with minimal foreshortening and/or overlap while minimizing an exposure to X-rays.
摘要翻译： 用于确定具有至少两个自由度的C臂X射线系统的三维旋转X射线冠状动脉造影的最佳轨迹的方法，其中C臂X射线系统由旋转运动限定 以左/右冠状动脉倾斜角度表示的C型臂，以及以尾部/颅角表示的C型臂的滚动运动。 该方法包括产生感兴趣区域中的身体血管的中心线的三维表示。 生成至少一个最佳视图。 此外，确定最佳视图中的X射线系统的最佳轨迹，其中最佳轨迹至少由C臂在其两个自由度内的移动决定，允许具有最小缩短和/或重叠的图像投影 同时最小化X射线的暴露。
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2.发明申请SYSTEM AND METHOD FOR GENERATING AND DISPLAYING A 2D PROJECTION FROM A 3D OR 4D DATASET 审中-公开用于从3D或4D数据集生成和显示2D投影的系统和方法公开(公告)号：US20140015836A1
公开(公告)日：2014-01-16
申请号：US13990905
申请日：2011-12-13
申请人： Anne Morawski Neubauer , Willem Frederik Den Hartog , John Dougher Carroll , Onno Wink , Geert Antonius Franciscus Schoonenberg , Shiuh-Yung James Chen , Michael Grass
发明人： Anne Morawski Neubauer , Willem Frederik Den Hartog , John Dougher Carroll , Onno Wink , Geert Antonius Franciscus Schoonenberg , Shiuh-Yung James Chen , Michael Grass
IPC分类号： G06T11/00
CPC分类号： G06T11/003 , G06T11/008 , G06T15/08 , G06T19/003 , G06T2211/404
摘要： A system and method is described by which so-called standard angiographic views can be generated using a 3-or 4-D reconstructed image of the object of interest. One preferred example is the reconstruction of coronary angiograms from rotational angiography sequences. Once the 3D image is created, it can be forward projected into the user-defined “standard” views for live presentation during the procedure. It is anticipated that these standard views, which more closely mimic what a physician is accustomed to see, will be more readily accepted by the interventional community.
摘要翻译： 描述了一种系统和方法，其中可以使用感兴趣对象的3或4-D重建图像来生成所谓的标准血管造影视图。 一个优选的实例是从旋转血管造影序列重建冠状动脉血管造影。 创建3D图像后，可以将其投影到用户定义的“标准”视图中，以便在过程中进行现场演示。 预计这些更为模仿医生习惯看到的标准观点将更容易被介入社区接受。
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3.发明授权Methods and systems for display and analysis of moving arterial tree structures 有权用于显示和分析移动动脉树结构的方法和系统公开(公告)号：US07113623B2
公开(公告)日：2006-09-26
申请号：US10267151
申请日：2002-10-08
CPC分类号： A61B6/466 , A61B6/02 , A61B6/504 , G06T7/0012 , G06T19/20 , G06T2207/30101 , G06T2210/41 , G06T2219/2012
摘要： Methods and systems for reconstruction of a three-dimensional representation of a moving arterial tree structure from a pair of sequences of time varying two-dimensional images thereof and for analysis of the reconstructed representation. In one aspect of the invention, a pair of time varying arteriographic image sequences are used to reconstruct a three-dimensional representation of the vascular tree structure as it moves through a cardiac cycle. The arteriographic image sequences maybe obtained from a biplane imaging system or from two sequences of images using a single plane imaging system. Another aspect of the invention then applies analysis methods and systems utilizing the three-dimensional representation to analyze various kinematic and deformation measures of the moving vascular structure. Analysis results may be presented to the user using color coded indicia to identify various kinematic and deformation measures of the vascular tree.
摘要翻译： 用于从一对其时间变化的二维图像的序列重建移动动脉树结构的三维表示的方法和系统以及用于重建表示的分析。 在本发明的一个方面，一对时变动脉造影图像序列用于重建血管树结构在其通过心动周期时的三维表示。 动画图像序列可以从双平面成像系统或使用单平面成像系统从两个图像序列获得。 然后，本发明的另一方面应用利用三维表示的分析方法和系统来分析运动血管结构的各种运动学和变形测量。 可以使用颜色编码标记向用户呈现分析结果，以识别血管树的各种运动学和变形测量。
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4.发明授权
公开(公告)号：US6047080A
公开(公告)日：2000-04-04
申请号：US665836
申请日：1996-06-19
CPC分类号： G06T11/006 , G06T2211/404
摘要： A method for in-room computer reconstruction of a three-dimensional (3-D) coronary arterial tree from routine biplane angiograms acquired at arbitrary angles and without using calibration objects. The method includes eight major steps: (1) acquiring biplane projection images of the coronary structure, (2) detecting, segmenting and identifying vessel centerlines and constructing a vessel hierarchy representation, (3) calculating bifurcation points and measuring vessel diameters in coronary angiograms if biplane imaging geometry data is not available, (4) determining biplane imaging parameters in terms of a rotation matrix R and a unit translation vector t based on the identified bifurcation points, (5) retrieving imaging parameters if biplane imaging geometry data is already known, (6) establishing the centerline correspondences of the two-dimensional arterial representations, (7) calculating and recovering the 3-D coronary arterial tree based on the calculated biplane imaging parameters, correspondences of vessel centerlines, and vessel diameters, and (8) rendering the reconstructed 3-D coronary tree and estimating an optimal view of the vasculature to minimize vessel overlap and vessel foreshortening.
摘要翻译： 一种三维（3-D）冠状动脉树的室内计算机重构方法，用于从任意角度采集的常规双平面血管造影图像，而不使用校准对象。 该方法包括八个主要步骤：（1）获取冠状结构的双平面投影图像，（2）检测，分割和识别血管中心线并构建血管层级表示，（3）计算冠状动脉造影图中的分叉点和测量血管直径，如果 双平面成像几何数据不可用，（4）基于所识别的分叉点来确定旋转矩阵R和单位平移向量+ E，rar t + EE的双平面成像参数，（5）如果双平面成像 几何数据是已知的，（6）建立二维动脉表现的中心线对应关系，（7）基于计算的双平面成像参数，血管中心线对应关系和血管直径计算和恢复三维冠状动脉树 ，和（8）渲染重建的3-D冠状动脉树并估计脉管系统的最佳视图以使血管最小化 重叠和血管缩短。
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5.发明授权Method and apparatus for three-dimensional reconstruction of coronary vessels from angiographic images and analytical techniques applied thereto 有权用于血管造影图像的冠状血管的三维重建方法和装置以及应用于其的分析技术公开(公告)号：US06501848B1
公开(公告)日：2002-12-31
申请号：US09444138
申请日：1999-11-20
IPC分类号： G06K900
CPC分类号： G06T11/006 , G06T2211/404
摘要： A method for in-room computer reconstruction of a three-dimensional (3-D) coronary vascular tree from routine biplane angiograms acquired at arbitrary angles and without using calibration objects. The method includes seven major steps: (1) acquisition of two standard angiogram sequences by use of a single-plane or biplane imaging system, (2) identification of 2-D coronary vascular trees and feature extractions including bifurcation points, directional vectors, vessel centerlines, and construction of vessel hierarchy in the two images, (3) determination of transformation in terms of a rotation matrix R and a translation vector {right arrow over (t)} based on the extracted vessel bifurcation points and directional vectors, (4) establishment of vessel centerline correspondence, (5) calculation of the skeleton of 3-D coronary vascular trees, (6) rendering of 3-D coronary vascular tree with associated gantry angulation, and (7) calculation of optimal view(s) and 3-D QCA as quantitative measures associated with the selected vascular segment(s) of interest. The calculation of optimal views includes determination of 2-D projections of the reconstructed 3-D vascular tree so as to minimize foreshortening of a selected vascular segment, overlap of a selected vascular segment or both overlap and foreshortening of a selected arterial segment.
摘要翻译： 一种用于从任意角度获取并且不使用校准对象的常规双平面血管造影检查的三维（3-D）冠状动脉血管树的室内计算机重建方法。 该方法包括七个主要步骤：（1）使用单平面或双平面成像系统获取两个标准血管造影图像序列，（2）识别2-D冠状动脉血管和特征提取，包括分岔点，定向向量，血管 （3）根据旋转矩阵R和平移矢量确定变换（右箭头）（t基于提取的血管分叉点和方向向量，（4）建立 （5）计算3-D冠状动脉血管的骨架，（6）提供具有相关龙门架角度的3-D冠状动脉血管，以及（7）最佳视图和3维冠状血管树的计算， D QCA作为与所选择的血管片段相关的定量测量，最佳视图的计算包括确定重建的3-D血管树的2-D投影，以便最小化 选择的血管片段的缩短，所选择的血管片段的重叠或者选择的动脉节段的重叠和缩短。
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