| 冠状动脉的三维运动特征提取 |
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| 引用本文： | 孙正,郁道银,姜浩.冠状动脉的三维运动特征提取[J].北京生物医学工程,2006,25(4):346-350. |
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| 作者姓名： | 孙正 郁道银 姜浩 |
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| 作者单位： | 天津大学精密仪器及光电子工程学院,光电信息技术科学教育部重点实验室(天津大学),天津,300072;天津大学精密仪器及光电子工程学院,光电信息技术科学教育部重点实验室(天津大学),天津,300072;天津大学精密仪器及光电子工程学院,光电信息技术科学教育部重点实验室(天津大学),天津,300072 |
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| 基金项目： | 中国科学院资助项目，中国博士后科学基金 |
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| 摘 要： | 提出一种根据X射线造影图像序列提取冠状动脉血管三维运动特征的方法.首先对由两个角度的造影图像重建得到的三维血管骨架进行运动估计,计算出两个时刻间骨架上各点的三维运动向量.然后结合心脏解剖和运动的先验知识,对血管运动进行定性分析,如位移方向、振幅及运动模式.提取、解释运动信息,并采用符号表达,方便医生进行观察和分析.最后给出了对临床得到的造影图像序列进行实验的结果.
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| 关 键 词： | 冠状动脉造影 图像序列分析 三维运动分析 |
| 文章编号： | 1002-3208（2006）03-0346-05 |
| 收稿时间： | 2005-01-29 |
| 修稿时间： | 2005年1月29日 |
Three-Dimensional Dynamic Feature Extraction of the Coronary Arteries |
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| SUN Zheng,YU Daoyin,JIANG Hao.Three-Dimensional Dynamic Feature Extraction of the Coronary Arteries[J].Beijing Biomedical Engineering,2006,25(4):346-350. |
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| Authors: | SUN Zheng YU Daoyin JIANG Hao |
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| Institution: | College of Precision Instrument and Opto-Electronic Engineering, Tianjin University, Key Laboratory of Opto-Electronics Information and Technical Science, Ministry of Education, Tianjin 300072 |
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| Abstract: | A novel approach for extracting quantitative and qualitative information of 3D dynamic features of coronary arteries based on X-ray angiogram sequences is presented. From angiographic images of two approximately orthogonal views, 3D reconstruction and motion estimation of arterial skeletons are acquired. Then according to anatomical-functional knowledge of human heart, qualitative dynamic information is extracted from quantitative motion vectors interpreting arterial performance, such as displacement direction, amplitude and motion pattern. Transformation from numeric to symbolic for above results is acquired for clinicians to understand. A test on two real coronary angiogram sequences is presented and results are encouraging. |
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| Keywords: | coronary artery angiography image sequence analysis 3D movement analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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