| 动态CT脑灌注影像后处理算法 |
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| 引用本文： | 张国栋,陈锦昌,陈亮. 动态CT脑灌注影像后处理算法[J]. 工程图学学报, 2005, 26(5): 93-97 |
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| 作者姓名： | 张国栋 陈锦昌 陈亮 |
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| 作者单位： | 1. 东北大学信息工程学院,沈阳,110004;沈阳航空工业学院计算机学院,沈阳,110034
2. 华南理工大学机械工程学院,广州,510640 |
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| 摘 要： | 分析了动态CT脑灌注影像定量测量的相关理论基础。设计实现了实用的医学影像后处理算法,通过量化分析动态CT脑灌注检查所获得的影像序列可测量出脑组织的血流灌注量,绘制出一系列的时间密度曲线,进而分析、计算出相关的脑血流动力学参数,得到具有临床诊断价值的功能影像。临床病例测试表明,该算法的计算机实现对于正确诊断急性脑缺血等早期脑部急性病症,具有十分显著的辅助作用。
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| 关 键 词： | 计算机应用 医学影像 灌注 时间密度曲线 功能影像 |
| 文章编号： | 1003-0158（2005）05-0093-05 |
| 收稿时间： | 2005-04-08 |
| 修稿时间： | 2005-04-08 |
A Post-Processing Algorithm for Dynamic Cerebral Perfusion CT Image |
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| ZHANG Guo-dong,CHEN Jin-chang,CHEN Liang. A Post-Processing Algorithm for Dynamic Cerebral Perfusion CT Image[J]. Journal of Engineering Graphics, 2005, 26(5): 93-97 |
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| Authors: | ZHANG Guo-dong CHEN Jin-chang CHEN Liang |
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| Affiliation: | 1. College of Information Science and Engineering, Northeastern University, Shenyang 110004, China; 2. School of Computer Science, Shenyang Institute of Aeronautical Engineering, Shenyang 110034, China; 3. College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | In this paper,analyze the theoretic basis of dynamic CT cerebral perfusion image quantitative measurement and then implement an applied medical image post-processing algorithm.Firstly,the perfusion values of cerebral tissue blood flow were measured through analyzing the image sequence obtained from dynamic CT perfusion examination quantitatively.Secondly,draw a series of time density curve using these values.Thirdly,analyze and calculate some hemodynamic parameters including cerebral blood flow,cerebral blood volume,time to peak and mean transit time.To the last step,generated the useful functional image.Clinical test represented this algorithm is very useful for aided diagnosis in clinic. |
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| Keywords: | computer application medical image perfusion time density curve functional image |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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