张开角沿主动脉弓分布的实验研究  

Experiment on the Distribution of Open Angle Along Aortic Arch

作　　者：李晓阳[1] 李光颖[1] 陈雪花[1] 张宏家[2] 刘愚勇[2] 周子凡[2] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100022 [2]北京安贞医院,北京100029

出　　处：《北京工业大学学报》2007年第4期419-422,共4页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(10372010)

摘　　要：为进一步研究主动脉弯管段的残余应变分布,运用弧长分析方法,结合图像处理测量技术测量了4条成年白兔的主动脉张开角,得到了张开角的分布,并对得到的数据进行了统计学处理．实验结果表明:张开角沿主动脉长度方向变化,弯管段变化明显,直管段变化小,可近似为常数;由张开角沿主动脉环不同方位的分布变化发现,主动脉张开角不沿主动脉环向坐标变化,即动脉壁内的残余应力(应变)是均匀的．In order to further study the distribution of residual strain in aortic arch, the open angles of aorta of four rabbits were measured respectively in the experiment. And the data was analysed by combining the method of analysis on arterial walls and the teehology of image measuring. The distributions of open angle were obtained. The experiment has shown that the open angle is varied with the location along aortic length, the variation in bending section is greater than that in straight section and it is possible to treat it as an constant; according to the distribution and variation in different directions along the aortic ring, it also has shown that the open angle doesn＇t vary with the location in the aortic ring, that is to say, residual strain in arterial wall is even.

关 键 词：血管 图像处理 应变 张开角 

分 类 号：R318.01[医药卫生—生物医学工程]