脉宽的可视化考察  

Visualizational Investigation on Width of Pulse Tracing

作　　者：张治国[1] 牛欣[1] 杨学智[1] 司银楚[1] 朱庆文[1] 郭宙[1] 

机构地区：[1]北京中医药大学基础医学院,北京100029

出　　处：《中国中医药信息杂志》2008年第5期14-16,共3页Chinese Journal of Information on Traditional Chinese Medicine

基　　金：国家自然科学基金面上项目(30371720);国家自然科学基金重点项目(60431020);"十五"国家科技攻关计划项目(2004BA721A09);"十一五"国家科技支撑计划项目(2007BAI07A23)

摘　　要：目的探讨周期运动过程中桡动脉横切面面积、共轴心椭圆的长轴长度以及心动周期内横切面轴心在平行于皮肤表面方向上的最大位移与脉宽之间的关系。方法应用新型中医取脉装置,同步采集40例具有不同脉宽的患者和20例平人关部脉的压力脉图、心电信号和桡动脉横截面动态超声图像。在MATLAB7.0.1软件对超声图像进行分析处理的基础上,观察周期运动中不同宽度脉象的桡动脉横切面图形特征和轴心运动轨迹的变化情况。结果不同宽度脉象的桡动脉横切面面积、共轴心椭圆的长轴长度和轴心最大位移存在着一定的差异。结论长轴长度周期平均值、最大值、最小值,面积周期平均值、最大值、最小值,以及轴心在平行于皮肤表面的最大位移等参数可以作为初步判别脉宽的参数。Objective To study the relationship among the area of transverse section of radial artery, the major axis length of the ellipse with same centroid as transverse section, the maximum centroid displacement in the direction parallel with skin surface in a cardiac cycle and width of pulse tracing, Methods ECG, pressure phygmograms and ultrasound images of transverse section of radial artery of 40 patients with different width of pulse tracing and 20 healthy persons were collected synchronously with a new-type sphymograph. On the basis of images analysis with MATLAB 7.0.1, image characteristics of transverse section of radial artery and centroid motion locus of pulse tracings with different width in a cardiac cycle were observed and analyzed. Results Between pulse tracings with different width, there were significant differences in the area of transverse section of radial artery, the major axis length of the ellipse with same centroid as transverse section and the maximum centroid displacement in the direction parallel with skin surface in a cardiac cycle. Conclusions The mean, maximum and minimum value of the area of transverse section and the major axis length of ellipse and the maximum centroid displacement can be used to discriminate width of pulse tracing.

关 键 词：脉诊 脉宽 桡动脉 轴心运动轨迹 

分 类 号：R241.19[医药卫生—中医诊断学]