Visualizational Investigation on Width of Pulse Tracing
- VernacularTitle:脉宽的可视化考察
- Author:
Zhiguo ZHANG
;
Xin NIU
;
Xuezhi YANG
- Publication Type:Journal Article
- Keywords:
pulse taking;
width of pulse tracing;
radial artery;
centroid motion locus
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2006;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
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.
