De-noising and measurement of pulse wave velocity of the wavelet.
- Author:
Baohua LIU
1
;
Honglian ZHU
;
Xiaohua REN
Author Information
1. College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China. liubaohua@ysu.edu.cn
- Publication Type:Journal Article
- MeSH:
Arteriosclerosis;
diagnosis;
physiopathology;
Artifacts;
Blood Flow Velocity;
physiology;
Humans;
Pulse;
Signal Processing, Computer-Assisted;
Wavelet Analysis
- From:
Journal of Biomedical Engineering
2011;28(1):54-57
- CountryChina
- Language:Chinese
-
Abstract:
Pulse wave velocity (PWV) is a vital index of the cardiovascular pathology, so that the accurate measurement of PWV can be of benefit for prevention and treatment of cardiovascular diseases. The noise in the measure system of pulse wave signal, rounding error and selection of the recording site all cause errors in the measure result. In this paper, with wavelet transformation to eliminate the noise and to raise the precision, and with the choice of the point whose slope was maximum as the recording site of the reconstructing pulse wave, the measuring system accuracy was improved.
