De-noising and measurement of pulse wave velocity of the wavelet
Liu, B.; Zhu, H.; Ren, X.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 28(1): 54-57
2011
ISSN/ISBN: 1001-5515 PMID: 21485183 Document Number: 652435
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.